1. ORDER
  1. TITLE 35: ENVIRONMENTAL PROTECTION
  2. SUBTITLE H: NOISE
    1. CHAPTER I: POLLUTION CONTROL BOARD
      1. PART 901
      2. SOUND EMISSION STANDARDS AND LIMITATIONS FOR PROPERTY LINE-NOISE-SOURCES
        1. Section 901.101 Classification of Land According to Use
        2. Section 901.103 Sound Emitted to Class B Land
        3. Section 901.104 Highly-Impulsive Sound
        4. Section 901.105 Impact Forging Operations
        5. Section 901.106 Prominent Discrete Tones
        6. Section 901.107 Exceptions
        7. Section 901.108 Compliance Dates for Part 901
        8. Section 901.109 Highly-Impulsive Sound From Explosive Blasting
        9. Section 901.110 Amforge Operational Level
        10. Section 901.111 Modern Drop Forge Operational Level
        11. Section 901.113 Wagner Casting Site-Specific Operational Level (Repealed)
        12. Section 901.118 Atlas Forgings Division of Scot Forge Company – Franklin Park Division Operational Level
        13. Section 901.121 Vaughan & Bushnell Operational Level
  3. APPENDIX B
  4. CHAPTER I: ILLINOIS POLLUTION CONTROL BOARD
    1. Section
      1. Section 910.102 Instrumentation
        1. Section 910.106 Protocols for Determination of Sound Levels
        2. 910.TABLE A. Daytime long-term background ambient Leq levels in decibels by land use categories and 1/3 octave-band level

1
 
 

ILLINOIS POLLUTION CONTROL BOARD
January 19, 2006
 

IN THE MATTER OF:
 
PROPOSED NEW AND UPDATED RULES
FOR MEASUREMENT AND NUMERICAL SOUND EMISSIONS STANDARDS AMENDMENTS TO 35 ILL. ADM CODE 901 and 910 		)
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R03-9
(Rulemaking - Noise)

Proposed Rule. Second Notice.
 
OPINION AND ORDER OF THE BOARD (by G.T. Girard):
 
 Pursuant to Sections 27 and 28 of the Illinois Environmental Protection Act (Act), (415 ILCS 5/27-5/28 (2004)) and 35 Ill. Adm. Code 102.Subpart B, on February 20, 2003, the Board opened this rulemaking to propose updated regulations governing noise found in 35 Ill. Adm. Code Subtitle H. Many of the sound measurement definitions and techniques in the Board’s current rules do not reflect present scientific standards. The instant proposal revises outdated numerical sound emission standards for property line noise sources found at 35 Ill. Adm. Code 901. In addition, the proposal adds Part 910 to the Board’s rules that incorporates noise measurement techniques currently contained only in Illinois Environmental Protection Agency (Agency) rules at 35 Ill. Adm. Code 951. The Board today proposes for second notice the amendments.
 

BACKGROUND
 

 The Board opened this rulemaking by issuing a draft for public comment on February 20, 2003. The Board elicited comments on the draft prior to first-notice publication and the Board held two hearings before Hearing Officer William F. Murphy. The first hearing was held in Springfield on May 1, 2003, no members of the public attended that hearing. The second hearing (Tr.2) was held in Chicago on May 15, 2003. Joel Sternstein and Howard Chinn of the Illinois Attorney General’s Office (AGO) attended the second hearing and Mr. Chinn presented testimony. During the time that the proposal was offered for public comment, the Board received two public comments, one from the AGO (PC 2) and one from Dr. Paul Schomer (PC 1).
 
On July 10, 2003, the Board proposed the rule for first notice. On July 25, 2003, the first notice was published in the Illinois Register (27 Ill. Reg. 11908). The Board received five public comments. The comments were from Scot Forge (PC 3), Vaughan and Bushnell Manufacturing (PC 4), Illinois Association of Aggregate Producers (IAAP) (PC 5), Boughton Trucking and Materials Inc. (Boughton Trucking) (PC 6) and Intermet Decatur Foundry (Intermet) (PC 7). In general, the comments requested a site-specific rule modification or requested another hearing to discuss concerns with the proposed rule.
 
 On October 18, 2003, the Board determined that additional hearings should be held. After holding an additional hearing, the Board determined on March 4, 2004, that administrative economy supported including site-specific changes in a new first notice. Because of this decision, the Board withdrew the first notice (See 28 Ill. Reg. 7341, 7342 (May 21, 2004)).
 

   
The Board held two hearings before Board Hearing Officer Marie Tipsord. The third hearing (Tr.3) was held February 10, 2004, in Chicago. At that hearing, Mr. John P. McGillivray testified on behalf of Scot-Forge Company and Howard Chinn testified on behalf of the AGO. The fourth hearing (Tr.4) was held November 4, 2004, in Springfield. Mr. John Henriksen and Dane Tittman testified on behalf of the IAAP.
The Board received six additional comments during the second phase of hearings. The comments were from Moline Forge (PC 8), Intermet (PC 9,) IAAP (PC 10), the AGO (PC 11), Village of Bridgeview (Bridgeview) (PC 12), and the Illinois Department of Natural Resources (IDNR) (PC 13).
On March 17, 2005, the Board proceeded to a second first notice with this rulemaking. That first notice was published in the Illinois Register on April 15, 2005 (29 Ill. Reg. 5196). The Board held an additional hearing on September 1, 2005 (Tr. 5) and at that hearing Mr. Henriksen again testified along with Mr. Willard Pierce of Evenson Explosives, LLC on behalf of IAAP. Also Mr. Jim Hafliger of the IDNR testified. The public comment period closed on October 17, 2005, and the Board received six additional comments during the 2005 first-notice period. Those comments are:
 
PC 14 Joseph R. Angleton, Office Director, Office of Mines and Minerals, Illinois Department of Natural Resources
PC 15 John Henriksen, Executive Director, Illinois Association of Aggregate Producers
PC 16 Dr. Paul Schomer, Schomer and Associates, Inc.
PC 17 Therese M. Dorigan, Bradburne, Briller & Johnson, LLC
PC 18 Village of Bridgeview
PC 19 Dr. Paul Schomer, on behalf of Village of Bridgeview

COMMENTS AND TESTIMONY
 

 The Board received six comments along with testimony at the September 1, 2005 hearing regarding the Board’s 2005 first-notice proposal. The following paragraphs will summarize the comments and testimony received by the Board.
 

   
Testimony
At the September 1, 2005 hearing, Mr. John Henriksen again testified along with Mr. Willard Pierce of Evenson Explosives, LLC on behalf of IAAP. Also Mr. Jim Hafliger of the Illinois Department of Natural Resources (IDNR), Office of Mines and Minerals testified.
Mr. John Henriksen

 Mr. Henriksen manages IAAP, which is a trade association representing companies that produce aggregates (i.e. crushed sand, stone, and gravel). Tr.5 at 6-7. The companies have 113 members that operate in 80 Illinois counties and produce 111 million tons of materials. Tr.5 at 7. The aggregate industry has been regulated for blasting by IDNR since 1995 pursuant to Section 6.5 of the Surface-Mined Land Conservation and Reclamation Act (225 ILCS 715/6.5 (2004)). Id. IDNR’s Office of Mines and Minerals has promulgated a set of regulations that regulate blasting at coal mining and aggregate mining sites in Illinois pursuant to Section 3.13 of the Surface Coal Mining Land Conservation and Reclamation Act (225 ILCS 715/3.13 (2004)) (See 62 Ill. Adm. Code 300, 1816). Tr.5 at 7.
 

 
Mr. Henriksen testifies that IDNR’s Office of Mines and Minerals has promulgated a comprehensive set of regulations that subjects explosives blasting at coal mining and aggregate mining operations to air blast or ground vibration monitoring, or both, as necessary to prevent property damage and protect public safety. Tr.5 at 7-8. Additionally, IDNR enforces the regulations using highly trained, technologically proficient inspectors and state of the art equipment. Id.

 Mr. Henriksen states that the Board is seeking to maintain a duplicative and overlapping regulatory program for coal mining and aggregate producers in Illinois. Tr.5 at 8. Mr. Henriksen argues that Section 25 of the Act provides that the Board “may adopt” regulations limiting noise emissions; however, the Board is not required to adopts such limitations. Tr.5 at 9-10. Mr. Henriksen asserts that the Board has elected not to regulate other sources of noise and can do so here as well. Id. Mr. Henriksen acknowledges that the Board has the authority to decide which activities should be regulated. Tr.5 at 10. Mr. Henriksen contends, however, that regulation of sound generated by blasting operations at aggregate or coal mines, which are already highly regulated by a sister agency, is unreasonable. Tr.5 at 10-11. Mr. Henriksen suggests that Part 901 not apply to explosive operations at mines. Tr.5 at 11-12.
 
 In response to questions from the Board, Mr. Henriksen states that only the sound produced from blasting should be exempted from the Board’s rules. Tr.5 at 35. Mr. Henriksen states that the Board should regulate steady noises that are a function of mining operations such as sounds generated from crushing equipment and backup alarms on equipment. Id. However, pursuant to Section 25 of the Act (415 ILCS 5/25 2004), Mr. Henriksen believes the Board should defer to IDNR’s regulations on blasting at mining operations. Id.
 
 Mr. Henriksen recommends that if the Board decides to continue to regulate the noise emissions from blasting at mining operations, the Board should adopt a regulatory program in harmony with IDNR’s program. Tr.5 at 13. In order for the Board’s rules to be consistent with IDNR’s program, Mr. Henriksen suggests language changes such as limiting blasting from sunrise to sunset and shifting the regulatory focus from the property line to protected structures. Tr.5 at 13-14. Also, Mr. Henriksen maintains that none of the monitoring methods proposed in Part 910 will monitor highly impulsive sound from blasting. Tr.5 at 15.
 
Mr. Jim Hafliger
 
 Mr. Hafliger, whose title is Chief Division Technical Explosive Specialist in the Office of Mines and Minerals at IDNR, testified to provide the Board with an overview of IDNR’s program and responsibilities related to blasting at coal mines and aggregate mines in Illinois. Tr.5 at 17. Mr. Hafliger attempts to point to areas of duplication between the Board’s regulations and IDNR’s program. Id. IDNR’s program is staffed by 12 individuals in three offices throughout the state. Tr.5 at 17-18. Eight of the staff members are full time inspectors regulating the use of explosives in Illinois. Tr.5 at 18. Part of IDNR’s statutorily mandated duties include regulating the use, handling and storage of explosives at the 172 active surface mining operations in Illinois. Id. IDNR’s inspectors are in the field on a daily basis. These inspectors use 35 seismographs that register and record (for analysis by IDNR’s experts) the traces reflected as a result of air blast or air overpressure and ground vibrations at the mining operations. Id.
 
 IDNR’s program has been in place for many years and started with regulation of explosive use in the 1930s. Tr.5 at 18. In the 1980s, IDNR began regulating coal blasting operations and in the 1990s regulating blasting operations at the surface aggregate operations. Tr.5 at 18-19. The field inspectors are trained to use the seismographs and to analyze the data. Tr.5 at 19. IDNR regularly monitors the sites and takes a proactive stance to make sure the operators are fulfilling their statutory obligations. Tr.5 at 20. IDNR has a comprehensive training program for people who undertake blasting in Illinois and recently Illinois was recognized for using an estimated 500 million pounds of explosives over a five-year period without a reported injury. Tr.5 at 20-21.
 
 IDNR’s program is enforced using a hearing process within IDNR and can include fines or even suspension or revocation of actual blasting operations. Tr.5 at 41. The program includes requirements for recordkeeping for each blast that incorporates every minor detail of the blast. Tr.5 at 41-42. Mr. Hafliger testifies that there are 17 different criterion included on the blasting records which must be available for inspection by IDNR’s staff. Tr.5 at 42-43. Furthermore, both the mining company and the actual person performing the blasting are subject to sanctions for violation of IDNR’s rules. Tr.5 at 43-44. Mr. Hafliger also notes that IDNR has an 800 number to be used for any complaints relating to blasting and that number has received about 100 complaints this year. Tr.5 at 44, 46.
 
Mr. Willard Pierce
 
 Mr. Pierce is general manager of Evenson Explosives, which provides blasting services in four states with a majority of that in Illinois. Tr. 5 at 23. Mr. Pierce also worked for IDNR and helped establish and implement the blasting regulatory program at IDNR. Id. Mr. Pierce wishes to ensure that the regulatory requirements are consistent and that the requirements can be implemented. Tr.5 at 24. Mr. Pierce testifies that based on the regulations, blasters in Illinois need two years hand on experience, as well as class room training and examination before receiving a license. Tr.5 at 24.
 

  
Mr. Pierce expresses concern over the inconsistency in the C-weighted numbers between those in Section 901.109 and IDNR’s rules. Tr.5 at 25-26. Mr. Pierce also suggests that there should only be one standard and that standard should not deviate depending on the time of day or the number of times a blast occurs during the day. Tr.5 at 26.
Mr. Pierce also testifies that an air blast is a very specific type of sound and is a very low frequency. Tr.5 at 26. Mr. Pierce states that you do not actually “hear” an air blast but rather the effects of the air blast. Id. For example, Mr. Pierce states that you may hear surface delays or venting and you might feel the blast in your chest. Id.

 Mr. Pierce indicates that about 12 years ago the International Society of Explosive Engineers worked with manufacturers of monitoring equipment to develop standards for monitoring air blasts from blasting. Tr.5 at 27. The standard was published in 1999 and uses the seismograph for measuring air blast because the seismograph can measure ground vibration and air blast. Tr.5 at 27-28. Mr. Pierce sums up his position by stating that the industry has a standard for air blast, and a standard for monitoring which has been in place for a number of years. Tr.5 at 29-30. Further, the standard is based on science and is protective of structures. Tr.5 at 30.
 
 Mr. Pierce notes that air blast is a short-term transient noise, that lasts about three seconds. Tr.5 at 28. Thus, where the Board’s propose rule suggests shutting off monitoring equipment for transient noise, the rule would seem to allow shutting down monitoring equipment for air blasts. Id. Mr. Pierce recommends that if the Board chooses to adopt a rule requiring monitoring of air blasting, that the Board require the use of a blasting seismograph for monitoring. Tr.5 at 29.
 
 Mr. Pierce summarizes his testimony by stating that he has five recommendations. The first is that the C-weighted and flat response microphones have the same number. Tr.5 at 30. Second, Mr. Pierce recommends that the limit for air blasts apply at a structure, not the property line. Id. Third, Mr. Pierce recommends limiting blasting from sunrise to sunset, except in emergency situations. Tr.5 at 31. Fourth, Mr. Pierce does not believe the limits should be lowered based on the time of day. Id. And fifth, Mr. Pierce urges the Board to require the use of monitoring procedures and equipment appropriate to blasting. Id.
 

Public Comments
 

          
As indicated by the list above the Board received six comments including two from Dr. Paul Schomer including one on behalf of the Village of Bridgeview. The Board will group the comments by the author of the comment.
Office of Mines and Minerals, IDNR
IDNR regulates blasting operations at all surface aggregate and coal mines in Illinois. PC 14 at 1. IDNR’s comprehensive regulations help prevent personal injury and property damage though the use of the conservative limits of one inch per second ground vibration and 133dB maximum air over pressure. Id. IDNR comments that these standards are nationally recognized and accepted industry practice. Id. IDNR determines regulatory compliance by routinely inspecting and monitoring blasting at all of the State’s 172 active aggregate and coal blasting sites. Id. IDNR’s staff of 13 people have over 100 years of combined explosives related experience and field inspectors trained in the technical elements of seismology regularly monitor blasting using state-of-the-art seismographs. Id.
IDNR specifically lists several points where the Board’s proposal is inconsistent or deviates from IDNR’s standards and IDNR recommends changes for consistency. First, IDNR notes that the amendments to Section 901.109(a) result in limits that are inconsistent with and less stringent than the IDNR limits. PC 14 at 1. IDNR also suggests that the limits remain constant from sunrise to sunset and not be amended based on the time of day. PC 14 at 2. IDNR recommends that the regulatory limits apply to the nearest protected structure rather than the property line. Id. IDNR also notes that the monitoring methods in Part 910 are not conducive for use in monitoring blasting and seismographs are specifically designed for monitoring blasting. Id.
IDNR states that the proposed rules are trying to fit air over pressure within the scope of intrusive noise and sound regulations when in fact the two are separate issues. PC 14 at 2. IDNR suggests that the surface aggregate and coal mine blasting provisions in the Board’s rules be deferred to IDNR for regulation. Id.
IAAP
IAAP’s public comment echoes the testimony of Mr. Henriksen in suggesting that the Board can and should defer to IDNR for the regulation of blasting at aggregate and coal mining operations. PC 15. IAAP points out that IDNR has regulated blasting operations at aggregate mines since 1995 and surface coal mines since 1982. Id. IAAP suggests that if the Board does decide to regulate blasting from mine operations, then the rules should be amended to ensure consistency between the Board and IDNR’s regulations. Id.
Ms. Therese M. Dorigan
Ms. Dorigan filed a comment on behalf of Kropp Forge. PC 17. Ms. Dorigan notes that Kropp Forge is not seeking any site-specific relief in this proceeding, but wishes to preserve any right to seek site-specific relief from the Board at a future date. Id.
Dr. Paul Schomer and Village of Bridgeview

 Dr. Schomer and Bridgeview reiterate the positions taken by Bridgeview at first notice concerning both the sound monitoring personnel qualifications and sound measurement procedures for establishing nuisance noise violation. PC 16, 18, and 19. Bridgeview also argues that bad science and misleading evidence should not be admissible in nuisance cases any more than in numeric violation cases and challenges the use of noise measurements in nuisance noise enforcement proceedings. PC 18 at 1. In addition, Dr. Schomer raises concerns about the efficacy of the Board’s rules. PC 19 at 2. The following paragraphs will summarize the comments.
 
 Sound Monitoring Personnel Qualifications. Dr. Schomer comments that the lay person taking sound measurements can make errors when taking those measurements. PC 16 at 1. According to Dr. Schomer those errors include:
 

   
1. A lay person does not understand or necessarily hear properly background noise;
2. A lay person does not understand the role that wind induced noise makes on measurements;
3. A lay person does not understand the role that reflecting surfaces have on noise measurements. PC 16 at 2-3.
   
The “implications” of errors in measurement in Dr. Schomer’s opinion is that the evidence of noise emissions measured by a lay person is inherently unreliable. PC 16 at 3.
Dr. Schomer argues that the Board has a viable option in terms of identifying qualified noise professionals. PC 16 at 5. Dr. Schomer urges the Board to require that measurements of noise emissions be supervised by an individual who is a “Member, Board Certified, of the Institute of Noise Control Engineering of the USA” (Institute). Id. Dr. Schomer states that the Institute is a non-profit technical society and certification requires education, several years experience, passing a rigorous 8-hour exam, and periodic professional activities to maintain certification. Id.
Dr. Schomer notes that as a lessor option, the Board could require that a member of the Institute, who is also a full member of the Acoustical Society of America, supervise noise emission measurements. PC 16 at 6. Dr. Schomer opines that with such a requirement the individual supervising the measurements “has some working knowledge of the mathematics of acoustics and of acoustical measurement.” Id.

 In Bridgeview’s final comment, Dr. Schomer states that there is one way to correctly perform measurements, but a multitude of ways to mess up measurements. PC 19 at 1. Dr. Schomer argues that ANSI procedures must be followed using ANSI approved methods and instrumentation. Id. Dr. Schomer opines that many measurement devices sold at stores are worthless and best used for indoor measurements. Id.
 
 Sound Measurement Procedures for Establishing Nuisance Noise Violation. Dr. Schomer states that standards exist so that within a reasonable degree of scientific certainty, two people can perform the same measurements under identical conditions and get the similar results. PC 16 at 4. Dr. Schomer asserts that unless standards are followed, the Board has no valid scientific method by which to assess the accuracy of data submitted to the Board. PC 16 at 4-5. Dr. Schomer opines that the Board should use this rulemaking to make the standards for accurate measurements clear for both numeric and nuisance cases. PC 16 at 5.
 

    
Efficacy of the Rules. Dr. Schomer argues that allowing a lay person to make hand held A-weighted measurements does a disservice to the rules and to the noise receiver. PC 16 at 3. Dr. Schomer states that there is a trade-off between the complexity of the rules and the efficacy of the regulations. Id. Dr. Schomer notes that the Illinois rules are more complex than in many states, but as a result, Illinois’ rules are more useful and protective. Id. Dr. Schomer asserts that because measurements made with simple, hand-held A-weighted instruments fail to address the spectrum of octaves covered under Illinois regulations, the measurements give a misleading picture of the noise emissions. PC 16 at 4. Dr. Schomer opines that to the extent the Board allows such evidence to be admitted in a nuisance noise case, the entire decision making process may be tainted by misleading information. Id.
Dr. Schomer, in his comment filed for Bridgeview, asserts that poor instruments may not detect many valid nuisance noise instances. PC 19 at 2. The instruments that do not measure individual octave bands may result in missing noise at a low frequency, according to Dr. Schomer. Id. Dr. Schomer argues that the octave band nature of the Board’s rules is a positive factor and should not be “squandered” by substituting A-weighted measurements of questionable validity. Id.
Nuisance Noise Cases. Bridgeview argues the Board should take the opportunity in these rules to establish that in a nuisance complaint valid noise measurements must be used. PC 18 at 1. Bridgeview states that if noise measurements are taken in a nuisance case, the measurements should be taken as directed in Part 910. Id. Bridgeview maintains that to do otherwise is misleading to the complainant, prejudicial to the Board’s decisions, and fundamentally unfair and costly to respondents. Id.
Bridgeview argues that admitting noise emissions measurements taken by a lay person other than pursuant to the requirements of Part 910 is contrary to the Board’s responsibility for admitting scientific evidence based on Daubert v. Merrell Dow Pharmaceuticals, Inc., 501 U.S. 579 (1993). PC 18 at 2. Bridgeview asserts that the Board recognizes the legal principal articulated in Daubert but retreats froM the sound science approach in nuisance cases. Id. Bridgeview opines that allowing “quick and dirty” sound measurements to be used in nuisance cases, the Board is encouraging frivolous lawsuits. Id. Bridgeview further argues that the Board appears to be shifting the burden of proof by requiring the respondent to expose problems with the measurements. PC 18 at 3.

DISCUSSION
 

             
During the first-notice period, the comments and testimony received by the Board reiterated issues raised prior to the Board proceeding to first notice in March 2005. The issues are: (1) whether blasting operations by aggregate producers and surface coal mines should be governed by rules adopted by the Board or should the Board defer to IDNR’s regulations; and (2) whether the Board should require that noise measurements taken for presentation in a nuisance noise enforcement case should be taken pursuant to 35 Ill. Adm. Code 910. The Board will address these issues below.
Applicability of Noise Rules to Aggregate Producers and Surface Coal Mines
At first notice, the Board did make changes to the rule in response to IAAP’s comments. After consideration of the testimony and comments from IAAP and IDNR during the first-notice comment period, the Board is convinced that additional changes to the rule are warranted.
The testimony of IAAP and IDNR clearly demonstrates that IDNR has an extensive regulatory program in place that regulates the noise from blasting at facilities operated by aggregate producers and surface coal mines. Further, IDNR has an active staff that regularly oversees blasting and monitoring of the blasting at sites in Illinois. IDNR also has stringent enforcement tools for any violation of the regulations when blasting. Therefore, the Board finds that the Board can appropriately defer the regulation of noise emissions from blasting at aggregate and surface coal mines to IDNR. The Board will make changes to the rule under Sections 901.107 and 901.109 to reflect that deference.
The Board notes that IAAP’s testimony indicates that IAAP only asks the Board to defer to IDNR for blasting at the aggregate producers sites in Illinois. All other operations, such as back up beepers, ingress and egress, and daily production noise emission should be subject to the Board rules according to IAAP. In light of this, the Board limits the scope of the proposed exemption to only to impulsive sound produced by explosive blasting activities, which are regulated by IDNR in accordance with Section 6.5 and Section 3.13 of the Surface Coal Mining Land Conservation and Reclamation Act (225 ILCS 715/6.5 and 3.13 (2004)).
Applicability of Part 910 to Nuisance Noise Enforcement Cases
The Board has long held in that noise measurements may be used to substantiate or refute a nuisance noise claim. See Discovery South Group v. PCB, 275 Ill. App. 3d 547, 549, 656 N.E.2d 51, 59 (1st Dist. 1995); Charter Hall Home Owners Association v. Overland Transportation System PCB 98-81 (Oct. 1, 1998); Pawlowski v. Benchwarmers Pub, PCB 99-82 (Apr. 6, 2000); Gladys Knox and David Knox v. Turris Coal Company and AEI Resources, Inc., PCB 00-140 (Jan. 9, 2003). In the Board’s first-notice opinion and order, the Board stated:
Section 910.104 clarifies that sound pressure level measurements are not required to establish a violation of the Board’s nuisance noise standard at Section 900.102, although such measurements may be used as corroborating evidence. In light of this, the Board finds that compliance with the detailed sound measurement procedures set forth in Part 951 or the proposed Part 910 are not required for sound measurements used as corroborating evidence in a nuisance noise proceeding. The Board will assign appropriate weight to sound measurement data submitted in any nuisance noise complaint based on the information in the hearing record and in accordance with the provisions of the Act. As noted in the first first-notice opinion (Proposed New and Updated Rules for Measurement and Numerical Sound Emissions Standards; Amendments to 35 Ill. Adm. Code 901 and 910, R03-9 (July 10, 1003)), the Board believes that this approach is consistent with the Board’s precedence and case law concerning nuisance noise complaints. The Board declines to make the changes suggested by IAAP. Proposed New and Updated Rules for Measurement and Numerical Sound Emissions Standards; Amendments to 35 Ill. Adm. Code 901 and 910, R03-9, (Mar. 17, 2005).
The Board also discussed, at first notice, the request that noise measurements be supervised by an individual who is certified. The Board stated:
The Board finds that the present regulatory structure, where the Board determines the validity of sound data on a case-by-case basis in noise enforcement cases, is a more prudent approach than prescribing vague qualification requirements. The Board believes this is especially true absent a State approved licensing or certification process. Proposed New and Updated Rules for Measurement and Numerical Sound Emissions Standards; Amendments to 35 Ill. Adm. Code 901 and 910, R03-9, (Mar. 17, 2005).
The Board has carefully reviewed the arguments and concerns expressed by Bridgeview and Dr. Schomer. However, the Board is unconvinced that a change to the rule is necessary. First, as to the suggestion that the Board require compliance with Part 910 for measurement of noise emissions in a nuisance noise enforcement, the Board does not believe that change is necessary. If a complainant complies with the requirements of Part 910 when alleging a violation, then such a violation would be of the numeric standards and not a nuisance violation. The Board has long heard testimony in nuisance noise enforcement cases concerning the use of noise measurements. The Board examines that testimony and the measurements in light of the entirety of the evidence and renders a decision as to whether the noise unreasonablY interferes with the enjoyment of life. See e.g., Zivoli v. Somebody’s Bar and Restaurant, PCB 90-200 (May 21, 1992). Therefore, the Board declines to make a change to the rule.
regarding the qualifications of individual supervising the measurement of emissions, the Board is not persuaded that requiring certification by the Institute is appropriate. The Board will continue to review the noise emission measurements on a case-by-case basis and make determination based on the evidence provided.
The Board finds that the extensive record in this proceeding supports proceeding to second notice with these noise regulations. The Board further finds that the rules are technically feasible and economically reasonable. Therefore the Board will proceed to second notice.

CONCLUSION
 

 
The Board today adopts for second notice regulations concerning measurement of and standards for noise emissions in Illinois. The Board defers regulation of blasting operations at aggregate and surface coal mines to IDNR, who has an extensive regulatory scheme in place. The Board declines to alter the Board’s longstanding position on noise emission measurements in nuisance noise enforcement cases and to require measurements be supervised by a certified individual. The Board sends this proceeding to the Joint Committee on Administrative Review for second notice consideration.



ORDER
 

 The Board directs the Clerk to cause the filing of the following with the Joint Committee on Administrative Review for second notice consideration.
 

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TITLE 35: ENVIRONMENTAL PROTECTION

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SUBTITLE H: NOISE



CHAPTER I: POLLUTION CONTROL BOARD
 



PART 901



SOUND EMISSION STANDARDS AND LIMITATIONS FOR PROPERTY LINE-NOISE-SOURCES
 

Section
901.101 Classification of Land According to Use
901.102 Sound Emitted to Class A Land
901.103 Sound Emitted to Class B Land
901.104 Highly - Impulsive Sound
901.105 Impact Forging Operations
901.106 Prominent Discrete Tones
901.107 Exceptions
901.108 Compliance Dates for Part 901
901.109 Highly - Impulsive Sound from Explosive Blasting
901.110 Amforge Operational Level
901.111 Modern Drop Forge Operational Level
901.112 Wyman-Gordon Operational Level
901.113 Wagner Casting Site-Specific Operational Level (Repealed)
901.114 Moline Forge Operational Level
901.115 Cornell Forge Hampshire Division Site-Specific Operational Level
901.116 Forgings and Stampings, Inc. Operational Level
901.117 Rockford Drop Forge Company Operational Level
901.118 Atlas Forgings Division of Scot Forge Company – Franklin Park Division Operational Level
901.119 Clifford-Jacobs Operational Level
901.120 C.S. Norcross Operational Level
901.121 Vaughan & Bushnell Operational Level
   
APPENDIX A Old Rule Numbers Referenced
APPENDIX B Land-Based Classification Standards Standard Land Use Coding System  

AUTHORITY: Implementing Section 25 and authorized by Section 27 of the Environmental Protection Act [415 ILCS 5/25 and 27].
 
SOURCE: Originally filed as Part 2 of Chapter 8: Noise Pollution, effective August 10, 1973; amended at 2 Ill. Reg. 27, p. 223, effective June 26, 1978; amended at 5 Ill. Reg. 6371, effective June 1, 1981; amended at 5 Ill. Reg. 8533, effective August 10, 1981; amended at 6 Ill. Reg. 10960, effective September 1, 1982; codified at 7 Ill. Reg. 13646; amended at 7 Ill. Reg. 14519, effective October 17, 1983; amended in R83-35 at 8 Ill. Reg. 18893, effective September 25, 1984; amended in R83-33, 26, 29, 30 and R83-34 at 9 Ill. Reg. 1405, effective January 17, 1985; Section 901.105(f)(1), (2) and (3) recodified to Sections 901.110, 901.111 and 901.112 at 9 Ill. Reg. 7147; amended in R83-25, 31 and 32 at 9 Ill. Reg. 7149, effective May 7, 1985; amended in R83-7 at 11 Ill. Reg. 3136, effective January 28, 1987; amended in R04-11, at 28 Ill. Reg. 11910, effective July 30, 2004; amended in R03-9 at 30 Ill. Reg._______, effective_________.
 



Section 901.101  Classification of Land According to Use
 

     
a) The land use classification system used for the purposes of applying numeric sound standards for this Part is based on the Land-Based Classification Standards (LBCS) (Jeer, Sanjay. 2001. Land-Based Classification Standards . Online, http://www.planning.org/LBCS . American Planning Association: Chicago, Illinois). The LBCS applicable to this Part is set forth in Appendix B. 
b) a) Class A land includes shall include all land used as specified by LBCS Codes 1000 through 1340, 2410 through 2455, 5200 through 5230, 5500, 6100 through 6145, 6222, 6510 through 6530, 6568 through 6600.SLUCM Codes 110 through 190 inclusive, 651, 674, 681 through 683 inclusive, 691, 711, 762, 7121, 7122, 7123 and 921.
c) b) Class B land includes shall include all land used as specified by LBCS Codes 2100 through 2336, 2500 through 2720, 3500 through 3600, 4220 through 4243, 5100 through 5160, 5300 through 5390, 5400, 6147, 6210 through 6221, 6300 through 6320, 6400 through 6430, 6560 through 6567, 6700 through 6830, 7100 through 7380.  SLUCM Codes 397, 471 through 479 inclusive, 511 through 599 inclusive, 611 through 649 inclusive, 652 through 673 inclusive, 675, 692, 699, 7124, 7129, 719, 721, 722 except 7223, 723 through 761 inclusive except 7311, 769 through 790 inclusive, and 922.
d) c) Class C land includes shall include all land used as specified by LBCS Codes 3100 through 3440, 4120 through 4180, 4210 through 4212, 4300 through 4347, 7400 through 7450, 8000 through 8500, and 9100 through 9520. SLUCM Codes 211 through 299 inclusive, 311 through 396 inclusive, 399, 411 except 4111, 412 except 4121, 421, 422, 429, 441, 449, 460, 481 through 499 inclusive, 7223 and 7311 used for automobile and motorcycle racing, and 811 through 890 inclusive.
e) d) A parcel or tract of land used as specified by LBCS SLUCM Code 9100, 9400, or 5500 81, 83, 91, or 922, when adjacent to Class B or C land may be classified similarly by action of a municipal government having zoning jurisdiction over such land. Notwithstanding any subsequent changes in actual land use, land so classified retains shall retain such B or C classification until the municipal government removes the classification adopted by it.

(Source: Amended at 30 Ill. Reg. ____________, effective _____________)
 
Section 901.102  Sound Emitted to Class A Land
 

 
a) Except as elsewhere provided in this Part provided, no person shall cause or allow the emission of sound during daytime hours from any property-line-noise-source located on any Class A, B or C land to any receiving Class A land which exceeds any allowable octave band sound pressure level specified in the following table, when measured at any point within such receiving Class A land, provided, however, that no measurement of sound pressure levels shall be made less than 25 feet from such property-line-noise-source.
Octave Band Center Frequency (Hertz)
Allowable Octave Band Sound Pressure Levels (dB) of Sound Emitted to any Receiving Class A Land from
 
Class C Land
Class B Land
Class A Land
       
31.5
75
72
72
63
74
71
71
125
69
65
65
250
64
57
57
500
58
51
51
1000
52
45
45
2000
47
39
39
4000
43
34
34
8000
40
32
32
 
b) Except as provided elsewhere in this Part provided, no person shall cause or allow the emission of sound during nighttime hours from any property-line-noise-source located on any Class A, B or C land to any receiving Class A land which exceeds any allowable octave band sound pressure level specified in the following table, when measured at any point within such receiving Class A land, provided, however, that no measurement of sound pressure levels shall be made less than 25 feet from such property-line-noise-source.
Octave Band Center Frequency (Hertz)
Allowable Octave Band Sound Pressure Levels (dB) of Sound Emitted to any Receiving Class A Land from
 
Class C Land
Class B Land
Class A Land
       
31.5
69
63
63
63
67
61
61
125
62
55
55
250
54
47
47
500
47
40
40
1000
41
35
35
2000
36
30
30
4000
32
25
25
8000
32
25
25

(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 



Section 901.103  Sound Emitted to Class B Land
 
Except as provided elsewhere in this Part provided, no person shall cause or allow the emission of sound from any property-line-noise-source located on any Class A, B or C land to any receiving Class B land which exceeds any allowable octave band sound pressure level specified in the following table, when measured at any point within such receiving Class B land, provided, however, that no measurement of sound pressure levels shall be made less than 25 feet from such property-line-noise-source.
 
Octave Band Center Frequency (Hertz)
Allowable Octave Band Sound Pressure Levels (dB) of Sound Emitted to any Receiving Class B Land from
 
Class C Land
Class B Land
Class A Land
       
31.5
80
79
72
63
79
78
71
125
74
72
65
250
69
64
57
500
63
58
51
1000
57
52
45
2000
52
46
39
4000
48
41
34
8000
45
39
32

(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 



Section 901.104  Highly-Impulsive Sound
 
Except as provided elsewhere in this Part provided, no person shall cause or allow the emission of highly-impulsive sound from any property-line-noise-source located on any Class A, B, or C land to any receiving Class A or B land which exceeds the allowable A-weighted sound levels, measured with fast dynamic characteristic, specified in the following table when measured in accordance with the procedure of 35 Ill. Adm. Code 900.103 at any point within such receiving Class A or B land, provided, however, that no measurement of sound levels shall be made less than 25 feet from such property-line-noise-source.
 
Classification of Land on which Property-Line Noise-Source: is Located
Allowable A-weighted Sound Levels in Decibels of Highly-Impulsive Sound Emitted to Receiving Class A or B Land
  Class B Land Class A Land  
    Daytime Nighttime
Class A Land 50   47   50     47   45 37
Class B Land 57    54   50    47   45    37  
Class C Land 61    58   56     53   46 43

(Source: Amended at 30 Ill. Reg. ___________, effective __________)
 



Section 901.105  Impact Forging Operations
 
a)  For purposes of this Section, rule only the following are applicable:
 

     
1) Daytime hours means shall mean any continuous 16-hour period between 6:00 a.m. and 11:00 p.m. local time; and
2) Nighttime hours means shall mean those 8 hours between 10:00 p.m. and 7:00 a.m. which are not part of the 16 continuous daytime hours.
3) The reference time for Leq, as defined in 35 Ill. Adm. Code 900.101 is one hour.
4) New Impacting Forging Operation is that property-line-noise-source comprised of impact forging operation on which construction began after September 1, 1982.
5) Existing Impact Forging Operation is that property-line-noise-source comprised of impact forging operations which are in existence on September 1, 1982,
b) Emission Limitations for New Impact Forging Operation.

No impact forging operation shall cause or allow the emission of impulsive sound to any receiving Class A or B land which exceeds the allowable sound levels specified in the following table when measured at any point within such receiving land, provided however, that no measurement of sound levels shall be made less than 25 feet from such new impact forging operation's property-line.
 

Allowable Highly- Impulsive Sound Levels (Leq) in Decibels Emitted
To Class A or B Land from New
Impact Forging Operation
 
Class B Land
Class A Land
 
Daytime
Nighttime
59.5 Leq
53.5 Leq
48.5 Leq
c) Limitations for Existing Impact Forging Operation

No existing impact forging operation shall cause or allow the emission of highly-impulsive sound to any receiving Class A or B land which exceeds the allowable sound levels specified in the following table, when measured at any point within such receiving land, provided however, that no measurement of sound levels shall be made less than 25 feet from such existing impact forging operation's property-line, unless such forging operation is granted a permanent site specific allowable operational level pursuant to subsection subparagraph (d).
 

Allowable Highly- Impulsive Sound Levels (Leq) in Decibels Emitted
To Class A or B Land from Existing
Impact Forging Operation
 
Class B Land
Class A Land
 
Daytime
Nighttime
64.5 Leq
58.5 Leq
53.5 Leq
 
d) Site Specific Allowable Operational Level for Existing Impact Forging Operation
  
1) An existing impact forging operation which does not comply with subsection subparagraph (c) may seek a permanent site specific allowable operational level from the Board. A permanent site specific level is that level of operation allowed petitioner after review and approval by the Board and after implementation of abatement abated measures, if any, approved by the Board.
2) Any existing impact forging operation seeking a permanent site specific operational level must submit as its petition the following:
  
A) The location of the petitioner, a description of the surrounding community, and a map locating the petitioner within the community;
B) A description of the petitioner's operations, the number and size of the petitioner's forging hammers, the current hours of hammer operation, the approximate number of forgings manufactured during each of the three prior calendar years and the approximate number of hammer blows used to manufacture the forgings.

C)  A description of any existing sound abatement measure.
 

      
D) The sound levels in excess of those permitted by subsection subparagraph (c) emitted by the petitioner into the community, in 5 decibel increments measured in Leq Leq, shown on the map of the community.
E) The number of residences exposed to sound levels in excess of those permitted by subsection subparagraph (c);
F) A description of other significant sources of noise (mobile and stationary) and their location shown on the map of the community;
G) A description of the proposed operational level and proposed physical abatement measures, if any, a schedule for their implementation and their costs;
H) The predicted improvement in community sound levels as a result of implementation of the proposed abatement measures; and
I) A description of the economic and technical considerations which justify the permanent site specific allowable operational level sought by petitioner.
  
3) An existing impact forging operation seeking a permanent site specific operational level shall prepare and file its petition with the Board and Agency as applicable no later than December 1, 1983.
4) The Agency shall prepare a written evaluation regarding each petition seeking a permanent site specific operational level and shall file said evaluation within ninety (90) days following receipt of the petition with both the Board and the petitioner.

e)  Land Use Classifications Preserved
 
The land use classifications in effect within a one-mile radius of an existing impact forging operation on September 1, 1982 remains shall remain the applicable land use classification for enforcement of these rules against an existing forging operation and any future modification thereof, regardless of actual subsequent changes in land use unless such actual changes would impose less restrictive limitations on the impact forging operations.
 

f) Site-Specific Operational Levels

Each individual existing forging operation identified in Sections 901.110, 901.111 and 901.112 must comply with the site-specific operational level defined, or is otherwise subject to Section 901.105(c).
 
(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 



Section 901.106  Prominent Discrete Tones
 

  
a) No person shall cause or allow the emission of any prominent discrete tone from any property-line-noise-source located on any Class A, B or C land to any receiving Class A, B or C land, provided, however, that no measurement of one-third octave band sound pressure levels shall be made less than 25 feet from such property-line source.
b) This rule shall not apply to prominent discrete tones having a one-third octave band sound pressure level 10 or more dB below the allowable octave band sound pressure level specified in the applicable tables in Sections 901.102 through 901.104 for the octave band which contains such one-third octave band. In the application of this sub-section, the applicable numeric standard table for sound emitted from any existing property-line-noise-source to receiving Class A land, for both daytime and nighttime operations, is shall be found in Section 901.102(a).

(Source: Amended at 30 Ill. Reg. ________, effective __________)
 



Section 901.107  Exceptions
 

    
a) Sections 901.102 through 901.106 inclusive does shall not apply to sound emitted from land used as specified by LBCS Codes 1100, 6600 and 5500 SLUCM Codes 110, 140, 190, 691, and 742 except 7424 and 7425.
b) Sections 901.102 through 901.106 inclusive does shall not apply to sound emitted from emergency warning devices and unregulated safety relief valves.
c) Sections 901.102 through 901.106 inclusive does shall not apply to sound emitted from lawn care maintenance equipment and agricultural field machinery used during daytime hours. For the purposes of this sub-section, grain dryers operated off the farm are shall not be considered agricultural field machinery.
d) Sections 901.102 through 901.106 inclusive do shall not apply to sound emitted from equipment being used for construction.
 
e) Section 901.102(b) do shall not apply to sound emitted from existing property-line-noise-sources during nighttime hours, provided, however, that sound emitted from such existing property-line-noise-sources are shall be governed during nighttime hours by the limits specified in Section 901.102.
   
f) Sections 901.102 through 901.106 inclusive do shall not apply to the operation of any vehicle registered for highway use while such vehicle is being operated within any land used as specified by Section 901.101 in the course of ingress to or egress from a highway.
g) Sections 901.102 through 901.106 inclusive do shall not apply to sound emitted from land used as specified by LBCS Codes 5130 and 5140 SLUCM Codes 7223 and 7311 when used for automobile and motorcycle racing; and, any land used for contests, rallies, time trials, test runs or similar operations of any self-propelled device, and upon or by which any person is or may be transported or drawn, when such self-propelled device is actually being used for sport or recreation and is actually participating in an activity or event organized, regulated, and supervised under the sponsorship and sanction of a club, organization or corporation having national or statewide recognition; provided, however, that the exceptions granted in this subsection subparagraph do shall not apply to any automobile and motorcycle race, contest, rally, time trial, test run or similar operation of any self-propelled device if such event is started between the hours of 10:30 p.m. to 7:00 a.m., local time weekdays, or between the hours of 11:00 p.m. and 7:00 a.m., local time, weekend days.
h) Section 901.104 shall not apply to impulsive sound produced by explosive blasting activities conducted on any Class C land other than the land used as specified by LBCS Codes 8300 and 8500 SLUCN codes 852 and 854, but such operations shall be governed by Section 901.109.
 
i) Part 901 shall not apply to impulsive sound produced by explosive blasting activities, which are:
 
1) Conducted on any Class C land used as specified by LBCS Codes 8300 and 8500; and
 
2) Regulated by the Department of Natural Resources in accordance with Section 6.5 and Section 3.13 of the Surface Coal Mining Land Conservation and Reclamation Act (225 ILCS 715/6.5 and 3.13 (2004)).
 
ji) Sections 901.102 through 901.106 inclusive, do shall not apply to sound emitted from snowmobiles.

(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 



Section 901.108  Compliance Dates for Part 901
 

     
a) Except as provided in subsections subparagraphs (g), (i), and (j), every owner or operator of a new property-line-noise-source must shall comply with the standards and limitations of this Part on and after August 10, 1973.
b) Except as otherwise provided in this rule, every owner or operator of an existing property-line-noise-source must shall comply with the standards and limitations of this Part on and August 10, 1974.
c) Every owner or operator of an existing property-line-noise-source who emits sound which exceeds any allowable octave band sound pressure level of Section 901.102 or 901.103 by 10 dB or more in any octave band with a center frequency of 31.5 Hertz, 63 Hertz or 125 Hertz must shall comply with the standards and limitations of this Part on and after February 10, 1975.
d) Except as provided in subsections subparagraphs (g) and (h), every owner or operator of an existing property-line-noise-source required to comply with Section 901.104 must shall comply with the standards and limitations of this Part on and after February 10, 1975.
e) Every owner or operator of an existing property-line-noise-source required to comply with Section 901.106 must shall comply with the standards and limitations of this Part on and after February 10, 1975.

f)  Repealed
 

 
f)g) Every owner or operator of Class C land now and hereafter used as specified by LBCS Code 4120 SLUCM Code 4112  shall will have until August 10, 1976 to bring the sound from railroad car coupling in compliance with Section 901.104.
 
g)h) Existing impact forging operations as defined in Section 901.105 which do not seek permanent site specific allowable operational levels must shall comply with Section 901.105 by December 1, 1983. Those seeking permanent site specific allowable operational levels pursuant to Section 901.105(d) must shall comply as of the effective date of the site specific rule granted or denied.
 
h)i) Every owner or operator of Class C land now or hereafter used as specified by LBCS Code 3310 SLUCM Code 291 must shall comply with the standards and limitations of this Part on August 10, 1975.
 
i)j) Every owner or operator of Class C land now or hereafter used as specified by LBCS Code 5130 and 5140 SLUCM Code 7223 and 7311 when used for automobile and motorcycle racing shall must comply with the standards and limitations of this Part on February 10, 1976.

(Source: Amended at 30 Ill. Reg. ____________, effective __________)
 



Section 901.109  Highly-Impulsive Sound From Explosive Blasting
 

 
a) During the daytime hours that cover the period,after sunrise and before sunset, no person shall cause or allow any explosive blasting conducted on any Class C land other than land used as specified by LBCS Codes 8300 and 85200 SLUCM Codes 852 and 854 so as to allow the emission of sound to any receiving Class A or B land which exceeds the allowable outdoor C-weighted sound levels, measured with the slow dynamic characteristic, specified in the following table, when measured at any point, of reasonable interference with the use of such receiving Class A or B land.

Allowable Outdoor C-Weighted
Sound Exposure Levels in Decibels of Explosive
Blasting Sounds Emitted to Receiving
Class A or B Land from Any Class C Land other than Land
Used as Specified by LBCS Code 8300 or 8500 SLUCM Code 852 or 854
 
Receiving Class A Land
Receiving Class B Land
109 107
114 112
The allowable sound exposure level limits in the above table must be lowered by three decibels (3 dB) for each doubling of the number of blasts during the day or night.
 

 
b) Compliance with outdoor peak sound pressure level limits in the following table shall constitute prima facie level limits of this rule when measured on such receiving Class A or B land.

Equivalent Maximum Sound Pressure Level (Peak) Limits in Decibels
 
Lower Frequency Limit of Measuring System for Flat Response, a Variation from Linear Response of + or - 3dB (Hz)
Receiving Class A Land (dB)
Receiving Class B Land (dB)
     
< o 0.1
135
140
< 2.0 but > 0.1
1332
1337
< 6.0 but greater than 2.0
130
135
     

The allowable equivalent maximun sound pressure level limits in the above table
shall be lowered by two decibels (2 dB) for each doubling of the number of blasts
during the day or night.
 

  
c) During the period defined by both the beginning of the nighttime hours (10:00 pm) or sunset, whichever occurs earlier and the ending of the nighttime hours (7:00 am) or , after sunset and before sunrise, whichever occurs later, the allowable sound level limits in subsections subparagraphs (a) and (b) must shall be reduced by 10 decibels decibles except in emergency situations where rain, lightning, other atmospheric conditions, or operator or public safety requires unscheduled nighttime hour explosive blasting.
d) Persons causing or allowing explosive blasting to be conducted on any Class C land other than land used as specified by LBCS Code 8300 or 8500 SLUCM code 852 or 854  must shall notify the local public of such blasting prior to its occurrence, except when emergency situations require unscheduled blasting, by publication of a blasting schedule, identifying the work days or dates and time periods when explosives are expected to be detonated, at least every three months in a newspaper of general circulation in the locality of the blast site.

(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 



Section 901.110  Amforge Operational Level
 
Amforge Division of Rockwell International located at 119th Street, Chicago, Illinois must shall:
 
a)  Operate only ten forging hammers at any one time; and
 

  
b) Operation of its forging hammers is limited to the hours of 7:00 a.m. through 11:00 p.m., with occasional operations beginning at 6:00 a.m. and ending at midnight, Monday through Saturdays; and
c) Install sound Sound absorptive materials shall be installed on each of the forging hammer structures as each is routinely overhauled, but no later than January 1, 1987.

(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 



Section 901.111  Modern Drop Forge Operational Level
 
Modern Drop Forge Company located at 139th Street and Western Avenue in Blue
Island, Illinois must shall:
 
a)  Operate only twenty-one forging hammers at any one time; and
 

 
b) Operate its forging hammers only during the hours of 6:00 a.m. through midnight, Mondays through Fridays, and 6:30 a.m. until 7:30 p.m. on Saturdays.

(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 



Section 901.113  Wagner Casting Site-Specific Operational Level (Repealed)
 
Wagner Casting Company and future owners of the forging facility located at the southeast corner of Sangamon and Jasper Streets in Decatur, Illinois, must comply with the following site-specific operational level or are otherwise subject to Section 901.105(c):
 
a)  Shall operate no more than nine forging hammers at any one time; and
 

 
b) Shall operate its forging hammers only between the hours of 5:00 a.m. Monday through 9:00 p.m. Saturday.

(Source: Repealed at 30 Ill. Reg. __________, effective ___________)
 
 



Section 901.118  Atlas Forgings Division of Scot Forge Company – Franklin Park Division Operational Level
 
Atlas Forge Division of Scot Forge and future owners of the forging facility located at 9394 W. Belmont Avenue, Franklin Park 1501 South 55th Court, Cicero, Illinois, must shall comply with the following site-specific operational level:
 
a)  Operate no more than seven three forging hammers at any one time; and
 

 
b) Operate its forging hammers only between the hours of 6:00 a.m. and 6:00 p.m. Monday through Saturday.

(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 



Section 901.121  Vaughan & Bushnell Operational Level
 
Vaughan & Bushnell Manufacturing Company and the future owners of the forging facility located at the intersection of Davis and Main Streets, Bushnell, Illinois, must shall comply with the following site-specific operational level:
 
a)  Operate no more than ten hammers at any one time; and
 

 
b) Operate its forging hammers only between the hours of 6:00 a.m. and 1:30 a.m. p.m. Monday through Saturday.

(Source: Amended at 30 Ill. Reg. __________, effective ___________)
 
 
Section 901.APPENDIX B  Land-Based Classification Standards and Corresponding 35 Ill. Adm. Code 901 Land Classes Standard Land Use Coding System
 
LBCS
     
Main Category
Function Code
  Description
35 IAC 901 Land Class
         
Residence or accommodation functions
1000   Residence or accommodation functions
A
  1100   Private household  
  1200   Housing services for the elderly
­
 
1210
  Retirement housing services
½
 
1220
  Congregate living services
½
 
1230
  Assisted-living services
½
 
1240
  Life care or continuing care services
½
 
1250
  Skilled-nursing services
½
  1300   Hotels, motels, or other accommodation services
½
 
1310
  Bed and breakfast inn
½
 
1320
  Rooming and boarding
¯
 
1330
  Hotel, motel, or tourist court  
 
1340
  Casino hotel
 
A
General sales or services
2000   General sales or services  
  2100   Retail sales or service
B
 
2110
  Automobile sales or service establishment  
 
2111
  Car dealer
­
 
2112
  Bus, truck, mobile homes, or large vehicles
½
 
2113
  Bicycle, motorcycle, ATV, etc.
½
 
2114
  Boat or marine craft dealer
½
 
2115
  Parts, accessories, or tires
½
 
2116
  Gasoline service
½
 
2120
  Heavy consumer goods sales or service
½
 
2121
  Furniture or home furnishings
½
 
2122
  Hardware, home centers, etc.
½
 
2123
  Lawn and garden supplies
½
 
2124
  Department store, warehouse club or superstore
½
 
2125
  Electronics and Appliances
½
 
2126
  Lumber yard and building materials
½
 
2127
  Heating and plumbing equipment
½
 
2130
  Durable consumer goods sales and service
½
 
2131
  Computer and software
½
 
2132
  Camera and photographic supplies
½
 
2133
  Clothing, jewelry, luggage, shoes, etc.
½
 
2134
  Sporting goods, toy and hobby, and musical instruments
½
 
2135
  Books, magazines, music, stationery
½
 
2140
  Consumer goods, other
½
 
2141
  Florist
½
 
2142
  Art dealers, supplies, sales and service
½
 
2143
  Tobacco or tobacconist establishment
½
 
2144
  Mail order or direct selling establishment
½
 
2145
  Antique shops, flea markets, etc.
½
 
2150
  Grocery, food, beverage, dairy, etc.
½
 
2151
  Grocery store, supermarket, or bakery
½
 
2152
  Convenience store
½
 
2153
  Specialty food store
½
 
2154
  Fruit and vegetable store
½
 
2155
  Beer, wine, and liquor store
½
 
2160
  Health and personal care
½
 
2161
  Pharmacy or drug store
½
 
2162
  Cosmetic and beauty supplies
½
 
2163
  Optical
½
  2200   Finance and Insurance
½
 
2210
  Bank, credit union, or savings institution
½
 
2220
  Credit and finance establishment
½
 
2230
  Investment banking, securities, and brokerages
½
 
2240
  Insurance-related establishment
½
 
2250
  Fund, trust, or other financial establishment
½
  2300   Real estate, and rental and leasing
½
 
2310
  Real estate services
½
 
2320
  Property management services
½
 
2321
  Commercial property-related
½
 
2322
  Rental housing-related
½
 
2330
  Rental and leasing
½
 
2331
  Cars
½
 
2332
  Leasing trucks, trailers, RVs, etc.
½
 
2333
  Recreational goods rental
½
 
2334
  Leasing commercial, industrial machinery, and equipment
¯
 
2335
  Consumer goods rental  
 
2336
  Intellectual property rental (video, music, software, etc.)
B
  2400   Business, professional, scientific, and technical services  
 
2410
  Professional services
A
 
2411
  Legal services  
 
2412
  Accounting, tax, bookkeeping, payroll services
­
 
2413
  Architectural, engineering, and related services
½
 
2414
  Graphic, industrial, interior design services
½
 
2415
  Consulting services (management, environmental, etc.)
½
 
2416
  Research and development services (scientific, etc.)
½
 
2417
  Advertising, media, and photography services
½
 
2418
  Veterinary services
½
 
2420
  Administrative services
½
 
2421
  Office and administrative services
½
 
2422
  Facilities support services
½
 
2423
  Employment agency
½
 
2424
  Business support services
½
 
2425
  Collection agency
½
 
2430
  Travel arrangement and reservation services
½
 
2440
  Investigation and security services
½
 
2450
  Services to buildings and dwellings
½
 
2451
  Extermination and pest control
½
 
2452
  Janitorial
½
 
2453
  Landscaping
¯
 
2454
  Carpet and upholstery cleaning  
 
2455
  Packing, crating, and convention and trade show services
A
    2500   Food services
B
 
2510
  Full-service restaurant  
 
2520
  Cafeteria or limited service restaurant
­
 
2530
  Snack or nonalcoholic bar
½
 
2540
  Bar or drinking place
½
 
2550
  Mobile food services
½
 
2560
  Caterer
½
 
2570
  Food service contractor
½
 
2580
  Vending machine operator
½
  2600   Personal services
½
  2700   Pet and animal sales or service (except veterinary)
¯
 
2710
  Pet or pet supply store  
 
2720
  Animal and pet services
 
B
 
Manufacturing and wholesale trade
3000   Manufacturing and wholesale trade  
  3100   Food, textiles, and related products
C
 
3110
  Food and beverages  
 
3120
  Tobacco manufacturing establishment
­
 
3130
  Textiles
½
 
3140
  Leather and allied products
½
  3200   Wood, paper, and printing products
½
 
3210
  Wood products establishment
½
 
3220
  Paper and printing materials
½
 
3230
  Furniture and related products
½
  3300   Chemicals, and metals, machinery, and electronics manufacturing
½
½
 
3310
  Petroleum and coal products
½
 
3320
  Chemicals, plastics, and rubber products
½
 
3330
  Nonmetallic mineral products
½
 
3340
  Primary metal manufacturing
½
 
3350
  Machinery manufacturing
½
 
3360
  Electrical equipment, appliance, and components manufacturing
½
½
 
3370
  Transportation equipment, automobiles, etc.
½
  3400   Miscellaneous manufacturing
½
 
3410
  Jewelry and silverware
½
 
3420
  Dolls, toys, games, and musical instruments
¯
 
3430
  Office supplies, inks, etc.  
 
3440
  Signs
C
  3500   Wholesale trade establishment
B
 
3510
  Durable goods
­
 
3520
  Nondurable goods
¯
  3600   Warehouse and storage services
 
B
 
Transportation, communication, information, and utilities
4000   Transportation, communication, information, and utilities  
  4100   Transportation services  
 
4110
  Air transportation
U
 
4111
  Air passenger transportation  
 
4112
  Air freight transportation
­
 
4113
  Airport and support establishment
¯
 
4114
  Aircraft and accessories  
 
4115
  Other air transportation (including scenic, balloon, etc.)
U
 
4120
  Rail transportation
C
 
4121
  Rail passenger transportation  
 
4122
  Rail freight transportation
­
 
4123
  Rail transportation support establishment
½
 
4130
  Road, ground passenger, and transit transportation
½
 
4131
  Local transit systems-mixed mode
½
 
4132
  Local transit systems-commuter rail
½
 
4133
  Local transit systems-bus, special needs, and other motor vehicles
½
½
 
4134
  Interurban, charter bus, and other similar establishments
½
 
4135
  School and employee bus transportation
½
 
4136
  Special purpose transit transportation (including scenic, sightseeing, etc.)
½
½
 
4137
  Taxi and limousine service
½
 
4138
  Towing and other road and ground services
½
 
4140
  Truck and freight transportation services
½
 
4141
  General freight trucking, local
½
 
4142
  General freight trucking, long-distance
½
 
4143
  Freight trucking, specialized (used household and office goods)
½
½
 
4144
  Freight trucking, specialized (except used goods)
½
 
4150
  Marine and water transportation
½
 
4151
  Marine passenger transportation
½
 
4152
  Marine freight transportation
½
 
4153
  Marine port and harbor operations
½
 
4154
  Marine cargo handling and dry dock services
½
 
4155
  Marine navigational and other services
½
 
4160
  Courier and messenger services
¯
 
4170
  Postal services  
 
4180
  Pipeline transportation
C
  4200   Communications and information  
 
4210
  Publishing
C
 
4211
  Newspapers, books, periodicals, etc.
C
 
4212
  Software publisher
C
 
4220
  Motion pictures and sound recording
B
 
4221
  Motion picture and video production, publishing, and distribution
 
­
 
4222
  Motion picture viewing and exhibition services
½
 
4223
  Sound recording, production, publishing, and distribution
½
 
4230
  Telecommunications and broadcasting
½
 
4231
  Radio and television broadcasting
½
 
4232
  Cable networks and distribution
½
 
4233
  Wireless telecommunications
½
 
4234
  Telephone and other wired telecommunications
½
 
4240
  Information services and data processing industries
½
 
4241
  Online information services
¯
 
4242
  Libraries and archives  
 
4243
  News syndicate
B
  4300   Utilities and utility services
C
 
4310
  Electric power  
 
4311
  Hydroelectric
­
 
4312
  Fossil
½
 
4313
  Nuclear
½
 
4314
  Alternative energy sources
½
 
4320
  Natural gas, petroleum, fuels, etc.
½
 
4330
  Water, steam, air conditioning supply
½
 
4331
  Drinking water
½
 
4332
  Irrigation and industrial water supply
½
 
4333
  Air conditioning and steam supply
½
 
4340
  Sewer, solid waste, and related services
½
 
4341
  Hazardous waste collection
½
 
4342
  Hazardous waste treatment and disposal
½
 
4343
  Solid waste collection
½
 
4344
  Solid waste combustor or incinerator
½
 
4345
  Solid waste landfill
½
 
4346
  Waste treatment and disposal
¯
 
4347
  Septic tank and related services
 
 
C
Arts, entertainment, and recreation
5000   Arts, entertainment, and recreation  
  5100   Performing arts or supporting establishment
B
 
5110
  Theater, dance, or music establishment  
 
5120
  Sports team or club
­
 
5130
  Racetrack establishment
½
 
5140
  Promoter of performing arts, sports, and similar events
¯
 
5150
  Agent for management services  
 
5160
  Independent artist, writer, or performer
B
  5200   Museums and other special purpose recreational institutions
A
 
5210
  Museum
­
 
5220
  Historical or archeological institution
¯
 
5230
  Zoos, botanical gardens, arboreta, etc.
A
  5300   Amusement, sports, or recreation establishment
B
 
5310
  Amusement or theme park establishment  
 
5320
  Games arcade establishment
­
 
5330
  Casino or gambling establishment
½
 
5340
  Miniature golf establishment
½
 
5350
  Skiing
½
 
5360
  Marina or yachting club facility operators
½
 
5370
  Fitness, recreational sports, gym, or athletic club,
½
 
5380
  Bowling, billiards, pool, etc.
¯
 
5390
  Skating rinks, roller skates, etc.  
  5400   Camps, camping, and related establishments
B
  5500   Natural and other recreational parks
 
A
Education, public admin., health care, and other inst.
6000   Education, public admin., health care, and other inst.  
  6100   Educational services  
 
6110
  Nursery and preschool
A
 
6120
  Grade schools  
 
6121
  Elementary
­
 
6122
  Middle
½
 
6123
  Senior
½
 
6124
  Continuance
½
 
6125
  Alternate education services
½
 
6126
  Adult education services
½
 
6130
  Colleges and universities
½
 
6140
  Technical, trade, and other specialty schools
½
 
6141
  Beauty schools
½
 
6142
  Business management
½
 
6143
  Computer training
¯
 
6144
  Driving education  
 
6145
  Fine and performing arts education
A
 
6146
  Flight training
U
 
6147
  Sports and recreation education
B
  6200   Public administration  
 
6210
  Legislative and executive functions
B
 
6220
  Judicial functions
B
 
6221
  Courts
B
 
6222
  Correctional institutions
A
  6300   Other government functions
B
 
6310
  Military and national security  
 
6320
  Space research and technology
­
  6400   Public Safety
½
 
6410
  Fire and rescue
¯
 
6420
  Police  
 
6430
  Emergency response
B
  6500   Health and human services  
 
6510
  Ambulatory or outpatient care services
A
 
6511
  Clinics  
 
6512
  Family planning and outpatient care centers
­
 
6513
  Medical and diagnostic laboratories
½
 
6514
  Blood and organ banks
¯
 
6520
  Nursing, supervision, and other rehabilitative services  
 
6530
  Hospital
A
 
6560
  Social assistance, welfare, and charitable services
B
 
6561
  Child and youth services  
 
6562
  Child day care
­
 
6563
  Community food services
½
 
6564
  Emergency and relief services
½
 
6565
  Other family services
¯
 
6566
  Services for elderly and disabled  
 
6567
  Veterans affairs
B
 
6568
  Vocational rehabilitation
A
  6600   Religious institutions
A
  6700   Death care services
B
 
6710
  Funeral homes and services  
 
6720
  Cremation services and cemeteries
­
  6800   Associations, nonprofit organizations, etc.
½
 
6810
  Labor and political organizations
½
 
6820
  Business associations and professional membership organizations
¯
 
6830
  Civic, social, and fraternal organizations
 
B
Construction-related businesses
7000   Construction-related businesses  
  7100   Building, developing, and general contracting
B
 
7110
  Residential construction  
 
7120
  Land development and subdivision
­
 
7130
  Industrial, commercial and institutional building construction
½
    7200   Machinery related
½
 
7210
  Building equipment and machinery installation contractors
½
 
7220
  Excavation contractor
½
 
7230
  Water well drilling contractor
½
 
7240
  Wrecking and demolition establishment
½
 
7250
  Structural steel erection contractor
½
  7300   Special trade contractor
½
 
7310
  Carpentry, floor, and tile contractor
½
 
7320
  Concrete contractor
½
 
7330
  Electrical contractor
½
 
7340
  Glass and glazing contractor
½
 
7350
  Masonry and drywall contractors
½
 
7360
  Painting and wall covering
¯
 
7370
  Plumbing, heating, and air-conditioning  
 
7380
  Roofing, siding, and sheet metal contractors
B
  7400   Heavy construction
C
 
7410
  Highway and street construction;  
 
7420
  Bridge and tunnel construction
­
 
7430
  Water, sewer, and pipeline construction
¯
 
7440
  Power lines, communication and transmission lines  
 
7450
  Industrial and other nonbuilding construction
 
C
Mining and extraction establishments
8000   Mining and extraction establishments
C
    8100   Oil and natural gas  
  8200   Metals (iron, copper, etc.)
­
  8300   Coal
¯
  8400   Nonmetallic mining  
  8500   Quarrying and stone cutting establishment
 
C
Agriculture, forestry, fishing and hunting
9000   Agriculture, forestry, fishing and hunting  
  9100   Crop production
C
 
9110
  Grain and oilseed  
 
9111
  Wheat
­
 
9112
  Corn
½
 
9113
  Rice
½
 
9114
  Soybean and oilseed
½
 
9115
  Dry pea and bean
½
 
9120
  Vegetable farming or growing services
½
 
9130
  Fruits and trees
½
 
9140
  Greenhouse, nursery, and floriculture
½
 
9141
  Food crops grown under cover
½
 
9142
  Nursery and tree production
½
 
9143
  Floriculture production
½
 
9150
  All other crops
½
 
9151
  Tobacco crop
½
 
9152
  Cotton crop
½
 
9153
  Sugarcane crop
½
 
9154
  Hay
½
 
9155
  Peanut crop
½
  9200   Support functions for agriculture
½
 
9210
  Farm and farm labor management services
½
 
9220
  Spraying, dusting, and other related services
½
 
9230
  Crop harvesting and post harvest crop activities (including drying, siloing, etc.)
½
½
 
9240
  Cotton ginning, grist milling, etc.
½
  9300   Animal production including slaughter
½
 
9310
  Cattle ranch and crops
½
 
9311
  Beef cattle ranch establishments
½
 
9312
  Cattle feedlot establishment
½
 
9320
  Dairy cattle and milk production
½
 
9330
  Hog and pig farm
½
 
9340
  Poultry and egg production and hatcheries
½
 
9350
  Sheep and goat farming establishments
½
 
9360
  Fish hatcheries, fisheries, and aquaculture
½
 
9370
  All other animal production
½
 
9371
  Apiculture (bees, wax, and related operations)
½
 
9372
  Horse and equine production
½
 
9373
  Fur-bearing animal production
½
 
9380
  Support functions for animal production
½
  9400   Forestry and Logging
½
 
9410
  Logging
½
 
9420
  Forest nurseries
½
 
9430
  Support functions for forestry
½
  9500   Fishing, hunting and trapping, game preserves
½
 
9510
  Fishing
¯
 
9520
  Hunting and trapping, game retreats, game and fishing preserves
C
  9900   Unclassifiable function
U
 
9910
  Not applicable to this dimension
­
 
9990
  To be determined
¯
 
9999
  To be determined
 
U

 

Back to top

     
APPENDIX B
STANDARD LAND USE CODING SYSTEM
U.S. Department of Transportation
Federal Highway Administration
Reprinted 1969
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
LEVELS
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
             
11 Household units.110Household units.1100Household units.2----A
12 Group quarters.121Rooming and boarding houses.1210Rooming and boarding houses.3 7021
122 Membership lodgings.1221Fraternity and sorority houses.4Incl. 7041
1229 Other membership lodgings, NEC.5 Incl. 7041
123 Residence halls or dormitories.1231Nurses’ homes.----
1232 College dormitories.----
1239 Other residence halls or dormitories,----
NEC.
124 Retirement homes and orphan-1241Retirement homes.----
ages. 1242Orphanages.----
125 Religious quarters.1251Convents.----
1252 Monasteries.----
1253 Rectories.----
1259 Other religious quarters, NEC.----
129 Other group quarters, NEC.1290Other group quarters, NEC.----
13 Residential hotels.130Residential hotels.1300Residential hotels.6Incl. 7011
14 Mobile home parks or courts.140Mobile home parks or courts.1400Mobile home parks or courts. 7031
15 Transient lodgings.151Hotels, tourist courts, and motels.1510Hotels, tourist courts, and motels. 7011
159 Other transient lodgings, NEC.1590Other transient lodgings, NEC.7
19 Other residential, NEC.190Other residential, NEC.1900Other residential, NEC.----  A
FOOTNOTES
 1The SIC codes are listed for purposes of reference. They are the 3Code 1210----”Rooming and boarding houses” are those that have
   
codes in the SIC system that most nearly correspond to the 4-digit 5 or more persons renting rooms, with or without board, and not re-
land use activity indicated. (See ch. III, Sec. A3, “The Use of Stand- lated to the had or person in charge. Where there are less than 5
and Industrial Classification Nomenclature.”) A dash indicates that roomers, the total quarters are considered as one “Household unit”
there is no corresponding SIC code. and is coded 1100.
 2Code 1100--”Household units” are defined as a house, and apart- 4"Incl. 7041" is an abbreviation which indicates that the 4-digit
ment, or other group of rooms, or a single room that is intended for land use activity category is only one of several categories of establish-
occupancy as separate living quarters. Occupants of “Household ments that are included under SIC code 7041.
units” do not live and eat with other persons in the structure (such as   5"NEC” is an abbreviation for “not elsewhere coded.”
in a boarding house), and there is either (1) direct access from the   6Code 1300--”Residential hotels” are those that have 75 percent or
outside or through a common hall, or (2) there is a kitchen or cooking more of the available accommodations occupied by permanent guests
equipment for the exclusive use of the occupants of the unit. The (i.e., persons who reside more than 30 days). Hotels with less than
occupants may be a family, a group of unrelated persons, or a person 75 percent are included under code 15, “Transient lodgings.”
living alone. Mobile homes not in “Mobile home parks or courts”   7Code 1590--”Other transient lodgings, NEC” includes such estab-
(code 14), but resting on a permanent type of foundation (e.g., a brick lishments as the YMCA, YWCA, and YMHA when 50 percent or
or concrete block foundation) are included as well as units that are more of the floor area is devoted to lodging and associated activities
vacant or that are used on a seasonal basis. Farm homes are also in- and when less than 75 percent of the accommodations are occupied by
cluded under “household units” and should be identified separately permanent guests. If 75 percent or more of the guests are permanent,
from the remainder of the farm which is coded under “Agriculture,” use code 1300. If 50 percent or more of the floor area is devoted to
code 81. recreational activity, use code 7424, “Recreation centers (general).”
                               
*”Land Class” refers to Rule 201 Classifications. “A” denotes a
Class A Land, “B” denotes a Class B Land and “C” denotes a
Class C Land. “U” denotes a Land unclassified in rule 201.
(Added by IEPA.)
B-1
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
           
21 Food and kindred prod-211Meat products -- manufacturing.2111Meat packing -- manufacturing.2011  C
ucts--manufacturing. 2112Sausages and other prepared meat 2013
products--manufacturing.
2113 Poultry and small game dressing and2015
packing.
212 Dairy products--manufacturing.2121Creamery butter--manufacturing.2021
2122 Cheese, natural and processed.2022
2123 Condensed and evaporated milk--2023
manufacturing.
2124 Ice cream and frozen desserts--2024
manufacturing.
2125 Fluid milk processing.2026
213 Canning and preserving of fruits,2131Canning and curing seafoods.2031
vegetables, and seafoods. 2132Canning specialty foods.2032
2133 Canning fruits, vegetables, preserves,2033
jams, and jellies.
2134 Drying and dehydrating fruits and 2034
vegetables.
2135 Pickling fruits and vegetables; vege-2035
table sauces and seasonings; salad
dressings--manufacturing.
2136 Fresh or frozen packaged fish and 2036
seafoods.
2137 Frozen fruits, fruit juices, vegetables,2037
and specialities.
214 Grain mill products--manufactur-2141Flour and other grain mill products.2041
ing. 2142Preparing feeds for animals and fowls.2042
2143 Cereal preparations.2043
2144 Rice milling.2044
2145 Blending and preparing flour.2045
2146 Wet corn milling.2046
215 Bakery products--manufacturing.2150Bakery products--manufacturing.205
216 Sugar--manufacturing.2160Sugar--manufacturing.206
217 Confectionery and related prod-2171Candy and other confectionery prod-2071
ucts--manufacturing. ucts--manufacturing.
2172 Chocolate and cocoa products--2072
manufacturing.
2173 Chewing gum--manufacturing.2073
218 Beverage--manufacturing.2181Malt liquors--manufacturing.2082
2182 Malt--manufacturing.2083
2183 Wine, brandy, and brandy spirits--2084
manufacturing.
2184 Distilling, rectifying, and blending2085
liquors.
2185 Bottling and canning soft drinks and2086
carbonated waters.
2186 Flavor extracts and flavoring sirups2087
manufacturing, NEC.
219 Other food preparations and kin-2191Cottonseed oil milling.2091
dred products manufacturing, 2192Soybean oil milling.2092
NEC. 2193Vegetable oil milling (except cotton-2093
seed and soybean).
2194 Animal and marine fats and oils (in-2094
cluding grease and tallow)--manu-
facturing.
2195 Roasting coffee and coffee products--2095
manufacturing.
2196 Shortening, table oils, margarine,2096
and other edible fats and oils--
manufacturing.
2197 Ice--manufacturing2097
2198 Macaroni, spaghetti, vermicelli, and 2098
noodles--manufacturing.
2199 Other food preparations and kindred2099C
products manufacturing, NEC.
B-2
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
 
22 Textile mill products--manu-221Broad and narrow woven fabrics2210Broad and narrow woven fabrics and221,222,2239  C
facturing. and other small wares (cotton, other small wares (cotton, manmade and 224
manmade fibers, silk, and wool)-- fibers, silk, and wool)--manufacturing.
manufacturing.
                 
222 Knit goods--manufacturing.2220Knit goods--manufacturing.225
223 Dyeing and finishing of textiles2230Dyeing and finishing of textiles (ex-226
(except wool fabrics and knit cept wool fabrics and knit goods).
goods.
224 Floor coverings (rugs and carpets)2240Floor coverings (rugs and carpets)--227
manufacturing. manufacturing.
225 Yarns and threads--manufacturing.2250Yarns and threads--manufacturing.228
229 Other textile goods manufacturing,2291Felt goods (except woven felts and2291
NEC. hats)--manufacturing.
2292 Lace Goods--manufacturing.2292
2293 Padding and upholstery filling--2293
manufacturing.
2294 Processing waste and recovering fibers2294
and flock.
2295 Artificial leather and oil cloth manu-2295
facturing and other impregnating and
coating fabrics (except rubberizing).
2296 Tire cording and fabric--manufacturing.2296
2297 Wool scouring, worsted combing, and 2297
towing to top.
2299 Other textile goods manufacturing,2299
NEC.
23 Apparel and other finished231Men’s, youths’ and boys’ suits,2310Men’s, youth’s, and boys’ suits, coats,231
products made from fab-    coats, and overcoats--manufac- and overcoats--manufacturing.
rics, leather, and similar turing.
materials-- manufacturing.
232 Men’s, youths’, and boys’ furnish-2320Men’s, youths’, and boys’ furnishings,232
ings, work clothing, and allied work clothing, and allied garments--
garments--manufacturing. manufacturing.
233 Women’s, misses’, juniors’, girls’,2330Women’s, misses’, juniors’, girls’,233 and
children’s, and infants’ outerwear-- children’s, and infants’ outerwear--236
manufacturing. manufacturing.
234 Women’s, misses’, children’s, and2340Women’s, misses’, children’s, and234
infants’ undergarments--manufact- infants’ undergarments--manufacturing.
uring.
235 Hats, caps, and millinery-manu-2350Hats, caps, and millinery--manufac-235
facturing. turing.
236 Leather and leather products--2361Leather tanning and finishing.3111
manufacturing. 2362Industrial leather belting and packing--3121
manufacturing.
2363 Boot and shoe cut stock and findings--3131
manufacturing.
2364 Footwear (except rubber)--manufacturing.314
2365 Leather gloves and mittens-manufacturing.315
2366 Luggage--manufacturing.316
2367 Handbags and other personal leather317
goods--manufacturing.
2369 Other leather products manufacturing,319
NEC.
237 2370Fur goods--manufacturing.237C
B-3
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
  
23 Apparel and other finished238Miscellaneous apparel and acces-2381Dress and work gloves (except knit2381  C
products made from fab- sories--manufacturing. and all leather)--manufacturing.
rics, leather, and similar 2382Robes and dressing gowns-manu-2384
materials--manufacturing-- facturing.
Continued 2383Raincoats and other waterproof outer2385
garments--manufacturing.
2384 Leather and sheep lined clothing--2386
manufacturing.
2385 Apparel belts--manufacturing.2387
2389 Other miscellaneous apparel and ac-2389
cessory manufacturing, NEC.
239 Other fabricated textile products2391Curtains and draperies--manufac-2391
manufacturing, NEC. turing.
2392 House furnishings (except curtains2392
and draperies)--manufacturing.
2393 Textile bags--manufacturing.2393
2394 Canvas products--manufacturing.2394
2395 Pleating, decorative and novelty2395
stitching and tucking for the trade.
2396 Apparel findings and related prod-2396
ucts--manufacturing.
2399 Other fabricated textile products2397 and
manufacturing, NEC. 2399
24 Lumber and wood prod-241Logging camps and logging con-2410Logging camps and logging contrac-241
    
ucts (except furniture)-- tractors. tors.
manufacturing.
242 Sawmills and planing mills.2421Sawmills and planing mills, general.2421
2422 Hardwood dimension and flooring--2426
manufacturing.
2429 Special sawmill products manufac-2429
turing, NEC.
243 Millwork, veneer, plywood, and2431Millwork.2431
prefabricated structural wood 2432Veneer and plywood--manufactur-2432
products--manufacturing. ing.
2433 Prefabricating wooden buildings and2433
structural members--manufacturing.
244 Wooden containers--manufactur-2440Wooden containers--manufacturing.244
ing.
249 Other lumber and wood products.2491Wood preserving.2491
(except furniture) manufactur- 2499Other lumber and wood products2499
ing, NEC. (except furniture) manufacturing,
NEC.
25 Furniture and fixtures--251Household furniture--manufactur-2510Household furniture--manufacturing.251
     
manufacturing. ing.
252 Office furniture--manufacturing.2520Office furniture--manufacturing.252
253 Public building and related fur-2530Public building and related furni-2531
niture--manufacturing. ture--manufacturing.
254 Partitions, shelving, lockers, and2540Partitions, shelving, lockers, and254
office and store fixtures--manu- office and store fixtures--manu-
facturing. facturing.
259 Other furniture and fixtures manu-2591Venetian blinds and shades--manu-2591
facturing, NEC. facturing.
2599 Other furniture and fixtures manu-2599
facturing, NEC.
26 Paper and allied products--261Pulp--manufacturing.2610Pulp--manufacturing.261
     
manufacturing.
262 Paper (except building paper)--2620Paper (except building paper)--262C
manufacturing. manufacturing.
B-4
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
   
26 Paper and allied products--263Paperboard--manufacturing.2630Paperboard--manufacturing.263  C
manufacturing--Continued
264 Converted paper and paperboard2641Paper coating and glazing.2641
products (except containers and 2642Envelope--manufacturing.2642
boxes)--manufacturing. 2643Bags (except textile bags)--manu-2643
facturing.
2644 Wallpaper--manufacturing.2644
2645 Die cut paper and paperboard; and2645
cardboard--manufacturing.
2646 Pressed and molded pulp goods--2646
manufacturing.
2647 Sanitary paper products--manufac-2647
turing.
2649 Other converted paper and paper-2649
board products (except containers
and boxes) manufacturing, NEC.
265 Paperboard containers and boxes--2650Paperboard containers and boxes--265
manufacturing. manufacturing.
266 Building paper and building 2660Building paper and building board--266
board--manufacturing. manufacturing.
27 Printing, publishing, and271Newspapers: publishing, publish-2710Newspapers: publishing, publishing271
         
allied industries. ing and printing. and printing.
272 Periodicals: publishing, publishing2720Periodicals: publishing, publishing272
and printing. and printing.
273 Books: publishing, publishing and2730Books: publishing, publishing and 273
printing. printing.
274 Commercial printing.2740Commercial printing.275
275 Manifold business forms--manu-2750Manifold business forms--manufac-276
facturing. turing.
276 Greeting card--manufacturing.2760Greeting card--manufacturing.277
277 Bookbinding and related indus-2771Blankbooks, looseleaf binders, and2782
tries--manufacturing. devices--manufacturing.
2772 Bookbinding and miscellaneous re-2789
lated work--manufacturing.
278 Printing trade service industries.2781Typesetting.2791
2782 Photoengraving.2793
2783 Electrotyping and stereotyping.2794
2789 Other printing trade service indus-2799
tries, NEC.
279 Other printing and publishing, NEC.2790Other printing and publishing, NEC.274
28 Chemicals and allied prod-281Industrial inorganic and organic2810Industrial inorganic and organic281
ucts--manufacturing. chemicals--manufacturing. chemicals--manufacturing.
282 Plastics materials and synthetic2820Plastics materials and synthetic282
resins, synthetic rubber, syn- resins, synthetic rubber, synthetic
thetic and other manmade fibers and other manmade fibers (except
(except glass)--manufacturing. glass)--manufacturing.
283 Drug--manufacturing.2831Biological products--manufacturing.2831
2832 Medicinal chemicals and botanical2833
products--manufacturing.
2833 Pharmaceutical preparations--man-2834
ufacturing.
284 Soap, detergents, and cleaning2841Soap and detergents (except spe-2841
preparations, perfumes, cos- cialty cleaners)--manufacturing.
metics, and other toilet prepa- 2842Specialty cleaning, polishing, and2842
rations--manufacturing. sanitation preparations (except
soap and detergents)--manufac-
turing.
2843 Surface active agents, finishing2843
agents, sulfonated oils, and as-
sistants--manufacturing.
2844 Perfumes, cosmetics, and other toilet2844C
preparations-manufacturing.
B-5
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
      
28 Chemicals and allied prod-285Paints, varnishes, lacquers, en-2850Paints, varnishes, lacquers, enamels,285  C
ucts--manufacturing-- amels, and allied products-- and allied products--manufacturing.
Continued. manufacturing.
286 Gum and wood chemicals-manu-2860Gum and wood chemicals--manufac-286
facturing. turing.
287 Agricultural chemicals--manufac-2870Agricultural chemicals--manufac-287
turing. turing.
289 Other chemicals and allied prod-2891Glue and gelatin--manufacturing.2891
ucts--manufacturing, NEC. 2892Explosives--manufacturing.2892
2893 Printing ink--manufacturing.2893
2894 Carbon black--manufacturing.2895
2899 Other chemicals and allied products2899
manufacturing, NEC.
29 Petroleum refining and re-291Petroleum refining.2910Petroleum refining.291
lated industries.
292 Paving and roofing materials--2921Paving mixtures and blocks--manu-2951
manufacturing. facturing.
2922 Asphalt felts and coatings--manu-2952
facturing.
299 Other petroleum refining and re-2991Lubricating oils and greases--manu-2992
lated industries, NEC. facturing.
2999 Other petroleum and coal products2999
manufacturing, NEC.
31 Rubber and miscellaneous311Tires and inner tubes--manufac-3110Tires and inner tubes--manufactur-301
          
plastic products--manu- turing. ing.
facturing.
312 Rubber footwear--manufacturing.3120Rubber footwear--manufacturing.302
313 Reclaiming rubber.3130Reclaiming rubber.303
314 Miscellaneous plastic products--3140Miscellaneous plastic products--307
manufacturing. manufacturing.
319 Other fabricated rubber products3190Other fabricated rubber products306
manufacturing, NEC. manufacturing, NEC.
32 Stone, clay, and glass prod-321Flat glass--manufacturing.3210Flat glass--manufacturing.3211 and
ucts--manufacturing. incl. 3231
322 Glass and glassware (pressed or3221Glass containers--manufacturing.3221 and
blown)--manufacturing. incl. 3231
3229 Other glass and glassware (pressed3229 and
or blown) manufacturing, NEC. incl. 3231
323 Cement (hydraulic)--manufactur-3230Cement (hydraulic)--manufacturing.324
ing.
324 Structural clay products--manu-3241Brick and structural clay tile--manu-3251
facturing. facturing.
3242 Ceramic wall and floor tile--manu-3253
facturing.
3243 Clay refractories--manufacturing.3255
3249 Other structural clay products manu-3259
facturing, NEC.
325 Pottery and related products--3251Vitreous china plumbing fixtures,3261
manufacturing. china, earthenware fittings, and
bathroom accessories--manufacturing.
3252 Vitreous china table and kitchen3262
articles--manufacturing.
3253 Fine earthenware (whiteware) table3263
and kitchen articles--manufacturing.
3254 Porcelain electrical supplies--manu-3264
facturing.
3259 Other pottery and related products3269C
manufacturing, NEC.
B-6
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
   
32 Stone, clay, and glass prod-326Concrete, gypsum, and plaster3261Concrete brick and block--manu-3271  C
ucts--manufacturing-- products--manufacturing. facturing.
Continued. 3262Concrete products (excluding brick3272
and block)--manufacturing.
3263 Concrete (ready mixed)--manufac-3273
turing.
3264 Lime products--manufacturing.3274
3265 Gypsum products--manufacturing.3275
327 Cut stone and stone products--3270Cut stone and stone products--manu-328
manufacturing. facturing.
328 Abrasive, asbestos, and miscella-3280Abrasive, asbestos, and miscella-329
neous nonmetallic mineral prod- neous nonmetallic mineral prod-
ucts--manufacturing. ucts--manufacturing.
33 Primary metal industries.331Blast furnaces, steel works, and3311Blast furnaces (including coke ovens),3312
         
the rolling and finishing of fer- steel works, and the rolling of fer-
rous metals. rous metals.
3312 Electrometallurgical products--man-3313
ufacturing.
3313 Steel wire drawing and steel nails3315
and spikes--manufacturing.
3314 Cold rolled sheet, strip, and bars--3316
manufacturing.
3315 Steel pipe and tubes--manufacturing.3317
332 Iron and steel foundries.3320Iron and steel foundries.332
333 Primary smelting and refining of3331Primary smelting and refining of3331
nonferrous metals. copper.
3332 Primary smelting and refining of3332
lead.
3333 Primary smelting and refining of3333
zinc.
3334 Primary production of aluminum.3334
3339 Other primary smelting and refining3339
of nonferrous metals, NEC.
334 Secondary smelting and refining of3340Secondary smelting and refining of334
nonferrous metals and alloys. nonferrous metals and alloys.
335 Rolling, drawing, and extruding of3351Rolling drawing, and extruding of 3351
nonferrous metals. copper.
3352 Rolling, drawing, and extruding of3352
aluminum.
3353 Rolling, drawing, and extruding of3356
nonferrous metals (except copper
and aluminum).
3354 Drawing and insulating of nonferrous3357
wire.
336 Nonferrous foundries.3360Nonferrous foundries.336
339 Other primary metal industries,3390Other primary metal industries,339
NEC. NEC.
34 Fabricated metal prod-341Ordinance and accessories.3411Guns, howitzers, mortars, and re-191
ucts--manufacturing. lated equipment--manufacturing.
3412 Ammunition (except small arms)192
manufacturing and complete as-
sembling of guided missiles and
space vehicles.
3413 Tanks and tank components--manu-193
facturing.
3414 Sighting and fire control equipment--194
manufacturing.
3415 Small arms--manufacturing.195
3416 Small arms ammunition--manufac-196
turing.
3419 Other ordinance and accessories199C
manufacturing, NEC.
B-7
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
      
34 Fabricated metal prod-342Machinery (except electrical)--3421Engines and turbines--manufactur-351C
ucts--manufacturing-- manufacturing. ing.
Continued. 3422Farm machinery and equipment--352
manufacturing.
3423 Construction, mining, and materials353
handling machinery and equip-
ment--manufacturing.
3424 Metalworking machinery and equip-354
ment--manufacturing.
3425 Special industry machinery (except355
metalworking machinery)--manu-
facturing.
3426 General industrial machinery and 356
equipment--manufacturing.
3427 Office, computing, and accounting357
machines--manufacturing.
3428 Service industry machines--manu-358
facturing.
3429 Other machinery --manufacturing359
(except electrical), NEC.
343 Electrical machinery, equipment,3431Electrical transmission and distribu-361
and supplies--manufacturing. tion equipment--manufacturing.
3432 Electrical industrial apparatus--362
manufacturing.
3433 Household appliances--manufactur-363
ing.
3434 Electric lighting and wiring equip-364
ment--manufacturing.
3435 Radio and television receiving sets365
(except communication types)--
manufacturing.
3436 Communication equipment--manu-366
facturing.
3437 Electronic components and acces-367
sories--manufacturing.
3439 Other electrical machinery, equip-369
ment, and supplies manufactur-
ing, NEC.
344 Transportation equipment--man-3441Motor vehicles and motor vehicle371
ufacturing. equipment--manufacturing.
3442 Aircraft and parts--manufacturing.372
3443 Ship and boat building and repairing.373
3444 Railroad equipment--manufacturing.374
3445 Motorcycles, bicycles, and parts--375
manufacturing.
3449 Other transportation equipment379
manufacturing, NEC.
349 Other fabricated metal products3491Metal cans--manufacturing.341
manufacturing, NEC. 3492Cutlery, hand tools, and general342
hardware--manufacturing.
3493 Heating apparatus (except electri-343
cal) and plumbing fixtures--man-
ufacturing.
3494 Fabricated structural metal prod-344
ucts--manufacturing.
3495 Screw machine products and bolts,345
nuts, screws, rivets, and washers--
manufacturing.
3496 Metal stamping--manufacturing.346
3497 Coating, engraving, and allied serv-347
ices.
3498 Fabricated wire products (miscella-348
neous products)--manufacturing.
3499 Other fabricated metal products349C
manufacturing, NEC.
B-8
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
 
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
                     
35 Professional, scientific, and351Engineering, laboratory, and sci-3510Engineering, laboratory, and scien-381 C
controlling instruments: entific and research instruments tific and research instruments and
photographic and optical and associated equipment-- associated equipment--manufac-
goods; watches and clocks-- manufacturing. turing.
manufacturing.
352 Instruments for measuring, con-3521Mechanical measuring and control-3821
trolling, and indicating physical ling instruments (except automatic
characteristics--manufacturing. temperature controls)--manufac-
turing.
3522 Automatic temperature controls--3822
manufacturing.
353 Optical instruments and lenses--3530Optical instruments and lenses--383
manufacturing. manufacturing.
354 Surgical, medical, and dental in-3541Surgical and medical instruments3841
struments and supplies--manu- and apparatus--manufacturing.
facturing.
3542 Orthopedic, prosthetic, and surgical3842
appliances and supplies--manufac-
turing.
3543 Dental equipment and supplies--3843
manufacturing.
355 Ophthalmic goods--manufactur-3550Ophthalmic goods--manufacturing.385
ing.
356 Photographic equipment and sup-3560Photographic equipment and sup-386
plies--manufacturing. plies--manufacturing.
357 Watches, clocks, clockwork oper-3570Watches, clocks, clockwork operated387
ated devices, and parts--manu- devices, and parts--manufacturing.
facturing.
39 Miscellaneous manufactur-391Jewelry, silverware, and plated3911Jewelry and precious metals-manu-3911
ing, NEC. ware--manufacturing. facturing.
3912 Jewelers’ findings and materials--3912
manufacturing.
3913 Lapidary work.3913
3914 Silverware and plated ware--manu-3914
facturing.
392 Musical instruments and parts--3920Musical instruments and parts--393
manufacturing. manufacturing.
393 Toys, amusement, sporting, and3930Toys, amusement, sporting, and394
athletic goods--manufacturing. athletic goods--manufacturing.
394 Pens, pencils, and other office3940Pens, pencils, and other office and395
and artists’ materials--manu- artists’ materials--manufacturing.
facturing.
395 Costume jewelry, costume novel-3950Costume jewelry, costume novelties,396
ties, buttons, and miscellaneous buttons, and miscellaneous notions
notions (except precious metals) (except precious metals)--manu-
--manufacturing. facturing.
396 Tobacco--manufacturing.3961Cigarettes--manufacturing.211
3962 Cigars--manufacturing.212
3963 Tobacco (chewing and smoking) and213
snuff--manufacturing.
3964 Tobacco stemming and redrying.214C
397 Motion picture production.3970Motion picture production.7811 B
B-9
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
 
39 Miscellaneous manufactur-399Other miscellaneous manufactur-3991Brooms and brushes--manufactur-3981  C
ing, NEC--Continued. ing, NEC. ing.
3992 Linoleum, asphalted-felt base, and3982
other hard surface floor cover
manufacturing, NEC.
3993 Matches--manufacturing.3983
3994 Lamp shades--manufacturing.3987
3995 Mortician’s goods-manufacturing.3988
3996 Fur dressing and dyeing3992
3997 Signs and advertising displays--3993
manufacturing.
3998 Umbrellas, parasols, and canes--3995
manufacturing.
3999 Other miscellaneous manufacturing,3984 and
NEC. 3999C
41 Railroad, rapid rail transit,411Railroad transportation.4111Railroad right-of-way (excluding----U
   
and street railway trans- switching and marshaling yards).
portation. 4112Railroad switching and marshaling----C
yards.
4113 Railroad terminals (passenger).----
4114 Railroad terminals (freight).----
4115 Railroad terminals (passenger and----
freight).
4116 Railroad equipment and mainte-----
nance.
4119 Other railroad transportation, NEC.----C
412 Rapid rail transit and street rail-4121Rapid rail transit and street railway----U
way transportation. right-of-way.2
4122 Rapid rail transit and street railway----C
passenger terminals.3
4123 Rapid rail transit and street railway----
equipment maintenance.
4129 Other rapid rail transit and street----
railway transportation, NEC.
42 Motor vehicle transporta-421Bus transportation.4211Bus passenger terminals (intercity).4----
                  
tion. 4212Bus passenger terminals (local).4----
4213 Bus passenger terminals (intercity----
and local).4
4214 Bus garaging and equipment mainte-----
nance.
4219 Other bus transportation, NEC.----
422 Motor freight transportation.4221Motor freight terminals.----
4222 Motor freight garaging and equip-----
ment maintenance.
4229 Other motor freight transportation,----C
NEC.
FOOTNOTES
  1The SIC codes are listed for purposes of reference. The are the
codes in the SIC system that most nearly correspond to the 4-digit land
use activity indicated. (See ch. III, Sec. A3, “The Use of Standard
Industrial Classification Nomenclature.”) A dash indicates that there
is no corresponding SIC code.
B-10
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
               
42 Motor vehicle transporta-429Other motor vehicle transporta-4291Taxicab transportation.4121  C
tion--Continued tion, NEC.4299Other motor vehicle transportation,----C
NEC.
43 Aircraft transportation.431Airports and flying fields.4311Airport and flying field landing/----U
takeoff fields.
4312 Airport and flying field terminals----
(passenger).
4313 Airport and flying field terminals----
(freight).
4314 Airport and flying field terminals----
(passenger and freight).
4315 Aircraft storage and equipment----
maintenance.
4319 Other airports and flying fields,----
NEC.
439 Other aircraft transportation,4391Heliport landing/takeoff pads.5----U
NEC. 4399Other aircraft transportation, NEC.----
44 Marine craft transporta-441Marine terminals.74411Marine terminals (passenger).8----  C
tion.8 4412Marine terminals (freight).----
4413 Marine terminals (passenger and ----
freight).
4414 Marine terminals (commercial fish-----
ing).
4419 Other marine terminals, NEC.----
449 Other marine craft transportation,4490Other marine craft transportation,----C
NEC. NEC.
45 Highway and street right-of-way.451Freeways.4510Freeways.9----  U
452 Expressways.4520Expressways.10----
453 Parkways.4530Parkways.11----
454 Arterial streets.4540Arterial streets.12----
455 Collector/distributor streets.4550Collector/distributor streets.13----
456 Local access streets.4560Local access streets.14----
457 Alleys.4570Alleys.15----
459 Other highway and street right-of-4590Other highway and street right-of-----U
way, NEC. way, NEC.
46 Automobile parking.460Automobile parking.4600Automobile parking.16----C
47 Communication.471Telephone communication.4711Telephone exchange stations.----B
4712 Telephone relay towers (microwave).----
4719 Other telephone communication,----
NEC.
472 Telegraph communication.4721Telegraph message centers.----
4722 Telegraph transmitting and receiv-----
ing stations (only).
4729 Other telegraph communication,----
NEC.
473 Radio communication.4731Radio broadcasting studios (only).----
4732 Radio transmitting stations and----
towers.
4739 Other radio communication, NEC.----
474 Television communication.4741Television broadcasting studios (only).----
4742 Television transmitting stations and----
relay towers.
4749 Other television communication,----
NEC.
475 Radio and television communica-4751Radio and television broadcasting----
tion (combined systems). studios, only (combined systems).
4759 Other combined radio and television----
communication, NEC.
479 Other communication, NEC.4790Other communication. NEC.----B
B-11
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
           
48 Utilities481Electric utility.4811Electric transmission right-of-way.17----C
4812 Electric generation plants.----
4813 Electricity regulating substations.----
4819 Other electric utility, NEC.----
482 Gas utility.4821Gas pipeline right-of-way.17----
4822 Gas production plants.----
4823 Natural or manufactured gas storage----
and distribution points.
4824 Gas pressure control stations.----
4829 Other gas utilities, NEC.----
483 Water utilities and irrigation.4831Water pipeline right-of-way.17----
4832 Water treatment plants (purifica-----
tion).
4833 Water storage.18----
4834 Irrigation distribution channels.----
4835 Water pressure control stations.----
4839 Other water utilities and irrigation,----
NEC.
484 Sewage disposal.4841Sewage treatment plants.----
4842 Sewage sludge drying beds.----
4843 Sewage pressure control stations.----
4849 Other sewage disposal, NEC.----
485 Solid waste disposal.4851Refuse incineration.----
4852 Central garbage grinding stations.----
4853 Compositing plants.----
4854 Sanitary landfills.----
4855 Refuse disposals.----
4856 Industrial waste disposals.----
4857 Active slag dumps and mineral waste----
disposals.
4859 Other solid waste disposal, NEC.----
489 Other utilities, NEC.4890Other utilities, NEC.----
49 Other transportation, com-491Other pipeline right-of-way and4911Petroleum pipeline right-of-way.17----
munication, and utilities, pressure control stations, NEC.4912Petroleum pressure control stations.----
NEC. 4919Other pipeline right-of-way and pres-----
sure control stations, NEC.
492 Transportation services and ar-4921Freight forwarding services.4041 and
rangements. 4712
4922 Packing and crating services.4783
4923 Travel arranging services.472
4924 Transportation ticket services. 18----
4929 Other transportation services and ----
arrangements, NEC.
499 Other transportation, communica-4900Other transportation, communica-----C
tion, and utilities, NEC. tion, and utilities, NEC.
FOOTNOTES 5Code 4391--”Heliport landing/takeoff pads” are identified only
1The SIC codes are listed for purposes of reference. They are the when they are separate activities and not a part of code 431, “Airports
codes in the SIC system that most nearly correspond to the 4-digit and flying fields.”
land use activity indicated. (See ch. III, Sec. A3, “The Use of Stand- 6Code 44--”Marine craft transportation.” The maintenance and
ard Industrial Classification Nomenclature.”) A dash indicates that repair of marine craft should be coded 3443, “Ship and boat building
there is no corresponding SIC code. and repairing.”
2Code 4121--”Rapid rail transit and street railway right-of-way” 7Code 441--”Marine terminals” include all docking facilities (e.g.,
includes only that land which is not within public right-of-way (e.g., wharves, piers, and docks) and associated areas that are used by com-
within a public street right-of-way). Railroad right-of-way used by mercial passenger, freight, and fishing craft. Docking facilities that
rapid rail transit is considered to be railroad right-of-way and is coded primarily serve recreational type of marine craft are identified under
4111. code 744, “Marinas,”
3Code 4122--”Rapid rail transit and street railway passenger ter- 8Code 4411--”Marine terminals (passenger)” include ferry terminals.
minals” identifies only those terminals that are not located within 9Code 4510--”Freeways” are divided highways for through traffic
public right-of-way (e.g., within a public street right-of-way). with full control of access and no cross traffic at grade.
4Codes 4211, 4212, 4213--”Bus passenger terminals” identifies only 10Code 4520--”Expressways” are divided highways for through
those terminals that are not located on the public right-of-way (e.g., traffic with full or partial control of access with grade separations at
within a public street right-of-way). major crossroads.
Footnotes continued on following page.
B-12
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
 
11Code 4530--”Parkways” are highways for noncommercial traffic, 17 parking spaces), and that serves no other single type of activity.
with full or partial control of access. They are located within a park This code includes parking on open lots, parking within parking struc-
or within a ribbon of parklike development. tures, parking within structures that also house other activities (e.g.,
12Code 4540--”Arterial streets” are those streets which serve move- parking area in an office building), and the parking area at shopping
ments of traffic and are not freeways, expressways, and parkways. centers. Parking areas of less than 5,000 square feet are not identified
Generally there is no control of access. as a separate activity.
 
13Code 4550--”Collector/distributor streets” are those streets that 17Codes 4811, 4821, 4831, 4911--These codes identify those areas
collect traffic from the local streets and channel it into the arterial where the surface is devoted exclusively to the right-of-way of the respec-
system. These streets also provide necessary cross-connections be- tive activities and is used for no other purposes.
tween arterials. The collector/distributor street does not handle long 18Code 4833--”Water storage” includes impounded surface water
through trips, and it is not continuous for any great length. areas or water tanks used for storage. Lakes or other natural water
14Code 4560--”Local access streets” are those used primarily for formations are identified under code 93, “Water areas.”
access to residences, businesses, or other abutting activities. 19Code 4924--”Transportation ticket services” include the ticket
15Code 4570--”Alleys” are minor narrow streets usually without offices of any of the transportation systems. The ticket offices are
sidewalks and on which building adjoin from the rear. identified only when they are a separate and distinct activity, not
16Code 4600--”Automobile parking” includes nonresidential off- located within one of the transportation terminals.
street parking that is 5,000 square feet or greater (or approximately
 
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
    
51 Wholesale trade.2511Motor vehicles and automotive5111Automobiles and other motor vehi-5012B
equipment--wholesale. cles--wholesale.
5112 Automotive equipment--wholesale.5013
5113 Tires and tubes--wholesale.5014
512 Drugs, chemicals, and allied5121Drugs, drug proprietaries and drug-5022
products--wholesale. gists’ sundries--wholesale.
5122 Paints and varnishes--wholesale.5028
5129 Other drugs, chemicals, and allied5029
products, wholesale, NEC.
513 Dry goods and apparel--whole-5131Dry goods, piece goods, and notions--5032
sale. wholesale.
5132 Apparel and accessories, hosiery, and5035
lingerie--wholesale.
5133 Footwear--wholesale.5039
514 Groceries and related products--5141Groceries (general line)--wholesale.5042
wholesale. 5142Dairy products--wholesale.5043
5143 Poultry and poultry products--5044
wholesale.
5144 Confectionery--wholesale.5045
5145 Fish and seafoods--wholesale.5046
5146 Meats and meat products--wholesale.5047
5147 Fruits and vegetables (fresh)--5048
wholesale.
5149 Other groceries and related products5049
wholesale, NEC.
 
515 Farm products (raw materials)--5151Cotton--wholesale.Incl. 5051
wholesale. 5152Grain--wholesale.Incl. 5051
5153 Hides, skins, and raw furs-whole-Incl. 5051
sale.
5154 Leaf tobacco--wholesale.Incl. 5051
5155 Wool and mohair--wholesale.Incl. 5051
5156 Livestock--wholesale.Incl. 5051
5157 Horses and mules--wholesale.Incl. 5051
5159 Other farm products wholesale,Incl. 5051
NEC.
    
516 Electrical goods--wholesale.5161Electrical apparatus and equipment,5063
wiring supplies, and construction
materials--wholesale.
5162 Electrical appliances, television, and5064
radio sets--wholesale.
5163 Electronic parts and equipment--5065
wholesale.
517 Hardware, plumbing, heating5171Hardware--wholesale.5072
equipment, and supplies-- 5172Plumbing and heating equipment5074
wholesale. and supplies--wholesale.
5173 Air conditioning, refrigerated equip-5077B
ment, and supplies--wholesale.
B-13
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
                
51 Wholesale trade 2--518Machinery, equipment, and5181Commercial and industrial machin-5082B
Continued supplies--wholesale. ery, equipment, and supplies--
wholesale.
5182 Farm machinery and equipment--5083
wholesale.
5183 Professional equipment and sup-5086
plies--wholesale.
5184 Equipment and supplies for service5087
establishments--wholesale.
5185 Transportation equipment and sup-5088
lies (except motor vehicles)--
wholesale.
5189 Other machinery, equipment, and5089
supplies wholesale, NEC.
519 Other wholesale trade, NEC.5191Metals and minerals (except petro-5091
leum products and scrap)--whole-
sale.
5192 Petroleum bulk stations and termi-5092
nals--wholesale.
5193 Scrap and waste materials--whole-5093
sale.
5194 Tobacco and tobacco products--5094
wholesale.
5195 Beer, wine, and distilled alcoholic5095
beverages--wholesale.
5196 Paper and paper products--whole-5096
sale.
5197 Furniture and home furnishings--5097
wholesale.
5198 Lumber and construction materials--5098
wholesale.
5199 Other wholesale trade, NEC.5099
52 Retail trade--building ma-521Lumber and other building ma-5211Lumber years-retail5211
terials, hardware, and terials--retail.5212Building materials--retail.5212
farm equipment.
522 Heating and plumbing equip-5220Heating and plumbing equipment--522
ment-retail. retail.
523 Paint, glass, and wallpaper--5230Paint, glass, and wallpaper-retail.523
retail.
524 Electrical supplies--retail.5240Electrical supplies--retail.524
525 Hardware and farm equip-5251Hardware--retail5251
ment--retail. 5252Farm equipment retail.5252
53 Retail trade--general mer-531Department stores--retail.5310Department stores--retail.531
chandise.
532 Mail order houses--retail.5320Mail order houses--retail.532
533 Limited price variety stores--5330Limited price variety stores--retail.533
retail.
534 Merchandise vending machine5340Merchandise vending machine op-534
operators--retail. erators--retail.
535 Direct selling organizations--5350Direct selling organizations--retail.535
retail.
539 Other retail trade--general5391Dry goods and general merchan-5392
merchandise, NEC. dise--retail.
5392 General stores--retail.5393
54 Retail trade--food.541Groceries (with or without5410Groceries (with or without meat)--541
meat)--retail retail.
542 Meats and fish--retail.5421Meats--retail.5422
5422 Fish and seafoods--retail.5423B
B-14
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
                       
54 Retail trade--food--543Fruits and vegetables--retail.5430Fruits and vegetables--retail.543B
Continued
544 Candy, nut, and confectionery--5440Candy, nut, and confectionery--544
retail. retail.
545 Dairy products-retail.5450Dairy products--retail.545
546 Bakeries--retail.5461Bakeries (manufacturing)--retail.35462
5462 Bakeries (nonmanufacturing)--re-5463
tail.4
549 Other retail trade--food, NEC.5491Egg and poultry--retail.5491
5499 Other retail trade--food, NEC.5499
55 Retail trade--automotive,551Motor vehicles--retail.5511Motor vehicles (new and used cars)--551
marine craft, aircraft, retail.
and accessories. 5512Motor vehicles (used cars only)--552
retail.
552 Tires, batteries, and acces-5520Tires, batteries, and accessories--553
sories--retail. retail.
553 Gasoline service stations.5530Gasoline service stations.554
559 Other retail trade--automotive,5591Marine craft and accessories--retailIncl. 5599
marine craft, aircraft, and 5592Aircraft and accessories--retail.Incl. 5599
accessories, NEC. 5599Other retail trade--automotive, Incl. 5599
marine craft, aircraft, and acces-
sories, NEC.
56 Retail trade--apparel and561Men’s and boys’ clothing and5610Men’s and boys’ clothing and fur-561
accessories. furnishings--retail. nishings--retail.
562 Women’s read-to-wear-retail.5620Women’s ready-to-wear-retail.562
563 Women’s accessories and spe-5630Women’s accessories and special-563
cialties--retail. ties--retail.
564 Children’s and infants’ wear--5640Children’s and infants’ wear--retail.564
retail.
565 Family clothing--retail.5650Family clothing--retail.565
566 Shoes--retail.5660Shoes--retail.566
567 Custom tailoring.5670Custom tailoring.567
568 Furriers and fur apparel--retail.5680Furriers and fur apparel--retail.568
569 Other retail trade--apparel and5690Other retail trade--apparel and ac-569
accessories, NEC. cessories, NEC.
57 Retail trade--furniture, 571Furniture, home furnishings, and5711Furniture--retail.5712
home furnishings, and equipment--retail.5712Floor coverings--retail.5713
equipment. 5713Draperies, curtains, and upholstery--5714
retail.
5714 China, glassware, and metalware---5715
retail.
5719 Other furniture, home furnishings,5719
and equipment retail, NEC.
572 Household appliances--retail.5720Household appliances--retail.572
573 Radios, televisions, and music5731Radios and televisions--retail.5732
supplies--retail. 5732Music supplies--retail.5733
58. Retail trade--eating and581Eating places.5810Eating places.55812
drinking.
582 Drinking places (alcoholic bev-5820Drinking places (alcoholic beverages).5813B
erages).
B-15
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
                
59 Other retail trade, NEC.591Drug and proprietary--retail.5910Drug and proprietary--retail.591  B
592 Liquor--retail.5920Liquor--retail.592
593 Antiques and secondhand mer-5931Antiques--retail.5932
chandise--retail. 5932Secondhand merchandise retail.5933
594 Book and stationery--retail.5941Books-retail.5942
5942 Stationery--retail.5943
595 Sporting goods and bicycles--5951Sporting goods--retail.5952
retail. 5952Bicycles--retail.5953
596 Farm and garden supplies--re-5961Hay, grains, and feeds-retail.5962
tail. 5969Other farm and garden supplies5969
retail, NEC.
597 Jewelry--retail.5970Jewelry--retail.597
598 Fuel and ice--retail.5981Fuel and ice dealers (except fuel oil5982
and bottled gas dealers)--retail.
5982 Fuel oil--retail.5983
5983 Bottled gas--retail.5984
599 Other retail trade, NEC.5991Florists--retail.5992
5992 Cigars and cigarettes--retail.5993
5993 Newspapers and magazines--retail.5994
5994 Cameras and photographic supplies--5996
retail.
5995 Gifts, novelties, and souvenirs--re-5997
tail.
5996 Optical goods--retail.5998
5999 Other retail trade, NEC.5999
61 Finance, insurance, and611Banking and bank-related func-6111Banking services.601, 602, 603,
real estate services. tions.and 604
6112 Bank-related functions.605
612 Credit services (other than6121Savings and loan associations.612
banks). 6122Agricultural, business, and personal613, 614 and 615
credit services (including credit
unions).
6129 Other credit services (other than611 and 616
banks), NEC.
613 Security and commodity brok-6131Security brokers, dealers, and flota-6211
ers, dealers, exchanges, and tion services.
services. 6132Commodity contracts brokers and6221
dealers services.
6133 Security and commodity exchanges.623
6134 Security and commodity allied serv-628
ices.
614 Insurance carriers, agents, brok-6141Insurance carriers.63
ers, and services. 6142Insurance agents, brokers, and serv-64B
ices.
FOOTNOTES the premises. For example, 5122-0 is a wholesaler of paints and var-
nishes who has a definite storage area set aside for his merchandise.
1The SIC codes are listed for purposes of reference. They are the 3Code 5461--”bakeries (manufacturing)--retail” include only those
     
codes in the SIC system that most nearly correspond to the 4-digit bakeries that produce on the premises some or all of the products sold.
land use activity indicated. (See ch. 111. sec. A3, “The Use of Standard     4Code 5462--”Bakeries (nonmanufacturing)--retail” include only
Industrial Classification Nomenclature.”) A dash indicates that there those bakeries that do not produce on the premises the products that
is no corresponding SIC code. are sold.
2Code 51--”Wholesale trade.” A code of “0" is used in the auxiliary     5Code 5810--”Eating places” include both establishments serving
position for those wholesalers who maintain a definite storage area on only food as well as those serving both food and alcoholic beverages.
B-16
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
                   
61 Finance, insurance, and615Real estate and related services.6151Real estate operators (except devel-651  B
real estate services-- opers) and lessors.
Continued. 6152Real estate agents, brokers, and653
management services.
6153 Title abstracting services.654
6154 Real estate subdividing and develop-655
ing services.
6155 Real estate operative builders.656
6156 Combinations of real estate, insur-661
ance, loan, and law services.
6159 Other real estate and related services,----
NEC.
616 Holding and investment serv-6160Holding and investment services.67
ices.
619 Other finance, insurance, and 6190Other finance, insurance, and real----
real estate services, NEC. estate services, NEC.
62 Personal services.621Laundering, dry cleaning, and6211Laundering, dry cleaning, and dye-7211, 7212, and
dyeing services. ing services (except rugs).7216
6212 Linen supply and industrial laundry7213
services.
6213 Diaper services.7214
6214 Laundering and dry cleaning (self-7215
service).
6215 Rug cleaning and repair services.7217
622 Photographic services (includ-6220Photographic services (including722
ing commercial). commercial).
623 Beauty and barber services.6231Beauty services.723
6232 Barber services.724
624 Funeral and crematory services;6241Funeral and crematory services.726
cemeteries. 6242Cemeteries.----
625 Apparel repair, alteration and 6251Pressing, alteration, and garment re-7271
cleaning pickup services; shoe pair; laundry and dry cleaning
repair services. pickup services (only).
6252 Fur repair and storage services.7272
6253 Shoe repair, shoe shining, and hat725
cleaning services.
629 Other personal services, NEC.6290Other personal services, NEC.729
63 Business services.631Advertising services.6311Advertising services (general).7311
6312 Outdoor advertising services.7312
6319 Other advertising services, NEC.7319
632 Consumer and mercantile credit6320Consumer and mercantile credit re-7321
reporting services, adjustment porting services; adjustment and
and collection services. collection services.
633 Duplicating mailing and steno-6331Direct mail advertising services.7331
graphic services. 6332Blueprinting and photocopying serv-7332
ice.
6339 Stenographic services and other 7339
duplicating and mailing services, NEC.
634 Dwelling and other building6341Window cleaning services.7341
services. 6342Disinfecting and exterminating serv-7342
vices.
6349 Other dwelling and building services,7349
NEC.
635 News syndicate services.6350News syndicate services.735
636 Employment services.6360Employment services.736B
B-17
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
           
63 Business services--637Warehousing and storage serv-6371Farm products warehousing and4221B
Continued ices.2 storage (excluding stockyards).
6372 Stockyards.4731
6373 Refrigerated warehousing (except4222
food lockers).
6374 Food lockers (with or without food4223
preparation facilities).
6375 Household goods warehousing and 4224
storage.
6376 General warehousing and storage.4225
6379 Other warehousing and storage,4226
NEC.
639 Other business services, NEC.6391Research, development, and testing7391
services.
6392 Business and management consulting 7392
services.
6393 Detective and protective services.7393
6394 Equipment rental and leasing serv-7394
ices.
6395 Photofinishing services.7395
6396 Trading stamp services.7396
6397 Automobile and truck rental serv-7511
ices.
6398 Motion picture distribution and 7812 and 782
services.
6399 Other business services, NEC.7399
64 Repair services.641Automobile repair and services.6411Automobile repair services.753
6412 Automobile wash services.Incl. 7541
6419 Other automobile services (except re-Incl. 7541
pair and wash), NEC.
649 Other repair services, NEC.6491Electrical repair services (exceptIncl. 7621
radio and television).
6492 Radio and television repair services.7622
6493 Watch, clock, and jewelry repair763
services.
6494 Reupholstery and furniture repair764
services.
6495 Armature rewinding services.7694
6499 Other repair services, NEC.7699B
65 Professional services.651Medical and other health serv-6511Physicians’ services.801, 803,A
ices. and 804
6512 Dental services.802
6513 Hospital services.806
6514 Medical laboratory services.8071
6515 Dental laboratory services.8072
6516 Sanitariums, convalescent, and rest8092
home services.
6517 Medical clinics--out-patient services.----
6519 Other medical and health services,8099A
NEC.
652 Legal services.6520Legal services.811B
659 Other professional services,6591Engineering and architectural serv-891
NEC. ices.
6592 Educational and scientific research892
services.
6593 Accounting, auditing, and book-893
keeping services.
6594 Urban planning services.Incl. 899
6599 Other professional services, NEC.Incl. 899
66 Contract construction661General contract construction6611Building construction--general con-151
services. services. tractor services.
6619 Other general construction contrac-16B
tor services, NEC.
B-18

B.  A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT

 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
 
66 Contract construction662Special construction trade serv-6621Plumbing, heating, and air condi-171B
services--Continued ices. tioning services.
6622 Painting, paper hanging, and decor-172
ating services.
6623 Electrical services.173
6624 Masonry, stonework, tile setting,174
and plastering service.
6625 Carpentering and wood flooring.175
6626 Roofing and sheet metal services.176
6627 Concrete services.177
6628 Water well drilling services.178
6629 Other special construction trade179
services, NEC.
67 Governmental services.671Executive, legislative, and ju-6710Executive, legislative, and judicialIncl. 919,
 
dicial functions. functions.3929, and 939
672 Protective functions and their6721Police protection and related activi-Incl. 919,
related activities. ties.929, and 939
6722 Fire protection and related activities.Incl. 919,
929, and 939
6723 Civil defense and related activities.Incl. 919,
 
929, and 939
 
673 Postal services.6730Postal services.Incl. 919B
674 Correctional institutions.6741Prisons.Incl. 919,A
 
929, and 939
6749 Other correctional institutions, NEC.Incl. 919,
 
929, and 939 A
675 Military bases and reservations.46751Military training bases.Incl. 919B
 
and 929
   
6752 Military defense installations.Incl. 919
and 929
6753 Military storage depots and trans-Incl. 919
portation centers. and 929
6754 Military maintenance centers.Incl. 919
and 929
6755 Military administration or commandIncl. 919
centers. and 929
6756 Military communication centers.Incl. 919
and 929
6759 Other military bases and reserva-Incl. 919
tions, NEC. and 929B
68 Educational services.681Nursery, primary, and secondary6811Nursery schools.Incl. 821A
education. 6812Primary (elementary) schools.5Incl. 821
6813 Secondary schools.6Incl. 821
682 University, college, junior college,6821Universities and colleges.Incl. 8221
and professional school edu- 6822Junior colleges.Incl. 8222
cation. 6823Professional schools.Incl. 8221
683 Special training and schooling.6831Vocational or trade schools.8242
         
6832 Business and stenographic schools.Incl. 8299
6833 Barber and beauty schools. Incl. 723
and 724
6834 Art and music schools.Incl. 8299
6835 Dancing schools.Incl. 7911
6836 Driving schools.Incl. 8299
6837 Correspondence schools. 8241
6839 Other special training and schooling,Incl. 8299A
NEC.
B-19
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
    
69 Miscellaneous services.691Religious activities.76911Churches, synagogues, and temples.Incl. 866  A
6919 Other religious activities, NEC.Incl. 866A
692 Welfare and charitable services.6920Welfare and charitable services.867B
699 Other miscellaneous services,6991Business associations.861
NEC. 6992Professional membership organiza-862
tions.
6993 Labor unions and similar labor863
organizations.
6994 Civic, social, and fraternal associa-864
tions.
6999 Other miscellaneous services, NEC.----B
FOOTNOTES
  
  1The SIC codes are listed for purposes of reference. They are the legislature and courts. All operational activities (e.g., shipbuilding,
codes in the SIC system that most nearly correspond to the 4-digit land schools, or hospitals) should be identified separately under the respective
use activity indicated. (See ch. III, sec. A3, “The Use of Standard activity codes.
Industrial Classification Nomenclature.”) A dash indicates that there   4Code 675--”Military bases and reservations” include the installa-
is no corresponding SIC code. tions used by both the active military as well as the Reserves and the
  2Code 637--”Warehousing and storage services” include only those National Guard.
facilities that are used by or are open to the public. When ware-   5Code 6812--”Primary (elementary) schools” may or may not include
housing and storage is functionally and organizationally linked to a kindergarten, but they do include grades 1 through 6.
another activity (e.g., a general contractor or an apparel manufacturer),   6Code 6813--”Secondary schools” are schools that include grades 7
the facilities are identified and coded the same as the parent activity through 12, popularly known as junior and senior high schools.
and with a code of 4 (warehousing and storage) in the auxiliary position.   7Code 691--”Religious activities” include only those places operated
For example, 2310-4 is a warehouse and storage area of a manufacturer for worship or for the promotion of religious activities. Activities
of men’s, youths’, and boys’ suits, coats, and overcoats. maintained by the religious organizations (e.g., schools, hospitals, pub-
  3Code 6710--”Executive, legislative, and judicial functions” include lishing houses, etc.) should be identified separately under the respective
only the central and administrative office activities of the agencies or activity codes.
special authorities involved in government functions, including the
71 Cultural activities and 711Cultural activities.7111Libraries823A
          
nature exhibitions. 7112Museums.Incl. 841
7113 Art galleries.2Incl. 841
7119 Other cultural activities, NEC. ----
712 Nature exhibitions.7121Planetaria. ----
7122 Aquariums.Incl. 8421
7123 Botanical gardens and arboretums.Incl. 842A
7124 Zoos. ----B
7129 Other nature exhibitions, NEC. ----
719 Other cultural activities and7191Historic and monument sites.3 ----
nature exhibitions, NEC. 7199Other cultural activities and nature ----
exhibitions, NEC.
72 Public assembly.721Entertainment assembly.7211Amphitheaters. ----
7212 Motion picture theaters.Incl. 7831
7213 Drive-in movies.Incl. 7831
7214 Legitimate theaters. ----
7219 Other entertainment assembly, NEC. ----
722 Sports assembly.47221Stadiums.5Incl. 7941
7222 Arenas and field houses. ----B
7223 Race tracks.6Incl. 7948C
7229 Other sports assembly, NEC. ----B
723 Public assembly, miscellaneous7231Auditoriums. ----
purposes. 7232Exhibition halls. ----
7239 Other miscellaneous assembly, NEC. ----
729 Other public assembly, NEC.7290Other public assembly, NEC. ----B
73 Amusements.731Fairgrounds and amusement7311Fairgrounds.Incl. 7949*
parks. 7312Amusement parks.Incl. 7949B
*Fairgrounds are Class B Land; when used for automobile and
motorcycle racing, Fairgrounds are Class C Land.
B-20
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
            
73 Amusements--Continued739Other amusements, NEC.7391Penny arcades.Incl. 7949  B
7392 Miniature golf.Incl. 7949
7393 Golf driving ranges.Incl. 7949
7394 Go-cart tracks.Incl. 7949
7399 Other amusements, NECIncl. 7949
74 Recreational activities.741Sports activities.7411Golf courses (without country club). 7942
7412 Golf courses (with country club). 7947
7413 Tennis courts. ----
7414 Ice skatingIncl. 7945
7415 Roller skatingIncl. 7945
7416 Riding stables. ----
7417 BowlingIncl. 7931
7418 Skiing and tobogganing. ----
7419 Other sports activities, NEC. ----
742 Playgrounds and athletic areas.7421Play lots or tot lots.7 ----
7422 Playgrounds.8 ----
7423 Playfields or athletic fields.9 ----
7424 Recreation centers (general).10 ----
7425 Gymnasiums and athletic clubs.Incl. 7949
7429 Other playground and athletic areas, NEC. ----
743 Swimming areas.7431Swimming beaches.11 ----
7432 Swimming pools.12 7944
744 Marinas.137441Yachting clubs.Incl. 7949
7442 Boat rentals and boat access sites. ----
7449 Other marinas, NEC. ----
749 Other recreation, NEC.7491Camping and picnicking areas.14 ----
7499 Other recreation, NEC. ----
75 Resorts and group camps.751Resorts.7511General resorts.15 ----
7512 Dude ranches.Incl. 7032
7513 Health resorts.Incl. 8092
7514 Ski resorts. ----
7515 Hunting and fishing clubs.18Incl. 7032
7519 Other resorts, NEC. ----
752 Group or organized camps.7520Group or organized camps.17Incl. 7032
76 Parks.761Parks--general recreation.7610Parks--general recreation.18 ----B
762 Parks--leisure and ornamental.7620Parks--leisure and ornamental.19 ----A
769 Other parks, NEC.7690Other parks, NEC. ----B
79 Other cultural, entertain-790Other cultural, entertainment,7900Other cultural, entertainment, and ----  B
ment, and recreational and recreational activities, NEC. recreational activities, NEC.
activities, NEC.
FOOTNOTES contain such facilities as sand boxes, slides, teeters, swings, climbing
  1The SIC codes are listed for purposes of reference. They are the apparatus, etc. They are identified and coded only when found as a
codes in the SIC system that most nearly correspond to the 4-digit separate activity and not subsidiary to or serving another activity (e.g.
land use activity indicated. (See ch. III. sec. A3, “The Use of Standard apartment house or playground).
Industrial Classification Nomenclature,”) A dash indicates that there   8Code 7422--”Playgrounds” are areas that have been developed for
is no corresponding SIC code. active play and recreation. They are identified and coded only when
  2Code 7113--”Art galleries” do not include those galleries that sell found as a separate activity and not subsidiary to or serving another
art objects commercially. Commercial sales are coded 5999, “Other activity (e.g., a school).
retail trade, NEC.”   9Code 7423--”Playfields or athletic fields” contain a playground as
  3Code 7191--”Historic and monument sites” include those locations well as a field(s) or court(s) for competitive sports (e.g., baseball, foot-
set aside for no other purpose than to commemorate an historical event, ball, or tennis). Bleachers or grandstands may be provided. They
activity, or person. are identified and coded only when found as a separate activity and not
  4Code 722--”Sports assembly” includes only the public assembly subsidiary to or serving another activity (e.g., a school).
areas used for nonparticipating sports.   10Code 7414'’”Recreation centers (general)” include diversified
  5Code 7221--”Stadiums” include those used for individual sports, recreation for a wide variety of activities for all ages and interests.
e.g., baseball or football, as well as those used for several sports activi- The recreation centers may contain, but are not limited to a gymnasium,
ties. social or play rooms, game rooms, arts and craft shops, etc.
  6Code 7223--”Race tracks” include those used for individual racing   11Code 7431--”Swimming beaches” are beach areas that have been
activities, e.g., horse racing and automobile racing, as well as those used set aside specifically for the purpose of swimming. They are identified
for several racing activities. only when they are not a part of a larger activity (e.g., a park).
  7Code 7421--”Play lots or tot lots” are small areas developed espe-   12Code 7432--”Swimming Pools” are separately identified if they are
cially for preschool or elementary school aged children. They may Footnotes continued on following page.
B-21
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
 
    
independent of other functions (e.g., code 72, “Public assembly” or  16Code 7515--”Hunting and fishing clubs” include areas on which
code 11, “Household units”). They may be indoor or outdoor pools. artificially propagated game or fish are released for purposes of hunting
 13Code 744--”Marinas” include marine terminals and associated or fishing. If there are other uses made of the property (e.g., agricul-
areas that are primarily for recreational marine craft. The sale and tural use), these “other” uses should take priority in identifying the
repair of recreational marine craft is coded 5591, “Marine craft and activity of the parcel.
accessories--retail” and code 3443, “Ship and boat building and re-   17Code 7520--”Group or organized camps” include general camps for
pairing,” respectively. children, as well as Boy Scout and Girl Scout camps.
  14Code 7491--”Camping and picnicking areas” are separately identified   18Code 7610--”Parks--general recreation” may include, but are not
if they are not a part of a larger activity (e.g., a park). limited to, picnic areas, bathing beaches, playfields, hiking trails,
  15Code 7511--”General resorts” have rooms for 20 or more persons camping grounds, and other manmade recreation facilities.
and have provision for at least 2 types of recreational activities, exclud-   19Code 7620--”Parks--leisure and ornamental”are largely for scenic
ing lawn games, children’s playgrounds, and swimming pools. or leisure purposes. They may contain beaches, children’s play facilit-
ties, monuments, or statues.
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
        
81 Agriculture.2811Farms (predominant crop,8111Farms (predominant crop, cotton).----C
fibers).3 8119Farms (other type fiber crops).----
812 Farms (predominant crop, cash8120Farms (predominant crop, cash----
grains).3 grains).
813 Farms (field crops other than8130Farms (field crops other than fiber----
fiber or cash grain crops).3 or cash grain crops).
814 Farms (predominant crop,8141Farms (predominant crop, fruits).----
fruits, tree nuts, or vegeta- 8142Farms (predominant crop, tree nuts).----
bles).3 8143Farms (predominant crop, vege-----
tables).
815 Farms (predominantly dairy8150Farms (predominantly dairy prod-----
products).3 ucts).
816 Farms and ranches (livestock8161Farms and ranches (predominantly----
other than dairy).3 cattle).
8162 Farms and ranches (predominantly----
hog).
8163 Farms and ranches (predominantly----
sheep).
8164 Farms and ranches (predominantly----
goat).
8169 Farms and ranches (other livestock),----
NEC.
817 Farms (predominantly poultry).38170Farms (predominantly poultry).----
818 Farms (general--no predomi-8180Farms (general--no predominance).----
nance).3
819 Other agriculture and related8191Range and grassland pastures (not----
activities, NEC. farm or ranch).4
8192 Horticultural specialties.0192
   
8193 Apiary farms.Incl. 0193
8194 Farms and ranches (predomi-Incl. 0193
nantly horse raising).
8199 Other agriculture and related activi- ----
ties, NEC.
82 Agricultural related activi-821Agricultural processing.38211Cotton ginning and compressing. 0712
ties. 8212Grist milling services. 0713
8213 Corn shelling, hay baling, and thresh- 0714
ing services.
8214 Contract sorting, grading, and pack- 0715
aging services (fruits and vegeta-
bles).
8219 Other agricultural processing serv- 0719
ices, NEC.
822 Animal husbandry services.8221Veterinarian services. Incl. 0722
8222 Animal hospital services. Incl. 0722
8223 Poultry hatchery services. 0723
8229 Other animal husbandry services, 0729C
NEC.
B-22
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
  
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
    
82 Agricultural related activi829Other agricultural related activi-8291Horticultural services.0731  C
ties--Continued ties, NEC.8299Other agricultural related activities,----
NEC.
83 Forestry activities and re-831Commercial forestry produc-8311Timber production--predominantly----
lated services.6 tion.7 for pulp wood.
8312 Timber production--predominantly----
for saw logs.
8313 Timber production--predominantly----
for veneer logs.
8314 Timber production--mixed uses.----
8315 Tree products production--predomi-0842
nantly gum extracting (except pine
gum) and bark.
8316 Tree products production--predomi-0843
nantly pine gum extraction.
8317 Timber and tree products produc-----
tion--mixed uses.
8319 Other commercial forestry produc-----
tion, NEC.
832 Forestry services.8321Forest nurseries.0822
8329 Other forestry services, NEC.0851
839 Other forestry activities and re-8390Other forestry activities and related----
lated services, NEC. services, NEC.
84 Fishing activities and re-841Fisheries and marine products.88411Finfish fisheries.0912
lated services. 8412Shellfish fisheries.0913
  
8419 Other fisheries and marine products,0914 and 0919
NEC.
842 Fishery services.8421Fish hatcheries.Incl. 0989
8429 Other fishery services, NEC.Incl. 0989
849 Other fishery activities and re-8490Other fishery activities and related ----
lated services, NEC. services, NEC.
   
85 Mining activities and re-851Metal ore mining.8511Iron ore-mining.101
lated services. 8512Copper ore mining.102
8513 Lead and zinc ore mining.103
8514 Gold and silver ore mining.104
8515 Bauxite and other aluminum ore105
mining.
8516 Ferroalloy ore (except vanadium)106
mining.
8519 Other metal ore mining, NEC.109
852 Coal mining.8521Anthracite coal mining.111
8522 Bituminous coal mining.1211
8523 Lignite coal mining.1212
853 Crude petroleum and natural gas.8530Crude petroleum and natural gas.131
854 Mining and quarrying of non-8541Dimension stone.141
metallic minerals (except 8542Crushed and broken stone (including142
fuels). riprap)--quarrying.
8543 Sand and gravel--quarrying.144
8544 Clay, ceramic, and refractory miner-145
als--mining.
8545 Chemical and fertilizers (mineral)--147
mining.
8549 Other mining and quarrying of non-148
metallic minerals (except fuels), NEC.
855 Mining services.8551Metal mining services.108
8552 Coal mining services. 1112 and 1213
  
8553 Crude, petroleum and gas field138
services.
8554 Nonmetallic mining (except fuel)--148
services.
8559 Other mining services, NEC.----
89 Other reSource: production890Other reSource: production and8900Other reSource: production and extrac-----  C
and extraction, NEC. extraction, NEC. tion, NEC.
B-23
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
FOOTNOTES farm or ranch. These areas are usually part of the public domain in
which grazing has been permitted.
  1The SIC codes are listed for purposes of reference. They are the   5Code 821--”Agricultural processing” includes only preliminary
codes in the SIC system that most nearly correspond to the 4-digit land processing of agricultural products. Any extensive processing, packing,
use activity indicated. (See ch. III, Se. A3, “The Use of Standard canning, or manufacturing is coded 21, “Food and kindred products--
Industrial Classification Nomenclature.”) A dash indicates that there manufacturing.”
is no corresponding SIC code.   6Code 83--”Forestry activities and related services.” The categories
  2Code 81--”Agriculture.” A parcel of land is considered to be in in this classification are based upon primary use of the land. It is
agricultural use if 10 or more acres are under cultivation, in tree or recognized that other activities, e.g., recreation or the grazing of live-
bush crops, or are used for livestock or poultry purposes. The 10 acres stock may also be taking place within these forested areas. However,
may include the area of the residence, if there is one, and the immediate these types of activities are considered secondary in nature and not
associated area surrounding the residence. coded. Activities such as mining (code 85), permanent camping areas
  3A farm may consist of several ownership or rented parcels of land (code 7491), and logging camps (code 2410), located within the
that are noncontiguous. However, each parcel should be linked to- forested areas should be separately identified.
gether as one “farm management unit,” and identified by only one   7Code 831--”Commercial forestry production” includes those
3- or 4-digit category, e.g., code 8120, “Farms (predominant crops, cash forested areas not on the farms or ranches that are being managed or
grains).” have been set aside to grow tree crops for “industrial wood” or to obtain
Using the “Farm use” categories in app. 2 of this report, farm (i.e., tree products such as sap, bark, or seeds. “Industrial wood” includes
the farm management units) are to be classified by the most predominant commercial roundwood products, such as saw logs and pulpwood, but
use made of the land (the farm use taking up the greatest percentage of excludes fuel wood and fence posts. “Forest reserves,” i.e., areas
farm area) excluding the areas used by farm residences and associated withdrawn from any commercial use of the trees, are coded 921.
buildings, nonresident farm buildings, areas in feed crops, and grazed “Parks,” e.g., national or State parks, are also a type of forest reserve,
and nongrazed forested areas. Exceptions to this rule are: but because of their designation for recreational activity, they should
a. If 50 percent or more of the value of the farm products sold in the be identified as “Parks” under code 76. Forested areas not on farms,
previous year came from the sale of dairy products, or the sale of cows ranches, or estates with no commercial use made of the trees are coded
and calves, the farm is identified as “Farm (predominantly dairy 922, “nonreserve forests (undeveloped).”
products),” code 8150.  8Code 841--”Fisheries and marine products” include those establish-
b. If 50 percent or more of the value of the farm products sold in ments primarily engaged in commercial fishing, the catching or taking
the previous year came from the sale of livestock, wool, or mohair, of shellfish, or the gathering of seaweed, sponges, turtles, frogs, etc.
the farm is identified as “Farms and ranches (livestock, other than These activities may include some preliminary processing, e.g., salting.
the farm is identified as “Farms and ranches (livestock, other than However, any extensive processing, packing, canning, or manufacturing
dairy),” code 816. of these products should be coded under “Food and kindred products--
c. If 50 percent or more of the value of the farm products sold in manufacturing,” code 21. These categories also include the docking
the previous year came from the sale of poultry and eggs, the farm facilities and their associated areas when these facilities are an integral
is identified as “Farms (predominantly poultry),” code 8170. part of a single fishery operation. When docking facilities serve several
d. If the percentage of dairy, livestock, and poultry products, separate fishery establishments, they are coded 4414, “Marine terminals
  
each came to less than 50 percent of the value of the farm products (predominantly fishing vessels).”
sold in the previous years, and if there are 3 or more “Farm uses”   9Code 85--”Mining activities and related services” include those
(e.g., corn crop, cotton crop, etc.) within a farm, none of which takes surface areas being used for mining or drilling purposes. the process
up 25 percent of the total farm area (excluding those areas referred may be tunnel excavation, strip mining, quarrying, or by drilling,
to above), the farm is identified as “Farms (general--no predomi- These categories also include those areas where preliminary processing
nance),” code 8180. of raw materials (e.g., washing, crushing, screening, etc.) are taking
  4Code 8191--”Range and grass land pastures (not form or ranch)” place if these processes are an integral part of the mining operation.
include grasslands used for grazing purposes that are not a part of a
 
SIC Land*
Code CategoryCodeCategoryCodeCategoryReference1Class
            
91 Undeveloped and unused910Undeveloped and unused land9100Undeveloped and unused land area----  U
land area (excluding non- area (excluding noncommer- (excluding noncommercial forest
commercial forest devel- cial forest development). development).2
opment).
92 Noncommercial forest de-921Forest reserves.39211Forest reserves (wilderness areas).----  A
velopment. 9212Forest reserves (wildlife refuges).----
9219 Other forest reserves, NEC.----A
922 Nonreserve forests (undeveloped).9220Nonreserve forests (undeveloped).4----B
93 Water areas.931Rivers, streams, or creeks.9310Rivers, streams, or creeks.----U
932 Lakes.9320Lakes.5----
933 Bays or lagoons.9330Bays or lagoons.----
934 Oceans and seas.9340Oceans and seas.----
939 Other water areas, NEC.9390Other water areas, NEC.----
94 Vacant floor area.940Vacant floor area.9400Vacant floor area.----
95 Under construction.951Under construction (residential).9510Under construction (residential).6----
952 Under construction (nonresidential).9520Under construction (nonresidential).7----
99 Other undeveloped land990Other undeveloped land and 9900Other undeveloped land and water----  U
and water areas, NEC. water areas, NEC. areas, NEC.
See footnotes on following page. B-24
B. A STANDARD SYSTEM FOR IDENTIFYING AND CODING LAND USE ACTIVITIES -- TWO-, THREE-, AND FOUR-DIGIT
 
LEVELS -- Continued
 
 
FOOTNOTES   4Code 9220--”Nonreserve forests (undeveloped)” are major forested
  1The SIC codes are listed for purposes of reference. They are the areas not on a farm, ranch, or large estate with no commercial use made
codes in the SIC system that most nearly correspond to the 4-digit of the trees. It is recognized that other activities such as recreation or
land use activity indicated. (See ch. III, Se. A3, “The Use of Standard the grazing of livestock may also be taking place within these forested
Industrial Classification Nomenclature.”) A dash indicates that there areas. However, these types of activities are considered secondary in
is no corresponding SIC code. nature and not coded. Activities such as mining (code 85), permanent
  2Code 9100--”Undeveloped and unused land area (excluding non- camping areas (code 7491), and logging camps (code 2410), located
commercial forest development)” identifies those parcels of land that within these forested areas should be separately identified.
appear to be undeveloped or if previously developed, are presently   5Code 9320--”Lakes” include permanent lakes (natural or manmade)
vacant and unused. This category includes such areas as vacant lands with a minimum size of 1 acre. Impounded surface water areas used
that once were farms, as well as vacant parcels where structures have for storage should be identified as “Water storage,” code 4833.
been demolished. Vacant nonresidential buildings are coded 9400,   6Code 9510--Residential facilities under construction are considered
“Vacant floor area.” to be completed when all exterior windows and doors are installed and
  3Code 921--”Forest reserves” are forested areas withdrawn from the usable floors are in place. If construction has not reached this
commercial utilization, and which are reserved through statute or admin- point, the parcel should be identified as “Under construction (resi
istrative regulation for specific conservation purposes. Forested areas dential),” code 9510
designated as park sites may also be restricted from commercial forestry   7Code 9520--”Under construction (nonresidential)” is used only if
production, but because of their designation for recreational activity there is no means of identifying the activity or activities that will
they should be identified and coded as “Parks” (code 76). occupy the structure when it is completed.

(Source: Amended at 30 Ill. Reg. _____________, effective _______________)
 

TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE H: NOISE

Back to top


CHAPTER I: ILLINOIS POLLUTION CONTROL BOARD
 

PART 910
MEASUREMENT PROCEDURES FOR THE ENFORCEMENT
OF 35 ILL. ADM. CODE 900 & 901
 



Section

910.100 General
910.102 Instrumentation
910.103 Definitions
910.104 Measurement Techniques for 35 Ill. Adm. Code 900
910.105 Measurement Techniques for 35 Ill. Adm. Code 901
910.106 Protocols for Determination of Sound Levels
910.107 Measurement Techniques for Highly-Impulsive Sound Under 35 Ill. Adm. Code 104
910.APPENDIX A
Tables of Long-Term Background Ambient Noise
 
910. TABLE A Daytime long-term background ambient Leq levels in decibels by land use categories and 1/3 octave-band level
910. TABLE B Nighttime long-term background ambient Leq levels in decibels by land use categories and 1/3- octave-band level
910. TABLE C Daytime long-term background ambient Leq levels in decibels by land use categories and octave-band level
910. TABLE D Nighttime long-term background ambient Leq levels in decibels by land use categories and octave-band level

AUTHORITY: Implementing and authorized by Sections 25 and 27 of the Environmental Protection Act [415 ILCS 5/25 and 27]
 
SOURCE: Adopted at 30 Ill. Reg. __________, effective________________.
 

 
Section 910.100 General

This Part specifies the instrumentation to be used when conducting acoustical noise measurements and sets forth the specific acoustical measurement techniques to be employed when conducting time-averaged sound level (Leq) measurements. The instrumentation requirements and measurement techniques as more specifically set forth in this Part must be used in determining whether a noise source is in compliance with 35 Ill. Adm. Code 900 and 901.
 



Section 910.102  Instrumentation
 


a)  Sound Measuring Equipment
 

 
1) An integrating sound level meter used alone or used in conjunction with an octave-band or 1/3 octave-band filter set or a real-time sound analyzer (octave-band or 1/3 octave-band) must conform with the following standards incorporated by reference at 35 Ill. Adm. Code 900.106:
    
A) ANSI S1.4 – 1983 (R2001) “American National Standard Specification for Sound Level Meters”, and ANSI S1.4 A-1985 “Amendment to ANSI S1.4-1983.”
B) ANSI S1.11 - 1986 (R1998) “American National Standard Specifications for Octave-Band and Fractional-Octave-Band Analog and Digital Filters.”
C) ANSI S1.6 – 1984 (R2001) “American National Standard Preferred Frequencies, Frequency Levels, and Band Numbers for Acoustical Measurements.”
D) ANSI S1.8 - 1989 “American National Standard Reference Quantities for Acoustical Levels.”
 
E) International Electrotechnical Commission, IEC 804-2000 Integrating/Averaging Sound level meters.
 
2) A magnetic tape recorder, graphic level recorder or other indicating device used must meet the requirements of the Society of Automotive Engineers (SAE) Recommended Practice J184 “Qualifying a Sound Data Acquisition System,” November 1998, incorporated by reference at 35 Ill. Adm. Code 900.106
 
3) The laboratory calibration of instrumentation used for acoustic measurement must be traceable to the National Bureau of Standards, and must be performed no less often than once every 12 months.
 
4) For outdoor measurement, a windscreen must be attached to the microphone.

b)  Weather Measuring Equipment
 

   
1) An anemometer and compass or other devices must be used to measure wind speed and direction in accordance with the manufacturer's recommended procedures.
2) A thermometer, designed to measure ambient temperature, must be used in accordance with the manufacturer's recommended procedures.
3) A hygrometer must be used in accordance with the manufacturer's recommended procedures to measure the relative humidity.
4) A barometer must be used in accordance with the manufacturer's recommended procedures to measure the barometric pressure.
   
Section 910.103 Definitions
The definitions contained in 35 Ill. Adm. Code 900.101 apply to this Part.
Section 910.104 Measurement Techniques for 35 Ill. Adm. Code 900

Sound pressure level measurements are not required to establish a violation of 35 Ill. Adm. Code 900.102 (nuisance noise). However, sound pressure level measurements may be introduced as corroborating evidence when alleging a violation of 35 Ill. Adm. Code 900.102. If sound pressure level measurements are collected, manufacturer’s instructions must be followed for the equipment used and 35 Ill. Adm. Code 910.105 may be used as guidance in gathering data.
 

 
Section 910.105 Measurement Techniques for 35 Ill. Adm. Code 901

Sound pressure level measurements must be obtained in accordance with the following measurement techniques to determine whether a noise source is in compliance with 35 Ill. Adm. Code 901:
 

 
a) Site Selection
   
1) Measurements may be taken at one or more microphone positions within the appropriate receiving land. Measurement instruments must be set up outdoors within the boundaries of the receiving land for the purpose of determining whether a noise source is in compliance with 35 Ill. Adm. Code 901.
2) Measurement instruments must be set up not less than 25 feet (7.6 meters (m)) from the property-line-noise-source. The 25-foot (7.6 m) setback requirement is from the noise source and not the property line unless the noise source is contiguous to the property line.
3) Other measurement locations may be used for investigatory purposes such as, but not limited to, the following:
   
A) Determining the extent of noise pollution caused by the source of sound;
B) Determining the ambient; and
C) Analyzing those acoustical parameters that describe the sound source.
   
4) For measurements of sound sources with no audible discrete tones, microphones should not be set up less than 25 feet (7.6 m) from any reflective surface that may affect data. If measurements must be taken within 25 feet (7.6 m), the effect, if any, of the reflective surface on the measured data must be determined.
5) For measurements of sound sources with audible discrete tones, microphones must not be set up less than 50 feet (15.2 m) from any reflective surface that may affect data. If measurements must be taken within 50 feet (15.2 m), the effect, if any, of the reflective surface on the measured data must be determined.
6) Objects with small dimensions (trees, posts, bushes, etc.) must not be within 5 feet (1.5 m) of the microphone position. If measurements must be taken within 5 feet (1.5 m) of such objects, the effect, if any, on the measured data must be determined.
 
b) Instrumentation Set Up
 
1) A tripod must be set at the chosen site. The tripod must be extended to a height between 3 feet 8 inches (1.12 m) and 4 feet 10 inches (1.47 m) above ground.
   
2) A microphone must be attached to the appropriate end of a 5-foot (1.5 m) or longer cable and must be affixed to the top of the tripod. The other end of the cable must be connected to the measuring instrument.
3) The angle of incidence of the microphone must be adjusted to yield the flattest frequency response in accordance with the manufacturer’s specifications.
4) The measuring instrument must be separated from the microphone so as to minimize any influence on the measurements. The cable movement must be minimized during the measurement period.
 
c) Measurement Site Operation and Instrument Calibration
 
1) Before taking sound pressure level measurements, measure and record (near the measurement site):
    
A) Wind speed and direction;
B) Ambient temperature;
C) Relative humidity; and
D) Barometric pressure.
    
2) Turn the measuring instrument on and allow the instrument to stabilize. Monitor and record the battery condition of the calibrator and all measuring instruments.
3) Turn the calibrator on at its appropriate frequency. Allow the calibrator to stabilize and calibrate the measuring system according to the manufacturer's specifications. After the measuring system has been calibrated, remove the calibrator and attach a windscreen to the microphone.
4) Adjust the microphone to the angle of incidence that will yield the frequency response in accordance with the manufacturer's specifications.
5) Measure the sound pressure level data within the limitations of subsection (d) and according to the manufacturer's recommended procedures. Other sound pressure levels may be used for investigatory purposes such as, but not limited to, the following:
   
A) Determining the extent of noise pollution caused by the source of sound;
B) Determining the ambient; and
C) Analyzing those acoustical parameters that describe the sound source.
       
6) While sound measurements are being taken, the operator must be separated from the microphone so as to minimize any influence on the measurements.
7) While measurements are being taken, visual and aural surveillance of extraneous sound sources and varying wind conditions must be made to insure that the conditions of measurement are accurately known. Record any variations in these parameters that may affect data. The number and basis for affected data block must be recorded. When using a tape recorder, voice commentary concerning conditions will be recorded on the cue track.
8) To minimize wind effects on the microphone, sound measurements must not be taken when the wind velocity is greater than 12 miles per hour (5.4 m/second) at the microphone position.
9) For the purposes of data correction, the ambient sound at the measurement site must be determined by means of measurement or analysis.
10) After taking sound pressure level measurements, remove the windscreen and attach the calibrator to the microphone. Turn the calibrator on at its appropriate frequency. After allowing the calibrator to stabilize, monitor and record the measuring system response. When the measuring system response varies by more than + 0.5 dB from the most recent field calibration, the sound pressure level measurements obtained since such most recent field calibration cannot be used for enforcement purposes.
11) Before removing the calibrator from the microphone, turn the calibrator off. If the ambient sound has not been determined by means of measurement, determine the noise floor of the measuring system. If the noise floor is within 10 dB of the measured sound pressure level data, such noise floor measurements must be recorded.
12) At the end of the sound survey, monitor and record the battery condition of the calibrator and all measuring instruments. Near the measurement site, measure and record:
    
A) Windspeed and direction;
B) Ambient temperature;
C) Relative humidity; and
D) Barometric pressure.
  
13) Record the physical and topographical description of the ground surface within the vicinity of the measurement site, survey site location, a description of the sound source, a diagram of the area, the location of reflective surfaces near the microphone, and the approximate location of the noise source relative to the microphone position.
14) A magnetic tape recorder may be used to preserve the raw data. Calibration signals must be recorded at the beginning and end of each tape as well as at intermediate times such as when relocating to a new measurement site. Voice commentary concerning local conditions and affected data blocks must be recorded on the cue track. The original tape recording must be preserved for subsequent evaluation. Laboratory analyses may be performed on magnetic tape recorded field data. A description of the laboratory instrumentation and procedures must be recorded. Analyses used in the laboratory must be correlated to field measurement techniques.
 
d) Limiting Procedures for Specific Types of Data Acquisition
  
1) For measurements of non-impulsive sound with audible discrete tones, 1/3 octave-band sound pressure levels must be obtained in determining whether a noise source is in compliance with 35 Ill. Adm. Code 901.106.
2) For measurements of non-impulsive sound with no audible discrete tones, octave-band sound pressure levels must be obtained in determining whether a noise source is in compliance with 35 Ill. Adm. Code 901.102 and 901.103.
 
e) Correction Factors

If necessary, correction factors rounded to the nearest 1/2 decibel must be applied to sound pressure level measurements. The correction factors applicable to the measurement system may include, but are not limited to, corrections for windscreen interference and the sound pressure level difference between consecutive field calibrations. Such calibration correction factors must only be used to make negative corrections (subtraction from the field data). In no case must such calibration correction factors be added to the measured sound pressure levels so as to raise the sound pressure level field data. The correction factors applicable to the measurement site may include, but are not limited to, corrections for reflective surfaces and ambient sound.
 



Section 910.106  Protocols for Determination of Sound Levels
 

 
a) The raw data collection procedures for the determination of equivalent continuous sound pressure level (Leq) are described in this Section using as an example the determination of a 1-hour Leq corrected for ambient. The following procedures must be used:

1)  Using small blocks:
 

 
A) The 1-hour interval is divided into many small blocks of time so that corruption of the data from short-term background transient  sound and loss of data can be limited to the corrupted or bad blocks. The block duration in seconds must remain fixed for any measurement hour. The duration must be neither less than 10 seconds nor greater than 100 seconds. For example, if the block duration is chosen to be 60 seconds (1 minute), then the data collection proceeds for 60, 1-minute periods of measurement.
   
B) The collected data for each block represents a block duration Leq (or sound exposure level (SEL)) in octave-bands (or 1/3 octave-bands if prominent discrete tones may be present).
C) Data for any block corrupted by one or more short-term background transient sounds must be deleted.
D) After deleting corrupted data blocks, there will be a fixed number of “good” data blocks remaining. This number is designated as NPLNS, where PLNS stands for Property-Line-Noise-Source. These remaining “good” blocks must be numbered consecutively. The subscript i is used to denote the numbering of the blocks in time order after corrupted data blocks have been deleted.
 
E) The data for the NPLNS remaining blocks are time averaged on an energy basis by octave (or 1/3 octave-band) using Equation 1 below. In this equation, two subscripts are used, i to designate time and j to designate the specific frequency, either an octave-band or 1/3 octave-band. The raw, 1-hour Leq in the jth frequency band is given by:

  [Equation 1]
 
where Leq is the Leq in the jth frequency band for the ith non-deleted data block.
 

F) In terms of SEL, the raw SEL in the jth frequency band is given by:    

[Equation 2]
 

 
G) The raw, 1-hour Leq in the jth frequency band is given in terms of the corresponding SELj by:

[Equation 3]
 
Where T is the block duration in seconds, NPLNS is the number of non-discarded data blocks, and 3600 is the number of seconds in an hour.
 
2)  Continuous Data Collection:
 

   
A) The measuring instrument must be adjusted to continuously measure sound pressure and accumulate Leq for each block of time. For convenience, the hour may be split into several smaller blocks such as 10, 6-minute blocks or 4, 15-minute blocks, etc.
B) A switch on the measuring instrument must be available to inhibit data collection whenever a short-term background transient sound occurs. This switch shall be used to prevent short-term background ambient sounds from corrupting the data.
C) Data collection must proceed for one hour. The energy average of the several measured Leqij each weighted by the number of seconds actually accumulated during the ith block results in the raw, 1-hour Leq in each frequency band given by:

[Equation 4]
 
Where Leqij is the Leq in the jth frequency band for the ith large block. Ti is the actual number of seconds of “good” data accumulated in the ith block of time (e.g., 6 to 15 minutes); and
 
[Equation 5]
 

 
3) Minimum data collection requirements:
 
A) Initial Measurement Duration. The property-line-noise-source measurements must proceed initially for one hour. Because of correction for short-term background transient sounds, actual reported data collection time T, in seconds, may be less than 3600 seconds (one hour).
 
i) If small blocks of data are used for data collection, then the total measurement duration in seconds, TPLNS, is given by NPLNS T, where T is the length of each block in seconds and NPLNS is the number of non-discarded blocks. If data inhibition is used for data collection, then TPLNS is the number of non-inhibited seconds during the measurement hour. In either case, TPLNS must be no less than 900 seconds.
  
ii) If very few blocks were used for data collection, then the duration of each block, T, may be too long and should be reduced.
iii) For either data collection method, sounds considered to be short-term transient may actually be part of the long-term background ambient and should be so redefined.
 
B) Extended Measurement Duration. If TPLNS is less than 900 seconds during the first hour of measurements, the raw data collection procedures must be appropriately modified and new measurements must proceed for an additional hour. If TPLNS after combining the first and the second hour of measurements is also less than 900 seconds, then the raw data collection must continue using the data inhibition method or method employed during the second hour until TPLNS is greater than or equal to 900 seconds.
 
4) Correction for Long-Term Background Ambient Sound:
 
A) The raw 1-hour Leq must be corrected for long-term background ambient sound. The subsection below describes methods to obtain the long-term background ambient sound level in the jth frequency band. The correction is dependent on the difference (in decibels) between the raw, 1-hour, jth band property-line-noise-source: Leqj and corresponding jth band long-term background ambient sound level. The correction to be applied is as follows:
   
i) If the difference between the raw 1-hour Leq and the long-term background ambient sound is larger than 10 decibels, then the correction must be set to 0.
ii) If the difference between the raw 1-hour Leq and the long-term background ambient sound difference is less than 3 decibels, then the jth frequency-band level, Leqj, must be set equal to 0.
iii) If the difference between the raw 1-hour Leq and the long-term background ambient sound is between 3 and 10 decibels, then the correction given in Table 1 below must be subtracted from the raw, 1-hour property-line-noise-source Leqj


Table 1

Corrections in dB for long-term


background ambient sound
 
 
Difference
Correction
 
(dB)
(dB)
 
3
3
 
4
2.3
 
5
1.7
 
6
1.3
 
7
1.0
 
8
0.7
 
9
0.6
 
10
0.5
 
B) The long-term background ambient corrected level must be the property-line-noise-source Leqj reported for the jth frequency band.

b)  Obtaining the background ambient sound level:
 

 
1) The background ambient must be measured for the purposes of this Section during a 10-minute interval.
 
2) Long-term background ambient measurement procedures are similar to procedures to measure the property-line-noise-source itself. Eliminating short-term background ambient transient sounds from the measurement of average long-term background ambient sound proceeds in a manner similar to the measurement of the property-line-noise-source emissions themselves. The two methods for measurement are: to divide the 10-minute measurement into short blocks of data, or inhibit data collection when short-term background transient sounds occur. The same method must be used for gathering both the property-line-noise-source data and the corresponding long-term background ambient data. The measurement procedures for each method are given in subsections (b)(3), (b)(4) and (b)(5) of this Section:
 
3) Using Small Blocks of Data
 
A) The 10-minute measurement of long-term background ambient must be divided into short measurement blocks. The duration of these blocks must remain constant during the entire measurement, both when measuring the long-term background ambient and when measuring the property-line-noise-source. The duration of this measurement block in seconds, T, must divide exactly (without remainder) into 600 and must be neither greater than 100 seconds nor less than 10 seconds.
 
B) All data for any measurement block corrupted by one or more short-term ambient transient sounds must be discarded. The number of remaining, non-discarded measurement blocks is designated NBA, where BA stands for background ambient.
 
C) The Leq for each octave-(or 1/3 octave-) band are time-averaged on an energy basis over the NBA remaining measurement blocks to obtain average long-term background ambient Leq per band. Equation 1 (see subsection (a) (1) (E) of this Section) is used for this calculation with NBA replacing NPLNS as the number of elemental blocks to be summed. The total duration of the measurement in seconds, TBA, is given by NBA multiplied by T.

4)  Continuous Data Collection
 

 
A) The measuring instrument must be adjusted according to manufacturer’s instructions to continuously measure sound pressure and accumulate (i.e. record) Leq. A switch must be available to inhibit data collection whenever a short-term background transient sound occurs, (and on some instruments, a button may be available to delete the most recent, previous data).
   
B) The switches or buttons must be used to prevent short-term background ambient sounds from corrupting the data.
C) Data collection must proceed for 10 minutes. The result is the 10-minute, long-term background ambient Leq in each band.
D) TBA is the number of non-inhibited measurement seconds during the 10-minute measurement period.
 
5) The minimum duration, for either method, TBA must be no less than 150 seconds. If TBA is less than 150 seconds, then the measurement of the long-term background ambient must continue beyond the original 10 minutes and until TBA for the total long-term background ambient measurement is greater than or equal to 150 seconds.
 
6) Measurement Alternatives. The long-term background ambient noise should ideally be measured at the potential violation site just before measurement of the property-line-noise-source emissions. However, turning off the property-line-noise-source may not always be possible. The following are a hierarchical order of five procedures for obtaining the long-term background ambient noise. The first four procedures involve direct measurement; the fifth procedure provides for use of tables of values obtained from extensive measurements. These are not equivalent procedures but are ordered from what is considered to be the most accurate to what is considered to be the least accurate procedure.
 
A) Direct Measurement Procedure –1: With the property-line-noise-source (PLNS) turned off, measure the long-term background ambient noise within the hour before or within the hour after measurement of the PLNS emissions at the location where the PLNS measurements are being taken and with the measurement equipment used for the PLNS measurements.
    
B) Direct Measurement Procedure-2: With the PLNS turned off, measure the long-term background ambient during a similar time period in terms of background ambient sound level, within one to 24 hours before, or within one to 24 hours after measurement of the PLNS emissions at the location where the PLNS measurements are being taken and with the measurement equipment used for the PLNS.
C) Direct Measurement Procedure- 3: With the PLNS turned off, measure the long-term background ambient during some other acoustically similar period within one to 30 days before, or within one to 30 days after measurement of the PLNS emissions. This alternate long-term background ambient measurement time might be a Saturday night or anytime during a Sunday or holiday. The measurements would be made at the location where the PLNS measurements are being taken and with the measurement equipment (or like equipment) used for the PLNS measurement.
D) Direct Measurement Procedure-4: With the PLNS turned off, measure the long-term background ambient noise during some other acoustically similar period within 30 to 90 days before, or within 30 to 90 days after measurement of the PLNS emissions. These measurements would be made at the location where the PLNS measurements are being taken and with the measurement equipment (or like equipment) used for the property-line-noise-source measurements.
E) Tables of Long-Term Background Ambient Noise. Where none of the alternatives can be used, use the applicable long-term background ambient data taken from Tables A through D in Appendix A of this Part. These tables are organized by predominant land use and time of day (daytime or nighttime). There are separate tables for octave- and 1/3- octave-bands. The background environments presented in the table are based on extensive measurements conducted in the Chicago area and are divided into the five categories given below in accordance with G.L. Bonvallet, “Levels and Spectra of Traffic, Industrial, and Residential Area Noise,” Journal of the Acoustical Society of America, 23 (4), pp 435-439, July 1951; and Dwight E. Bishop and Paul D. Schomer, Handbook of Acoustical Measurements and Noise Control, Chapter 50, Community Noise Measurements, 3rd Edition, Cyril M Harris, Editor, McGraw-Hill Book Co., New York (1991).
     
i) Category 1: Noisy Commercial and Industrial Areas. Very heavy traffic conditions, such as in busy downtown commercial areas, at intersections of mass transportation and other vehicles, including the Chicago Transit Authority trains, heavy motor trucks and other heavy traffic, and street corners where motor buses and heavy trucks accelerate.
ii) Category 2: Moderate Commercial and Industrial Areas, and Noisy Residential Areas. Heavy traffic areas with conditions similar to subsection (b)(6)(E)(i) of this Section but with somewhat less traffic, routes of relatively heavy or fast automobile traffic but where heavy truck traffic is not extremely dense, and motor bus routes.
iii) Category 3: Quiet Commercial and Industrial Areas, and Moderate Residential Areas. Light traffic conditions where no mass transportation vehicles and relatively few automobiles and trucks pass, and where these vehicles generally travel at low speeds. Residential areas and commercial streets and intersections with little traffic comprise this category.
iv) Category 4: Quiet Residential Areas. These areas are similar to Category 3 in subsection (b)(6)(E)(iii) of this Section but, for this group, the background is either distant traffic or is unidentifiable.
v) Category 5: Very Quiet, Sparse Suburban or Rural Areas. These areas are similar to Category 4 subsection (b)(6)(E)(iv) of this Section but are usually in unincorporated areas and, for this group, there are few if any near neighbors.
 
Section 910.107 Measurement Techniques for Highly-Impulsive Sound Under 35 Ill. Adm. Code 901.104.
 
a) Measurement of highly-impulsive sound under 35 Ill. Adm. Code 901.104 can be made in two distinct and equally valid ways, namely the general method and the controlled test method.
 
b) General Method: The general method is to measure the 1-hour, A-weighted Leq (not the octave- or 1/3 octave-band levels) using essentially one of the two procedures described in Sections 910.105 and 910.106.

1)  The procedure using small blocks of time to collect data is as follows:
 

   
A) The hour must be divided into small blocks and the A-weighted Leq must be measured for each of these small blocks of time. Leq must be measured for the entire hour but data collection must be inhibited whenever a short-term background transient sound occurs.
B) The duration of each block must be held constant during the hour. This duration in seconds must divide exactly into 900 and must be neither greater than 100 seconds nor less than 10 seconds.
C) The data for any block corrupted by one or more short-term background ambient sounds must be discarded.

2)  The continuous data collection procedure is as follows:
 
A)  Leq must be measured for the entire hour.
 

 
B) Data collection must be inhibited whenever a short-term background transient sound occurs.
 
3) Correction for the long-term background ambient must be accomplished using all of the other procedures and requirements enumerated in Sections 910.105 and 910.106. These requirements must be complied with to determine an A-weighted, 1-hour, background-ambient-corrected Leq for the highly impulsive property-line-noise-source under study.

c)  Controlled Test Method: For this method, the following procedures must be used:
 
1)  General Measurement Description
 

    
A) The sound exposure per impulse from each separate individual impulsive source is measured.
B) The total sound exposure per hour from each source is the sound exposure per event multiplied by the number of events per hour.
C) The grand total sound exposure (SE) per hour is the sum of the sound exposures per hour from each of the separate individual sources.
D) The reported SEL is obtained from the grand total sound exposure (SE) per hour using the following:

SEL = 10 log (SE) + 94      [Equation 7]
 

 
E) The equivalent level, Leq corresponding to a SEL measured or predicted for one hour (3600 seconds) is given by:

Leq = SEL - 10 log (3600)      [Equation 8]
 
2)  Determination of sound exposure per event must be as follows:
 

 
A) The sound exposure per event from each, separate, individual source must be determined by measuring the total A-weighted sound exposure for about 10 repetitions of this source. This set of about 10 measurements may be performed continuously over a short period of time, or this set of measurements may be performed over a discontinuous set of measurement periods. In either case, the total measurement duration must be less than 100 seconds.
  
B) These separate, individual property-line-noise- source controlled measurements must be free of any short-term ambient sounds. If any short-term background transient sounds occur during these measurements, then the measurement must be repeated until measurement data, free of any corrupting short-term background ambient sounds, are obtained.
C) The total measured A-weighted sound exposure for this group of about 10 repetitions must be corrected for long-term background ambient by subtracting the A-weighted long-term background ambient sound exposure. The sound exposure value subtracted must be the long-term A-weighted background ambient sound exposure per second multiplied by the number of seconds used to measure the several source repetitions.
   
D) The reported Source: A-weighted sound exposure per event must be the total corrected sound exposure divided by the number of source repetitions measured.
E) The background ambient must be measured for a short time, at least 30 seconds as near in time to the source measurements as possible, but within ½ hour. The total A-weighted long-term background ambient sound exposure per second is the total measured long-term background ambient sound exposure divided by the number of seconds of background ambient measurement.
F) There must be no short-term background ambient sounds present during the measurement of the long-term background ambient. If any short-term background transient sounds occur during these measurements, then the measurements must be repeated until long-term background ambient measurement data free of any corrupting short-term background ambient sound are obtained.

910.APPENDIX A Tables of Long-Term Background Ambient Noise
 



910.TABLE A. Daytime long-term background ambient Leq levels in decibels by land use categories and 1/3 octave-band level
 
Background Category
Octave-Band Center Frequency (Hz)
1
2
3
4
5
           
20
63
56
48
42
36
25
64
57
49
43
37
31
65
58
50
44
38
           
40
65
58
51
44
38
50
66
59
51
45
39
63
66
59
52
46
40
           
80
67
60
52
46
40
100
68
60
53
47
41
125
67
59
52
46
40
           
160
66
59
52
46
40
200
66
58
51
45
39
250
65
58
50
44
38
           
315
64
57
49
43
37
400
63
55
48
42
36
500
62
54
46
40
34
           
630
61
53
44
38
32
800
60
51
42
36
30
1000
58
49
40
34
28
           
1250
56
47
38
32
26
1600
54
45
36
30
24
2000
52
43
33
28
21
           
2500
50
41
30
25
19
3150
49
39
28
23
17
4000
48
37
25
20
15
           
5000
46
35
23
18
13
6300
44
33
21
16
10
8000
43
31
19
14
8
           
10,000
41
29
17
12
6
12,500
39
27
15
10
4

910. APPENDIX A Tables of Long-Term Background Ambient Noise
910.TABLE B. Nighttime long-term background ambient Leq levels in decibels by land use categories and 1/3 octave-band level
 
 
Background Category
Octave-Band Center Frequency (Hz)
1
2
3
4
5
           
20
53
48
43
37
31
25
54
49
44
38
32
31
55
50
45
39
33
           
40
55
50
46
39
33
50
56
51
46
40
34
63
56
51
47
41
35
           
80
57
52
47
41
35
100
58
52
48
42
36
125
57
51
47
41
35
           
160
56
51
47
41
35
200
56
50
46
40
34
250
55
50
45
39
33
           
315
54
49
44
38
32
400
53
47
43
37
31
500
52
46
41
35
29
           
630
51
45
39
33
27
800
50
43
37
31
25
1000
48
41
35
29
23
           
1250
46
39
33
27
21
1600
44
37
31
25
19
2000
42
35
28
23
16
           
2500
40
33
25
20
14
3150
39
31
23
18
12
4000
38
29
20
15
10
           
5000
36
27
18
13
8
6300
34
25
16
11
5
8000
33
23
14
9
3
           
10,000
31
21
12
7
1
12,500
29
19
10
2
 
           

910. APPENDIX A Tables of Long-Term Background Ambient Noise
 
910.TABLE C. Daytime long-term background ambient Leq levels in decibels by land use categories and octave-band level
 
Background Category
Octave-Band Center Frequency (Hz)
1
2
3
4
5
           
31
70
63
55
49
43
63
71
64
57
51
45
125
72
64
57
51
45
250
70
63
55
49
43
500
67
59
51
45
39
1000
63
54
45
39
33
2000
57
48
38
33
26
4000
53
42
30
25
20
8000
48
36
24
19
13

910. APPENDIX A Tables of Long-term Background Ambient Noise
 
910.TABLE D. Nighttime long-term background ambient Leq levels in decibels by land use categories and octave-band level
 
 
Background Category
Octave-Band Center Frequency (Hz)
1
2
3
4
5
           
31
60
55
50
44
38
63
61
56
52
46
40
125
62
56
52
46
40
250
60
55
50
44
38
500
57
51
46
40
34
1000
53
46
40
34
28
2000
47
40
33
28
21
4000
43
34
25
20
15
8000
38
28
19
14
8

 IT IS SO ORDERED.
 
 I, Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, certify that the Board adopted the above opinion and order on January 19, 2006, by a vote of 4-0.      
 
           
           Dorothy M. Gunn, Clerk
           Illinois Pollution Control Board

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