ILLINOIS POLLUTION CONTROL BOARD

TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE H: NOISE
1. CHAPTER I: POLLUTION CONTROL BOARD
  1. PART 900
  2. GENERAL PROVISIONS
a\)American National Standards Institution, 25 e
1. _
  1. _
    1. Section 900.APPENDIX AOld Rule Numbers Referenced
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE H: NOISE
1. CHAPTER I: POLLUTION CONTROL BOARD

October 3, 2002

IN THE MATTER OF: )

)

NOISE RULE UPDATE: ) R03-8

AMENDMENTS TO 35 ILL. ADM. ) (Rulemaking - Noise)

CODE 900 AND 903 )

Proposed Rule. Proposal for Public Comment.

ORDER OF THE BOARD (by M.E. Tristano):

Pursuant to 35 Ill. Adm. Code Part 102 Subpart B and Sections 27 and 28 of the Illinois

Environmental Protection Act, 415 ILCS 5/27-5/28 (2000), the Illinois Pollution Control Board

opened this rulemaking to amend and update the Board’s noise rules.

The noise rules affected are set forth at 35 Ill. Adm. Code 900 and 903. These are

general provisions dealing with the definitions of acoustical terminology, prohibition against

noise pollution, and sound measurement procedures. The proposed changes involve the updating

of definitions and sound measurement procedures. These definitions and measurement

procedures were adopted in 1973 and have not been amended or changed since then. The basis

for these changes is the American National Standards Institute updates from the years 1998-

2001.

The Board also proposes to repeal Part 903, which specifies rules and regulations for the

control of noise from motor racing facilities. Since the adoption of these rules, Section 25 of the

Environmental Protection Act has been modified to exclude organized sporting events, including

motor racing facilities from the Board’s noise regulations.

The Board adopts this proposal for public comment. The Board intends to hold two

hearings on the proposal, one in Chicago and one in Springfield. Interested persons are

encouraged to contact the hearing officer to be added to the notice list in this docket.

TITLE 35: ENVIRONMENTAL PROTECTION

SUBTITLE H: NOISE

CHAPTER I: POLLUTION CONTROL BOARD

Prohibition of Noise Pollution

900.103 Measurement Procedures

900.104

Burden of Persuasion Regarding Exceptions

900.105

900.106

Severability

Incorporations by Reference

APPENDIX A

OLD RULE NUMBERS REFERENCED

AUTHORITY: Implementing Section 25 and authorized by Section 27 of the Environmental

Protection Act (Ill. Rev. Stat. 1985, ch. 111 1/2, pars. 1025 and 1027).

SOURCE: Originally filed as Part 1 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. 13579; amended in R83-7

at 11 Ill. Reg. 3121, effective January 28, 1987; amended in R03-08 at ____ Ill. Reg. ___,

effective ________.

Section 900.101 Definitions

Except as hereinafter stated and unless a different meaning of a term is clear from its context, the

definitions of terms used in this Chapter are the same as those used in the Environmental

Protection Act. All definitions of acoustical terminology must be in conformance with those

contained in American National Standards Institute (ANSI) S1.1 - 199460 (R1999) "American

National Standard Acoustical Terminology" and S12.9- 1988 (R1998) “American National

Standard Quantities and Procedures for Description and Measurement of Environmental Sound -

Part 1”, incorporated by reference at Section 900.106. As used in 35 Ill. Adm. Code 900

through 910 905, the following terms mean:

A-Weighted Sound Level: dB(A), in decibels, a frequency weighted ten (10) times the

logarithm to the base 10 of the square of the ratio of the A-weighted (and time-averaged)

sound pressure level, to the reference sound pressure of 20 micropascal. The frequency

and time weighting must be determined by the use of the metering characteristics and A-

weighted network specified in accordance with ANSI §1.4-1971 (R. 1976) S1.4–1983

(R2001)" American National Standard Specification for Sound Level Meters",

incorporated by reference at Section 900.106 and the latest revisions thereof. The unit of

sound level is the decibel (dB) with the letter (A) appended to the decibel unit symbol to

indicate the weighting and written as dB(A).

AHRA: American Hot Rod Association or its successor body.

“Ambient”: the all-encompassing sound associated with a given

environment without the noise source of interest.

“Angle of incidence”: the orientation of the microphone relative to the

sound source.

ANSI: American National Standards Institute or its successor bodies.

Antique vehicle: a motor vehicle that is more than 25 years of age or a

bona fide replica thereof and which is driven on the highways only

going to and returning from an antique auto show or an exhibition, or for

servicing or demonstration, or a fire-fighting vehicle more than 20 years

old which is not used as fire-fighting equipment but is used only for the

purpose of exhibition or demonstration.

Background Sound Level: the A-weighted sound level, measured in

accordance with the procedures specified in Section 900.103, which is

exceeded 90 percent of the time during the period of observation, during

which sounds from motor racing facilities are inaudible. The period of

observation need not necessarily be contiguous; however, the period of

observation must be at least of 10 minutes duration.

C-weighted Sound Level: in decibels, a frequency weighted sound

pressure level, determined by the use of the metering characteristics and

C-weighted network specified in ANSI document §1.4-1971 S1.4-1983

(R2001. 1976) " American National Standard Specification for Sound

Level Meters.", incorporated by reference at Section 900.106.

"Construction: on-site erection, fabrication, installation, alteration,

demolition or removal of any structure, facility, or addition thereto,

including all related activities including, but not restricted to, clearing of

land, earth-moving, blasting and landscaping.

Daytime hours: 7:00 am to 10:00 pm, local time.

dB(A): A-weighted Sound Level in decibels."

Dealer: every person engaged in the business of selling vehicles to

persons who purchase such vehicles for purposes other than resale, and

who has an established place of business for such activity in this state.

Decibel (dB): a unit of measure, on a logarithmic scale to the base 10,

of the ratio of the magnitude of a particular sound pressure to a standard

reference pressure, which, for purposes of this Chapter, shall be 20

micronewtons per square meter (uN/m

Drag racing: any acceleration contest between two racing vehicles

racing from a standing start over a precisely measured, straight line

course.

Drag racing facility: any motor racing facility upon which is conducted

drag racing.

Drag racing vehicle: any racing vehicle which is participating in a drag

race at a drag racing facility.

Exhaust system: the system comprised of a combination of components

which provides for the enclosed flow of exhaust gas from engine parts to

the atmosphere.

Existing motor racing facility: any motor racing facility, the

construction of which commenced prior to August 10, 1973.

Existing property-line- noise-source: any property-line-noise-source,

the construction or establishment of which commenced prior to August

10, 1973. For the purposes of this sub-section, any property-line-noise-

source whose A, B or C land use classification changes, on or after

August 10, 1973, is be considered an existing property-line-noise-

source.

Farm tractor: every motor vehicle designed and used primarily as a farm

implement for drawing wagons, plows, mowing machines and other

implements of husbandry, and every implement of husbandry which is

self-propelled.

Fast Dynamic Characteristic: the dynamic characteristic specified as

fast in ANSI §S1.4-198371 (R2001. 1976) " American National

Standard Specification for Sound Level Meters", incorporated by

reference at Section 900.106 and the latest revision thereof.

Fast meter response: as specified in ANSI §1.4-1971, S1.4–1983

(R2001) “American National Standard Specification for Sound Level

Meters”, incorporated by reference at Section 900.106 or subsequent

revisions.

“Fluctuating sound”: a class of nonsteady sound where sound pressure

level varies over a range greater than 6 decibels (dB) with the “slow”

meter characteristic, and where the meter indication does not equal the

ambient level more than once during the period of observation.

Frequency-weighted sound pressure: root mean square of the

instantaneous sound pressure which is frequency-weighted (i.e. filtered)

with a standard frequency characteristic (e.g., A or C) and exponentially

time-weighted in accordance with the standardized characteristics slow

(S), fast (F), impulse (I) or peak, with both weightings specified in

accordance with ANSI S1.4–1983 (R2001) “American National

Standard Specification for Sound Level Meters”, incorporated by

reference at Section 900.106. The frequency weighting used shall be

specified explicitly (e.g., A, C or octave band).. The unit frequency

weighted sound pressure is the pascal (Pa).

Gross Vehicle Weight (GVW): the maximum loaded weight for which a

motor vehicle is registered or, for vehicles not so registered, the value

specified by the manufacturer as the loaded weight of the vehicle.

Highway: the entire width between the boundary lines of every way

publicly maintained when any part thereof is open to the use of the

public for purposes of vehicular travel.

“Intermittent sound”: a class of nonsteady sound where the meter

indicates a sound pressure level equal to the ambient level two or more

times during the period of observation. The period of time during which

the level of the sound remains at a value different from that of the

ambient is of the order of one second or more.

Leq: equivalent continuous sound pressure in decibles: ten times the

logarithm to the base ten of the ratio of a time mean square sound

pressure to the square of reference sound pressure. The reference

pressure is 20 micronewtons per-square meter level or equivalent

continuous frequency-weighted sound pressure level. .

Leq (A): A-weighted time-average (equivalent-continuous) sound level.

Leq (octave band-Hz): time-average (equivalent-continuous) sound

level in the octave band specified by its center frequency e.g. Leg (125-

Hz).

Midget racing vehicle: a front engine, single seat, openwheel racing car

smaller and of lesser engine displacement then standard cars of the type.

Motor racing facility: any facility or course upon which is conducted

motor racing activities or events.

Motor driven cycle: every motorcycle, motor scooter, or bicycle with

motor attached, with less than 150 cubic centimeter piston displacement.

Motorcycle: every motor vehicle having a seat or saddle for the use of

the rider and designed to travel on not more than 3 wheels in contact

with the ground, but excluding a tractor.

Motorcycle racing facility: any motor racing facility upon which is

conducted motorcycle racing, except oval racing facilities or drag racing

facilities.

Muffler: a device for abating the sounds of escaping gases of an internal

combustion engine.

NHRA: National Hot Rod Association or its successor body.

New motor racing facility: any motor racing facility, the construction of

which commenced on or after August 10, 1973.

New snowmobile: a snowmobile, the equitable or legal title to which

has never passed to a person who purchases it for purposes other than

resale.

Nighttime hours: 10:00 pm to 7:00 am, local time.

“Noise floor”: the electrical noise (in decibles) of the sound

measurement system. When the noise floor is determined by placing a

calibrator over the microphone of the sound measurement system, the

noise floor may include acoustic noise due to leakage around the

calibrator.

Noise pollution: the emission of sound that unreasonably interferes with

the enjoyment of life or with any lawful business or activity.

“Nonsteady sound”: a sound whose sound pressure level shifts

significantly during the period of observation. Meter variations are

greater than +- 3 dB using the “slow” meter characteristic.

Octave band sound pressure level: the sound pressure level for the

sound being measured contained within the specified octave band. The

reference pressure is 20 micronewtons per square meter.

Oval racing: any contest between two or more racing vehicles on a

closed or oval racing surface.

Oval racing facility: any motor racing facility, upon which is conducted

oval racing.

Oval racing vehicle: any racing vehicle which is participating in an oval

race at an oval racing facility.

Pascal (Pa): a unit of pressure. One pascal is equal to one newton per

square meter.

Passenger car: a motor vehicle designed for the carrying of not more

than ten persons, including a multi-purpose passenger vehicle, except

any motor vehicle of the second division as defined in Ill. Rev. Stat.

1981, ch. 95-1/2, par. 1-146, and except any motorcycle or motor

driven cycle. t+1

“Period of observation”: the time interval during which acoustical data

are obtained. The period of observation is determined by the

characteristics of the noise being measured and must be at least ten

times as long as the response time of the instrumentation. The greater

the variation in indicated sound level, the longer must be the observation

time for a given expected precision of the measurement.

Person: any individual, corporation, partnership, firm, association, trust,

estate, public or private institution, group, agency, political subdivision

of this State, any other State or political subdivision or agency thereof or

any legal successor, representative, agent or agency of the foregoing.

Preferred frequencies: those frequencies in Hertz preferred for

acoustical measurements which, for the purposes of this Chapter, consist

of the following set of values: 20, 25, 31.5, 40, 50, 63, 80, 100, 125,

160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500,

3150, 4000, 5000, 6300, 8000, 10,000, 12,500.

Prominent discrete tone: sound, having a one-third octave band sound

pressure level which, when measured in a one-third octave band at the

preferred frequencies, exceeds the arithmetic average of the sound

pressure levels of the two adjacent one-third octave bands on either side

of such one-third octave band by:

5 dB for such one-third octave band with a center

frequency from 500 Hertz to 10,000 Hertz, inclusive.

Provided: such one-third octave band sound pressure

level exceeds the sound pressure level of each adjacent

one-third octave band, or;

8 dB for such one-third octave band with a center

frequency from 160 Hertz to 400 Hertz, inclusive.

Provided: such one-third octave band sound pressure

level exceeds the sound pressure level of each adjacent

one-third octave band, or;

15 dB for such one-third octave band with a center

frequency from 25 Hertz to 125 Hertz, inclusive.

Provided: such one-third octave band sound pressure

level exceeds the sound pressure level of each adjacent

one-third octave band.

Property-line-noise-source: any equipment or facility, or

combination thereof, which operates within any land used as

specified by 35 Ill. Adm. Code 901.101. Such equipment or

facility, or combination thereof, must be capable of emitting sound

beyond the property line of the land on which operated.

“Quasi-steady sound”: a train of two or more acoustical impulses.

Examples of quasi-steady sound are that from riveting and

pneumatic hammer.

Racing vehicle: every self-propelled device, in, upon or by which

any person may be transported and which is participating in a

motor racing activity or event at a motor racing facility.

“Reflective surface”: any building, hillside, or similar object

(other than the flat ground surface) that reflects sufficient sound to

affect the sound pressure level readings obtained from a noise

source. Not included as reflective surfaces are small objects such

as trees, posts, chain-linked fences, fire hydrants, vegetation such

as bushes and shrubs, or any similar object.

Registered: a vehicle is registered when a current registration

certificate or certificates and registration plates have been issued

for it under the laws of any state pertaining to the registration of

vehicles.

Residential dwelling unit: all land used as specified by Standard

Land Use Coding Manual (SLUCM) Codes 110 through 190 and

those portions of land used as specified by SLUCM Code 6741

used for sleeping.

SAE: Society of Automotive Engineers.

Slow Dynamic Characteristic: the dynamic characteristic specified

as "Slow" in ANSI document §1.4-1971 (R. 1976) S1.4–1983

(R2001) " American National Standard Specification for Sound

Level Meters.", incorporated by reference at Section 900.106.

SLUCM: the Standard Land Use Coding Manual which

designates land activities by means of numerical codes.

Snowmobile: a self-propelled device designed for travel on snow

or ice or natural terrain steered by skis or runners, and supported in

part by skis, belts, or cleats.

Sound: A physical disturbance causing an oscillation in pressure in

a medium (e.g., air) that is capable of being detected by the human

ear or a sound measuring instrument.

Sound Exposure: time integral of squared, frequency-weighted

instantaneous sound pressure over a given time interval. The time

period of integration must be specified: when the sound exposure

of the background noise is a significant contributor to the total

sound exposure; or when the threshold sound level of the

instrument (a level below which the instrument does not

accumulate contributions to the integral) used is above the level of

the background noise; or when such data is needed to identify a

source; or when the time period of integration is otherwise useful.

The customary unit for sound exposure is pascal-squared second

(Pa

-s). .

Sound exposure level (SEL or Let): ten (10) times the logarithm to

the base 10 of the ratio of sound exposure to the reference sound

exposure (Eo) of 400 micropascal-squared seconds (uPa2-s). For a

given measurement time period of T seconds, the sound exposure

level (let ) is related to the time-average sound level (Lpt) as

follows: Ler = Lpt + log (T/to) where to is the reference duration of

1 second. The time period of intergration (T) must be specified.

The frequency weighting used must be specified explicitly (e.g.,

A, C or octave band. The A-weighted SEL and C-weighted SEL

are abbreviated ASEL and CSEL respectively. An octave band

SEL is expressed in terms of the center frequency (e.g., SEL at

125-Hz). The unit for sound exposure level is decibel (dB).

Sound level (weighted sound pressure level): in decibels, a

weighted sound pressure level, determined by the use of metering

characteristics and frequency weightings specified in ANSI §1.4-

1971 "Specification for Sound Level Meters." twenty (20) times

the logarithm to the base 10 of the ratio of the frequency weighted

(and time-averaged) sound pressure to the reference pressure of 20

micropascal. The frequency weighting used shall be specified

explicitly (e.g., A, C or octave band). The unit for sound level is

decibel (dB).

Sound pressure: the root mean square of the instantaneous sound

pressures during a specified time interval in a stated frequency

band. The unit for sound pressure is pascal (Pa).

Sound pressure level: in decibels, twenty (20) times the logarithm

to the base 10 of the ratio of the magnitude of a particular sound

pressure to the standard reference sound pressure of 20

micropascal. The standard reference pressure is 20 micronewtons

per square meter. ANSI S12.9- 1988 (R1998) “American National

Standard Quantities and Procedures for Description and

Measurement of Environmental Sound - Part 1”, incorporated by

reference at Section 900.106, reserves the term sound pressure

level to denote the un-weighted sound pressure. The unit for sound

pressure level is decibel (dB).

Special mobile equipment: every vehicle not designed or used

primarily for the transportation of persons or property and only

incidentally operated or moved over a highway, including but not

limited to: ditch digging apparatus, well-boring apparatus and road

construction and maintenance machinery such as asphalt spreaders,

bituminous mixers, bucket loaders, tractors other than truck

tractors, leveling graders, finishing machines, motor graders, road

rollers, scarifiers, earth-moving carryalls and scrapers, power

shovels and drag lines, and self-propelled cranes and other earth-

moving equipment.

Special-motor-racing-event: any motor racing event held on two

consecutive days or less in which a substantial number of out-of-

state motor racing vehicles are competing and which has been

designated as such a special-motor-racing-event by the owner or

operator of the motor racing facility.

Sports car: any automobile which meets the requirements and

specifications of the General Competition Rules of the Sports Car

Club of America, or its successor body, or any other sports car

organization.

Sports car racing: any competitive event involving one or more

sports cars.

Sports car racing facility: any motor racing facility upon which is

conducted sports car racing.

Sports car racing vehicles: any racing vehicle which is

participating in a sports car race at a sports car racing facility.

Sprint racing vehicle: a front-engined open wheel racing car used

especially on short dirt tracks.

Supercharged racing vehicle: a racing vehicle equipped with a

blower or compressor for increasing the volume air charge of an

internal combustion engine over that which would be drawn in

through the pumping action of the pistons.

“Steady sound”: a sound whose sound pressure level remains

essentially constant (that is, meter fluctuations are negligibly

small) during the period of observation. Meter variations are less

than or equal to +- 3 dB suing the “slow” meter characteristic.

Tactical military vehicle: every vehicle operated by any federal or

state military organization and designed for use in field operations,

but not including vehicles such as staff cars and personnel carriers

designed primarily for normal highway use.

Time-average sound level (or equivalent-continuous sound level or

equivalent-continuous frequency-weighted sound pressure level):

twenty (20) times the logarithm to the base 10 of the ratio of the

time-average (frequency-weighted) sound pressure to the reference

pressure of 20 micropascal. The frequency weighting used must be

specified explicitly (e.g., A, C or octave band). The unit of time-

average sound level is the decibel (dB).

Time-average (frequency-weighted) sound pressure: square root of

the quotient of the time integral of frequency-weighted squared

instantaneous sound pressures divided by the time period of

integration; or the square root of the quotient of the sound

exposure, in pacal-squared seconds (Pa

–s), in a specified time

period, divided by the time period of integration in seconds. The

frequency weighting used must be specified explicitly (e.g., A, C

or octave band). The unit of time-average sound pressure is the

pascal (Pa).

Unregulated safety relief valve: a safety relief valve used and

designed to be actuated by high pressure in the pipe or vessel to

which it is connected and which is used and designed to prevent

explosion or other hazardous reaction from pressure buildup, rather

than being used and designed as a process pressure blowdown.

Used motor vehicle: a motor vehicle that is not a new motor

vehicle.

Vehicle: every device in, upon, or by which any person or

property is or may be transported or drawn upon a highway.

Weekday: any day which occurs during the period of time

commencing at 10:00 p.m. Sunday and ending at 10:00 p.m.

Friday during any particular week.

Weekend day: any day which occurs during the period of time

commencing at 10:00 p.m. Friday and ending at 10:00 p.m.

Sunday during any particular week.

Well-maintained muffler: any muffler which is free from defects

which affect its sound reduction. Such muffler shall be free of

visible defects such as holes and other acoustical leaks.

(Source: Amended at 6 Ill. Reg. 10960, effective September 1, 1982)

Section 900.102 Prohibition of Noise Pollution

No person shall cause or allow the emission of sound beyond the boundaries of his property, as

property is defined in Section 25 of the Illinois Environmental Protection Act, so as to cause

noise pollution in Illinois, or so as to violate any provision of this Chapter.

Section 900.103 Measurement Procedures

a) Procedures Applicable to all of 35 Ill. Adm. Code: Subtitle H, Chapter I

The Agency may adopt procedures which set forth criteria for the measurement of

sound for all Parts except 35 Ill. And. Code 900 and 901. Such procedures shall

be in substantial conformity with standards and recommended practices

established by the American National Standards Institute, Inc. (ANSI) or the

Society of Automotive Engineers, Inc. (SAE), incorporated by reference at

Section 900.106. and the latest revisions thereof, including ANSI S1.1-1960,

ANSI §1.8-1969, ANSI §1.2-1962, and SAE J-184. Such procedures shall be

revised from time to time to reflect current engineering judgment and advances in

noise measurement techniques. Such procedures, and revisions, thereof, shall not

become effective until filed with the Administrative Code Division of the Office

of the Secretary of State as required by the Illinois Administrative Procedure Act

Ill. Rev. Stat. 1985, ch. 127, par. 1001 et. seq. Measurement Procedures for

35 Ill. Adm. Code 900 and 901 shall conform to 35 Ill. Adm. Code 910.

b) Procedures Applicable only to 35 Ill. Adm. Code 901

1) All measurement and all measurement procedures to determine whether

emissions of sound comply with 35 Ill. Adm. Code 901 shall be in

substantial conformity with ANSI §1.6-1967, ANSI §1.4-1971 -- Type I

Precision, ANSI §1.11-1966, and ANSI §1.13-1971 Field Method, and

shall with the exception of measurements to determine whether emissions

of sound comply with 35 Ill. Adm. Code 901.109, be based on Leq

averaging, as defined in 35 Ill. Adm. Code 900.-101, using a reference

time of one hour. All such measurements and measurements procedures

for the 1-hr Leq must correct, or provide for the correction of such

emissions, for the presence of ambient or background noise as defined in

ANSI §1.13-1971 in accordance with the procedures in 35 Ill. Adm. Code

910. All measurements must be in conformity with the following ANSI

standards, incorporated by reference at Section 900.106:

A) ANSI S1.4-1983 (R2001) “American National Standard

Specification for Sound Level Meters.”

B) ANSI S1.6-1984 (R2001) “American National Standard Preferred

Frequencies, Frequency Levels, and Band Numbers for Acoustical

Measurements.”

C ANSI S1.11-1986 (R1998) “American National Standard

Specification for Octave-Band and Fractional-Octave-Band

Analog and Digital Filters.”

D ANSI S1.13-1995 (R1999) “American National Standard

Measurement of Sound Pressure Level in Air.”

c) Procedures Applicable only to 35 Ill. Adm. Code 902

1) Measurement procedures to determine whether emissions of sound comply

with 35 Ill. Adm. Code 902.120 through 902.1223 must be in conformity

with the following ANSI standards incorporated by reference at Section

900.106: ANSI §1.4-1971 -- Type I Precision or Type II General Purpose,

and ANSI §1.13-1971 Field Method, provided that

A) ANSI S1.4-1983 (R2001) “American National Standard

Specification for Sound Level Meters.”

B) ANSI S1.13-1995 (R1999) “American National Standard

Measurement of Sound Pressure Level in Air.”

2) The

procedures for sound measurement under 35 Ill. Adm. Code 902.123

must conform to the ANSI standards prescribed in subsection (c)(1),

above, provided that the procedures are be in conformity with those

established by the U.S. Department of Transportation under 49 CFR 325

pursuant to Section 17 of the Federal Noise Control Act of 1972, 42

U.S.C. §4901 et seq.

32) The Agency may provide for measurement at distances other than the 50

feet specified in 35 Ill. Adm. Code 902.120 through 902.123 provided

that correction factors are applied so that the sound levels so determined

are substantially equivalent to those measured at 50 feet and the

measurement distance does not exceed 100 feet. The correction factors

used shall be consistent with California Highway Patrol Sound

Measurement Procedures HPH 83.1 (October 1, 1973, as amended

November 9, 1975), incorporated by reference at Section 900.106.

Procedures Applicable only to 35 Ill. Adm. Code 903

Measurement procedures for 35 Ill. Adm. Code 903 shall be in

substantial conformity with ANSI §1.4-1971 Type 1 Precision or Type 2

General Purpose and ANSI §1.13-1971 - Field Method.

The Agency may provide for measuring sound emission at distances other

than 50 feet specified in 35 Ill. Adm. Code 903.162, provided that

correction factors are applied so that the sound levels so determined are

substantially equivalent to those measured at 50 feet.

e) Procedures Applicable only to 35 Ill. Adm. Code 905

1) Measurement procedures to determine whether emissions of sound comply

with 35 Ill. Adm. Code 905.102(a) and 905.103(a)(1) must be in

conformity with the following standards incorporated by reference at

Section 900.106:ANSI §1.4-1971 Type 1 Precision or Type 2 General

Purpose and SAE Recommended Practice J192a, "Exterior Sound Level

for Snowmobiles".

A) ANSI S1.4-1983 (R2001) “American National Standard

Specification for Sound Level Meters.”

B) SAE Recommended Practice J192 “Exterior Sound Level for

Snowmobiles.” March 1985.

2) Measurement procedures to determine whether emissions of sound comply

with 35 Ill. Adm. Code 905.102(b) and 905.103(a)(2) shall be in

substantial conformity with the following standards incorporated by

reference at Section 900.106 incorporated by reference at Section 900.106:

ANSI §1.4-1971 Type 1 Precision or Type 2 General Purpose and SAE

Recommended Practice J1161, "Operational Sound Level Measurement

Procedure for Snow Vehicles".

A) ANSI S1.4-1983 (R2001) “American National Standard

Specification for Sound Level Meters.”

B) SAE/ANSI Recommended Practice J1161 “Operational Sound

Level Measurement Procedure for Snow Vehicles.” March 1983.

3) The Agency may establish criteria for measuring at distances other than

the 50 feet specified in 35 Ill. Adm. Code 905.102 and 905.103, provided

that correction factors are applied so that the sound levels so determined

are substantially equivalent to those measured at 50 feet. In adopting new

or revised criteria, the Agency shall comply with the requirements of the

Illinois Administrative Procedure Act, Ill. Rev. Stat. 1985, ch. 127, par.

1001 et seq.

(Source: Amended at 11 Ill. Reg. 3121, effective January 28, 1987)

Section 900.104 Burden of Persuasion Regarding Exceptions

In any proceeding pursuant to this Subtitle, if an exception stated in this Chapter would limit an

obligation, limit a liability, or eliminate either an obligation or a liability, the person who would

benefit from the application of the exception shall have the burden of persuasion that the

exception applies and that the terms of the exception have been met. The Agency shall

cooperate with and assist persons in determining the application of the provisions of this

Chapter.

Section 900.105 Severability

If any provision of this Chapter or its application to any person is adjudged invalid, the

adjudication does not affect the validity of this Chapter as a whole or of any portion not adjudged

invalid.

Section 900.106 Incorporation by Reference

The Board incorporates the following material by reference. These incorporations include no

later amendments or editions.

a) American National Standards Institution, 25 West 43rd Street, 4th Fl.

New York, New York, 10036. (212)-642-4900.

1) ANSI S1.1-1994 (R1999) “American National Standard Acoustical

Terminology.”

2) ANSI S1.4-1983 (R2001) “American National Standard Specification for

Sound Level Meters.”

3) ANSI S1.6-1984 (R2001) “American National Standard Preferred

Frequencies, Frequency Levels, and Band Numbers for Acoustical

Measurements.”

4) ANSI S1.8-1989 “American National Standard Reference Quantities for

Acoustical Levels.”

5) ANSI S1.11-1986 (R1998) “American National Standard Specification for

Octave-Band and Fractional-Octave-Band Analog and Digital Filters.”

6) ANSI S1.13-1995 (R1999) “American National Standard Measurement of

Sound Pressure Level in Air.”

ANSI S12.9- 1988 (R1998) “American National Standard Quantities and

Procedures for Description and Measurement of Environmental Sound -

Part 1.”

8) ANSI S12.31-1990 (R2001) “American National Standard Precision

Methods for the Determination of Sound Power Levels of Broad-Band

Noise Sources in Reverberation Rooms.”

9) ANSI S12.32-1990 (R2001) “American National Standard Precision

Methods for the Determination of Sound Power Levels of Discrete-

Frequency and Narrow-Band Noise Sources in Reverberation Rooms.”

b) Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA

15096. (877)-606-7323.

1) SAE Recommended Practice J184 “Qualifying a Sound Data Acquisition

System.” November 1998.

2) SAE Recommended Practice J192 “Exterior Sound Level for

Snowmobiles.” March 1985.

3) SAE/ANSI Recommended Practice J1161 “Operational Sound Level

Measurement Procedure for Snow Vehicles.” March 1983.

c) California Highway Patrol Sound Measurement Procedures HPH 83.1 (October 1,

1973, as amended November 9, 1975. Available at Illinois Pollution Control

Board’s Clerk’s Office, 100 W. Randolph Street, Suite 11-500, Chicago, IL

60601. (312) 814-3620.

Section 900.APPENDIX A Old Rule Numbers Referenced

The following table is provided to aid in referencing old Board rule numbers to section numbers

pursuant to codification.

Old Part 1 of Chapter 8

35 Ill. Adm. Code Part 900

TITLE 35: ENVIRONMENTAL PROTECTION

SUBTITLE H: NOISE

CHAPTER I: POLLUTION CONTROL BOARD

PART 903

RULES AND REGULATIONS FOR THE CONTROL OF NOISE FROM MOTOR

RACING FACILITIES (Repealed)

SUBPART A: OPERATIONAL PROCEDURES AND RACING WITHOUT MUFFLERS

Section

903.101 Operational Procedures

903.102

Racing Vehicles without Mufflers

SUBPART B: DRAG RACING FACILITIES

Section

903.120 Muffler Requirements

903.121

Sound Level Measurement Requirements

903.122

Sound Emission Limits

SUBPART C: OVAL RACING FACILITIES

Section

903.140 Muffler Requirements

903.141

Sound Level Measurement Requirements

903.142

Sound Emission Limits

SUBPART D: SPORTS CAR RACING FACILITIES

Section

903.160 Muffler Requirements

903.161

Sound Level Measurement Requirements

903.162

Sound Emission Limits

SUBPART E: MOTORCYCLE RACING FACILITIES

Section

903.180 Muffler Requirements

903.181

Sound Level Measurement Requirements

903.182

Sound Emission Limits

SUBPART F: EXCEPTIONS AND COMPLIANCE DATES FOR PART 903

Section

903.200 Exceptions

903.201

Compliance Dates for Part 903

APPENDIX A

OLD RULE NUMBERS REFERENCED

AUTHORITY: Implementing Section 25 and authorized by Section 27 of the Environmental

Protection Act (Ill. Rev. Stat. 1981, ch. 111 1/2, pars. 1025 and 1027).

SOURCE: Adopted at 2 Ill. Reg. 27, p. 233, effective June 26, 1978; codified at 7 Ill. Reg.

13579.

SUBPART A: OPERATIONAL PROCEDURES AND RACING WITHOUT MUFFLERS

Section 903.101 Operational Procedures

The owner or operator of a motor racing facility shall reduce noise emissions from the public

address system by using noise abatement methods and operational changes -- for example, by

reducing the volume of the loudspeaker system, by increasing the number of speakers so that the

volume of individual speakers can be further reduced, and by relocating and redirecting the

speakers away from residential property.

Section 903.102 Racing Vehicles without Mufflers

No person shall cause or allow the use or operation of any motor racing vehicle that does not

require a muffler in accordance with this Part in any motor racing event started after 10:30 p.m.

local time on any particular weekday or after 11:00 p.m. local time on any particular weekend

day.

SUBPART B: DRAG RACING FACILITIES

Section 903.120 Muffler Requirements

a) No person shall cause or allow the use or operation of any drag racing vehicle

equipped with a normally aspirated gasoline burning engine at a drag racing

facility unless such drag racing vehicle is equipped with a well-maintained and

properly installed muffler. Except for any motorcycle used as a drag racing

vehicle, all mufflers required in accordance with this subparagraph (a) shall meet

the requirements specified in subparagraph (b).

b) Except for any motorcycle used as a drag racing vehicle, all mufflers required in

accordance with subparagraph (a) shall have noise reducing characteristics which

will produce a reduction in total vehicle noise of at least the amount listed in the

following table when such drag racing vehicle is operated in a manner simulating

wide-open throttle competition. Such noise reduction shall be determined by

using measurement procedures specified in 35 Ill. Adm Code 900.103.

Total Vehicle Noise Reduction Requirements

for Mufflers Installed on Drag Racing Vehicles

(Except Motorcycles) During Wide-open

Throttle Acceleration Run

On and after March 15, 1979

Muffler only

Group A

On and after March 15, 1980

10 dB

Group A

On and after March 15, 1983

14 dB

Group B

On and after March 15, 1980

Muffler only

Group B

On and after March 15, 1981

10 dB

Group B

On and after March 15, 1983

14 dB

Group C

On and after March 15, 1981

Muffler only

Group C

On and after March 15, 1982

10 dB

Group C

On and after March 15, 1983

14 dB

1) Group A includes all drag racing vehicles in the National Hot Rod

Association (NHRA) classes of ET Bracket, Stock and Super Stock; the

International Hot Rod Association (IHRA) classes of ET Bracket, Stock

and Super Stock; the American Hot Rod Association (AHRA) classes of

Selectra, Stock, Super Street and Super Stock; and all other similar drag

racing vehicles.

2) Ground B includes all drag racing vehicles in the NHRA class of

Modified; the IHRA class of Super Modified; the AHRA class of

Modified/Street; and all other similar drag racing vehicles.

3) Group C includes all drag racing vehicles in the NHRA classes of

Competition and Pro Stock; the IHRA classes of Super Comp and Pro

Stock; the AHRA classes of Top Competition and Pro Stock; and all other

similar drag racing vehicles.

Section 903.121 Sound Level Measurement Requirements

a) The sound emissions from each drag racing vehicle required to have a muffler in

accordance with Section 903.120 must be measured before competing in terms of

A-weighted sound levels using sound level meters in conformance with American

National Standards Institute (ANSI) Standards §1.4 Type 1 or Type 2

requirements and using procedures specified in 35 Ill. Adm. Code 900.103. All

sound level measurements must be made with the microphone one-half meter

from the exhaust outlet with the engine gear-box in neutral at an engine speed of

4000 rpm. It shall be the responsibility of the drag racing facility's owners or

operators, or designated agent, to measure and record the required sound level

data. Upon reasonable request, the owner or operator shall make such recorded

sound level data available to the Agency. The owner and operator must keep such

recorded sound level data for the duration of the racing season.

b) The Agency shall publish techniques for determining compliance with Section

903.120 under static test conditions.

c) On and after March 15, 1979, before any motorcycle racing vehicle required to

have a muffler in accordance with Section 903.120 competes at a drag racing

facility, the noise emissions from such motorcycle racing vehicle must be

measured in terms of A-weighted sound levels using sound level meters in

conformance with ANSI Standards §1.4 Type 1 or Type 2 requirements and using

procedures specified in 35 Ill. Adm. Code 900.103. The microphone shall be

located one-half meter from and in the horizontal plane of the rearmost exhaust

outlet at an angle of 45 degrees behind the exhaust outlet and from the normal line

of travel of the motorcycle. The engine shall be run with the gear-box in neutral

at an engine speed equal to one-half of the manufacturer's-recommended-

maximum-engine-speed. If no manufacturer's-recommended- maximum-engine-

speed is published for a particular motorcycle, then an engine speed equal to 60

percent of the engine speed at which maximum horsepower is developed shall be

used. If no manufacturer's-recommended-maximum-engine-speed is published,

then the engine speed during the sound level measurement shall be calculated

from either of the following formulae:

Engine Speed = 306,000

stroke in millimeters

Engine Speed = 12,000

stroke in inches

Section 903.122 Sound Emission Limits

On and after March 15, 1979, no person shall cause or allow the use or operation of any

motorcycle racing vehicle required to have a muffler in accordance with Section 903.120 whose

sound emissions exceed 115 db(A) when measured in accordance with Section 903.121 and

when measured one-half meter from the rearmost exhaust outlet.

SUBPART C: OVAL RACING FACILITIES

Section 903.140 Muffler Requirements

a) Except as provided in subparagraph (b), no person shall cause or allow the use or

operation of any oval racing vehicle at an oval racing facility unless such oval

racing vehicle is equipped with a well-maintained and properly installed muffler.

Except for any motorcycle used as an oval racing vehicle, all mufflers required in

accordance with this rule shall meet the requirements specified in subparagraph

(c).

b) The following oval racing vehicles shall not require a muffler in accordance with

subparagraph (a);

1) Sprint racing vehicles;

2) Midget racing vehicles;

3) Supercharged oval racing vehicles.

c) Except for any motorcycle used as an oval racing vehicle, all mufflers required in

accordance with subparagraph (a) shall have noise reducing characteristics which

will produce a reduction in total vehicle noise of at least the amount listed in the

following table when such oval racing vehicle is operated in a manner simulating

wide-open throttle competition. Such noise reduction shall be determined by

using measurement procedures specified in 35 Ill. Adm. Code 900.103.

Wide-open Throttle Noise Reduction Requirements

for Mufflers Installed on Oval Racing Vehicles

(Except Motorcycles)

Date

Muffler Noise Reduction Requirement, dB

On and after March 15, 1979

Muffler only

On and after March 15, 1980

10 dB

On and after March 15, 1982

16 dB

Section 903.141 Sound Level Measurement Requirements

a) The requirements for measuring noise emissions from oval racing vehicles, other

than motorcycles used as oval racing vehicles, shall be identical to those specified

under Section 903.121(a) for drag racing vehicles.

b) The Agency shall publish techniques for determining compliance with Section

903.140 under static test conditions.

c) The requirements for measuring noise emissions from motorcycle racing vehicles

competing at oval racing facilities shall be identical to those specified under

Section 903.121(c) for motorcycle racing vehicles competing at drag racing

facilities.

Section 903.142 Sound Emission Limits

No person shall cause or allow the use or operation of any motorcycle racing vehicle required to

have a muffler in accordance with Section 903.140 whose sound emissions exceed 115 dB (A)

when measured in accordance with Section 903.141 and when measured one-half meter from the

rearmost exhaust outlet.

SUBPART D: SPORTS CAR RACING FACILITIES

Section 903.160 Muffler Requirements

a) Except as provided in subparagraph (b), on and after March 15, 1979, no person

shall cause or allow the use or operation of any sports car racing vehicle

competing at a sports car racing facility unless such sports car racing vehicle is

equipped with a well-maintained and properly installed muffler.

b) The following sports car racing vehicles shall not require a muffler in accordance

with subparagraph (a): all sports car racing vehicles which are supercharged.

Section 903.161 Sound Level Measurement Requirements

During all qualifying runs, noise emissions from each sports car racing vehicle required to have a

muffler in accordance with Section 903.160, must be measured in terms of A-weighted sound

levels using sound level meters in conformance with ANSI Standards §1.4 Type 1 or Type 2

requirements and using procedures specified in 35 Ill. Adm. Code 900.103. All measurements

must consistently be made at the same measurement site; provided, however, that such

measurement site can be changed if necessitated by good faith circumstances making the use of

the first measurement site impossible or impractical. It shall be the responsibility of the sports

car racing facility's owners or operators, or designated agent, to measure and record the required

sound level data. Upon reasonable request, the owner or operator shall make such recorded

sound level data available to the Agency. The owner and operator must keep such recorded

sound level data for the duration of the racing season.

Section 903.162 Sound Emission Limits

No person shall cause or allow the use or operation of any sports car racing vehicle required to

have a muffler in accordance with Section 903.160 whose sound emissions while accelerating, as

measured in accordance with Section 903.161, exceed 105 dB (A) when measured 50 feet from

the center of the lane of travel of such sports car racing vehicle while accelerating on the track.

SUBPART E: MOTORCYCLE RACING FACILITIES

Section 903.180 Muffler Requirements

a) Except as provided in subparagraph (b), on and after March 15, 1979, no person

shall cause or allow the use or operation of any motorcycle racing vehicle

competing at a motorcycle racing facility unless such motorcycle racing vehicle is

equipped with a well-maintained and properly installed muffler.

b) The following motorcycle racing vehicles shall not require a muffler in

accordance with subparagraph (a): supercharged motorcycle racing vehicles.

Section 903.181 Sound Level Measurement Requirements

The requirements for measuring noise emissions from motorcycle racing vehicles competing at

motorcycle racing facilities shall be identical to those specified under Section 903.121(c) for

motorcycle racing vehicles competing at drag racing facilities.

Section 903.182 Sound Emission Limits

No person shall cause or allow the use or operation of any motorcycle racing vehicle required to

have a muffler in accordance with Section 903.180 whose sound emissions exceed 115 dB (A)

when measured in accordance with Section 903.181 and when measured one-half meter from the

rearmost exhaust outlet.

SUBPART F: EXCEPTIONS AND COMPLIANCE DATES FOR PART 903

Section 903.200 Exceptions

a) Sections 903.120 through 903.182 shall not apply to any special-motor-racing-

events, provided that not more than three special-motor-racing-events are

conducted at any motor racing facility during any calendar year. The owner or

operator of any motor racing facility which is conducting a special-motor-racing-

event must previously notify the local public that a special-motor-racing-event

will be conducted.

b) Sections 903.120 through 903.182 shall not apply to motor racing facilities which

conduct motor racing events on fewer than five days per calendar year.

c) Sections 903.120 through 903.182 shall not apply to fairground motor racing

facilities during motor racing events held in conjunction with a state or county

fair.

d) Sections 903.102 through 903.182 shall not apply if there are no residential

dwelling units within two miles of such motor racing facility's racing surface.

e) Sections 903.102 through 903.182 shall not apply to any motor racing facility

whose sound emissions do not at any time exceed the background sound level by

more than 7 dB(A) at any residential dwelling unit.

f) Sections 903.102 through 903.182 shall not apply to any existing motor racing

facility whose sound emissions do not at any time exceed the allowable octave

band sound pressure levels specified in 35 Ill. Adm. Code 901.102(a) when

measured at any point within any receiving Class A land.

g) Sections 903.102 through 903.182 shall not apply to any new motor racing facility

whose sound emissions do not exceed at any time during daytime hours the

allowable octave band sound pressure levels specified in 35 Ill. Adm. Code

901.102(a) or at any time during the nighttime hours the allowable octave band

sound pressure levels specified in 35 Ill. Adm. Code 901.102(b) when measured

at any point within any receiving Class A land.

Section 903.201 Compliance Dates for Part 903

a) Every owner or operator of an existing motor racing facility shall comply with the

requirements of this Part by September 24, 1978.

b) Every owner or operator of a new motor racing facility shall comply with the

requirements of this Part when motor racing activities commence at such new

motor racing facility.

Section 903.APPENDIX A OLD RULE NUMBERS REFERENCED

The following table is provided to aid in referencing old Board rule numbers to section numbers

pursuant to codification.

Old Part 4 of Chapter 8

35 Ill. Adm. Code Part 903

I, Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, certify that the Board

adopted the above order on October 3, 2002, by a vote of 5-0.