1. ILLINOIS POLLUTION CONTROL BOARD
    2. ABBREVIATED PROCEDURAL BACKGROUND
      1. CONCLUSION
    3. Nact ≤ Nall
    4. Where:
    5. 1) Actual emissions must be determined as follows:
    6. EMact(i) = Eact(i) x Hi
    7. 2) Allowable emissions must be determined as follows:
    8. EMall(i) = Eall(i) x Hi
    9. Where:

 
ILLINOIS POLLUTION CONTROL BOARD
July 23, 2009
IN THE MATTER OF:
SECTION 27 PROPOSED RULES FOR
NITROGEN OXIDE (NO
x
) EMISSIONS
FROM STATIONARY RECIPROCATING
INTERNAL COMBUSTION ENGINES AND
TURBINES: AMENDMENTS TO 35 ILL.
ADM. CODE SECTION 201.146 AND
PARTS 211 AND 217
)
)
)
)
)
)
)
)
)
R07-19
(Rulemaking - Air)
Proposed Rule. Final Notice.
OPINION AND ORDER OF THE BOARD (by A.S. Moore):
Today the Board adopts its final notice in this rulemaking amending Parts 201, 211, and
217 of its air pollution regulations and addressing emissions of nitrogen oxides (NO
x
).
See
35
Ill. Adm. Code 201, 211, 217.
On December 20, 2007, the Illinois Environmental Protection Agency (Agency or IEPA)
filed a motion to proceed in this docket with an amended rulemaking proposal. The Board
granted the motion on January 10, 2008. After conducting two public hearings on the amended
proposal, the Board on September 16, 2008, adopted its first-notice opinion and order.
See
32
Ill. Reg. 17035-17104 (Oct. 31, 2009). At its meeting on July 14, 2009, the Joint Committee on
Administrative Rules (JCAR) considered the Board’s second notice proposal and issued its
Certificate of No Objection to the proposed rules.
The adopted regulations control NO
x
emissions from engines and turbines located at 100
ton per year sources located in the Chicago and Metro East/St. Louis nonattainment areas with a
capacity of 500 brake horsepower (bhp) or 3.5 megawatts (MW). In its motion to proceed with
an amended proposal, the Agency stated that its proposed regulations would help Illinois to meet
Clean Air Act (CAA) requirements for NO
x
reasonably available control technology (RACT)
under the eight-hour National Ambient Air Quality Standard (NAAQS) for ozone and would also
improve air quality by reducing precursors of fine particulate matter (PM
2.5
).
In this opinion, the Board first provides an abbreviated procedural background of this
rulemaking and the background of federal requirements. The Board then addresses technical and
economic considerations before reaching its conclusion. Finally, the Board directs the Clerk to
file the proposed amendments with the Secretary of State for publication in the
Illinois Register
.
ABBREVIATED PROCEDURAL BACKGROUND
On April 6, 2007, the Agency filed a rulemaking proposal intended to reduce emissions
of NO
x
from stationary reciprocating engines and turbines. The Board docketed the proposal as

2
R07-18. In an order dated May 17, 2007, the Board concluded that the Agency’s entire proposal
was not “required to be adopted” by the CAA under Section 28.5 of the Environmental
Protection Act (Act). 415 ILCS 5/28.5 (2006) (repealed Dec. 31, 2007). Accordingly, the Board
bifurcated the proposal and continued to consider in docket R07-18 under Section 28.5 “fast-
track” procedures only the portion of the proposal applicable to the 28 internal combustion
engines affected by the NO
x
State Implementation Plan (SIP) Call Phase II.
In a new docket, R07-19, the Board provided first-notice publication of the remainder of
the Agency’s proposal under the general rulemaking provisions of Sections 27 and 28 of the Act
(415 ILCS 5/27, 28 (2006)). Section 27 Proposed Rules for Nitrogen Oxide (NO
x
) Emissions
from Stationary Reciprocating Internal Combustion Engines and Turbines: Amendments to 35
Ill. Adm. Code Parts 211 and 217, R07-19, slip op. at 2, 34-35 (May 17, 2007);
see
31 Ill. Reg.
7683, 7702 (June 8, 2007). The Board’s opinion and order bifurcating the Agency’s original
proposal did not comment on the substantive merits of docket R07-19.
See
Section 27 Proposed
Rules for Nitrogen Oxide (NO
x
) Emissions from Stationary Reciprocating Internal Combustion
Engines and Turbines: Amendments to 35 Ill. Adm. Code Parts 211 and 217, R07-19, slip op. at
2, 34-35 (May 17, 2007)
.
The Board adopted final rules in R07-18 on September 20, 2007.
Fast-Track Rules Under Nitrogen Oxide (NO
x
) SIP Call Phase II: Amendments to 35 Ill. Adm.
Code Section 201.146 and Parts 211 and 217
, R07-18 (Sept. 20, 2007);
see
31 Ill. Reg. 14254-71
(Oct. 12, 2007).
On June 15, 2007, the hearing officer issued an order scheduling two hearings in R07-19
and setting deadlines for prefiled testimony. On August 23, 2007, the Agency filed a motion to
cancel the scheduled hearings and prefiling deadlines. In an order dated August 27, 2007, the
hearing officer granted the motion. At the direction of the hearing officer, the Agency
subsequently filed two status reports, a first on October 31, 2007, and a second on November 19,
2007, which indicated that the Agency would file an amended proposal with the Board before the
end of December 2007.
On December 20, 2007, the Agency filed its “Motion to Proceed with Amended Proposal
and Withdraw Testimony” (Mot. Amend). The motion included as Attachment B an amended
Technical Support Document (TSD). On January 3, 2008, the Illinois Environmental Regulatory
Group (IERG) filed its response to the Agency’s motion. In an order dated January 10, 2008, the
Board granted the Agency’s motion. In a letter dated January 23, 2008, the Board requested that
the Department of Commerce and Economic Opportunity (DCEO) conduct an economic impact
study of the amended proposal.
See
415 ILCS 5/27(b) (2008). The Board did not receive a
response to that request.
On March 26, 2008, the Board received prefiled testimony from four witnesses: Mr.
Robert Kaleel (Kaleel Test.) and Mr. Yoginder Mahajan on behalf of the Agency; Mr. Kevin
Wagner on behalf of the Illinois Municipal Electric Agency (IMEA); and Ms. Deirdre Hirner on
behalf of IERG. The first hearing in this proceeding took place on April 9, 2008, in
Edwardsville, Madison County. At the first hearing, the hearing officer admitted into the record
a single exhibit, a finding by the United States Environmental Protection Agency (USEPA) that
Illinois had failed to submit SIPs required under the eight-hour NAAQS for ozone (Exh. 1).
See

3
73 Fed. Reg. 15416-21 (Mar. 24, 2008). On April 14, 2008, the Board received the transcript of
the first hearing (Tr.1).
In an order dated April 17, 2008, the Board directed its Clerk to withdraw the proposed
amendments that the Board had originally sent to first-notice publication in this docket. Section
27 Proposed Rules for Nitrogen Oxide (NO
x
) Emissions from Stationary Reciprocating Internal
Combustion Engines and Turbines: Amendments to 35 Ill. Adm. Code Parts 211 and 217, R07-
19, slip op. at 1-2 (Apr. 17, 2008);
see
31 Ill. Reg. 7683, 7702 (June 8, 2007). On May 2, 2008,
the Secretary of State published notice of withdrawal of the proposed amendments. 32 Ill. Reg.
7230-31 (May 2, 2008).
On April 23, 2008, the Board received prefiled testimony from Mr. James McCarthy of
Innovative Environmental Solutions, Inc. on behalf of two natural gas transmission companies,
ANR Pipeline Company and Natural Gas Pipeline Company of America (collectively, the
Pipeline Group). The second hearing in this proceeding took place on May 7, 2008 in Chicago.
At the second hearing, the hearing officer admitted into the record one exhibit, a document
offered by the Agency and entitled “Clarifications and
Errata
Sheet.” The Board received the
transcript of the second hearing on May 8, 2008 (Tr.2).
In an order dated May 12, 2008, the hearing officer set a deadline of June 9, 2008 for
filing post-hearing comments and a deadline of June 23, 2008 for filing a response to post-
hearing comments. On June 9, 2008, the Board received post-hearing comments from the
Agency (PC 1), IMEA, and IERG. On June 23, 2008, the Board received a response to post-
hearing comments from the Agency. On July 1, 2008, the Board received a comment from Mr.
Don C. DiCristoforo of Blue Sky Environmental LLC (Blue Sky). On July 16, 2008, the Board
received from the Agency a motion for leave to file
instanter
a response to the comment filed on
behalf of Blue Sky, accompanied by the Agency’s response to that comment.
On September 16, 2008, the Board issued its first-notice opinion and order.
See
32 Ill.
Reg. 17035-74 (Oct. 31, 2008). In its opinion, the Board among other actions granted the
Agency’s July 16, 2008 motion for leave to file
instanter
a response to Blue Sky’s July 1, 2008
post-hearing comment and accepted that response into the record.
On December 12, 2008, IMEA and IERG filed a joint motion for an extension of time
requesting that the Board or hearing officer extend the deadline for filing first-notice comments.
In an order dated December 23, 2008, the hearing officer extended that deadline to February 2,
2009.
On December 22, 2008, the Board received a comment from Pamela F. Faggert, Vice
President and Chief Environmental Officer of Dominion Resources Services, Inc.
On February 5, 2009, the Agency filed its first-notice comments (PC 8), accompanied by
a motion to file
instanter
. On February 6, 2009, IERG filed its first-notice comments,
accompanied by a motion to file
instanter
. On February 10, 2009, the Agency filed a motion to
file
instanter
and its response to first-notice comments.

4
On March 19, 2009, the Agency filed a motion for expedited review and also submitted a
letter from USEPA regarding potential sanctions against the state (PC 11). On March 23, 2009,
the Agency also submitted a letter requesting that the Board expedite consideration of this
proposal in order to avoid federal sanctions. On March 24, 2009, the hearing officer issued an
order providing that, in order for the Board to address the Agency’s motion to expedite at its
April 2, 2009, meeting, participants wishing to respond to the Agency’s motion must file a
response by March 30, 2009. On March 24, 2009, the Pipeline Consortium filed its response
supporting the Agency’s motion to expedite. On March 30, 2009, IERG filed its response
expressing no objection to the Agency’s motion to expedite. On April 2, 2009, the Board granted
the Agency’s motion to expedite.
On May 21, 2009, the Board adopted its second notice opinion and order. In its opinion,
the Board among other actions granted the motions to file
instanter
filed by the Agency on
February 5, 2009, and February 10, 2009, and by IERG on February 6, 2009. On June 23, 2009,
the Agency filed comments on the second notice proposal with the Board.
At its meeting on July 14, 2009, JCAR considered the Board second notice proposal and
issued its “Certificate of No Objection.” JCAR proposed non-substantive amendments, which
the Board adopts in its order below.
BACKGROUND OF FEDERAL REQUIREMENTS
USEPA revised the NAAQS for PM
2.5
and ozone in 1997. TSD at 11 (§2.1), citing 62
Fed. Reg. 38652 (July 18, 1997) (PM
2.5
standards), 62 Fed. Reg. 38855 (July 18, 1997) (ozone
standards);
see
Kaleel Test. at 2. Upon establishing the NAAQS for PM
2.5
, USEPA designated
two areas in Illinois, Chicago and Metro East/St. Louis, as nonattainment areas.
1
TSD at 11,
id
.
at 12 (Figure 2-1). “These designations became effective on April 5, 2005.”
Id
. at 11, citing 70
Fed. Reg. 943 (Jan. 5, 2005). USEPA has since reviewed the NAAQS for PM
2.5
and
strengthened the 24-hour standard. Kaleel Test. at 2, citing 71 Fed. Reg. 61144 (Oct. 17, 2006).
“The revised NAAQS for ozone replaced the previous 1-hour averaging time with an 8-
hour averaging time, and reduced the applicable ambient concentration threshold from 0.12 parts
per million (ppm) to 0.08 ppm.” TSD at 11; Kaleel Test. at 2. USEPA has designated two areas
in Illinois, greater Chicago and Metro East/St. Louis, as moderate nonattainment areas for
ozone.
2
1
For the PM
2.5
NAAQS, the following jurisdictions comprise the greater Chicago nonattainment
area: Cook, DuPage, Kane, Lake, McHenry, and Will Counties, Aux Sable and Goose Lake
Townships in Grundy County, and Oswego Township in Kendall County. TSD at 11; Mot.
Amend at 2 n.1. The following Illinois jurisdictions comprise the Metro-East/St. Louis
nonattainment area: Madison, Monroe, and St. Clair Counties and Baldwin Township of
Randolph County. TSD at 11; Mot. Amend at 2 n.1.
TSD at 11,
id
. at 12 (Figure 2-2), Kaleel Test. at 2. “These designations became
effective on June 15, 2004.” TSD at 11, citing 69 Fed. Reg. 23858 (Apr. 3, 2004).
2
For the eight-hour ozone NAAQS, the following jurisdictions comprise the greater Chicago
nonattainment area: Cook, DuPage, Kane, Lake, McHenry, and Will Counties, Aux Sable and

5
“Under Section 110 of the CAA and related provisions, states are required to submit for
USEPA’s approval SIPs that provide for the attainment and maintenance of standards established
by USEPA through control programs directed to sources of the pollutant involved.” Kaleel Test.
at 3, citing 42 U.S.C. §7410. “USEPA has determined that, in addition to direct particulate
matter, that NO
x
, sulfur dioxide (SO
2
), VOCs [volatile organic compounds], and ammonia are
precursors to the formation of PM
2.5
.” Kaleel Test. at 2-3. Accordingly, states are required to
address issues including NO
x
emissions in their attainment plans under the 1997 PM
2.5
NAAQS.
Id
. at 3. “This rulemaking addresses NO
x
as a precursor to ozone and PM
2.5.
” TSD at 13 (§2.2).
The CAA includes provisions for the state to address emissions sources on an area-wide
basis through requirements including reasonably available control measures (RACM) and
reasonably available control technology (RACT). Kaleel Test. at 3, citing 42 U.S.C. §§ 7502,
7511a. In nonattainment areas,
the CAA requires the State to demonstrate that it has adopted ‘all reasonably
available control measures as expeditiously as possible (including such reductions
in emissions from existing sources in the area as may be obtained through the
adoption, at a minimum, of reasonably available control technology) and shall
provide for attainment of the national primary ambient air quality standards.’
Kaleel Test. at 3, citing 42 U.S.C. § 7502(c)(1).
Under Sections 172 and 182 of the CAA, “RACT is required for all existing major sources of the
applicable criteria pollutant and its precursors” in the nonattainment areas. TSD at 13. USEPA
has defined RACT as “the lowest emission limitation that a particular source is capable of
meeting by the application of control technology that is reasonably available considering
technological feasibility and economic reasonableness.” TSD at 13, citing 70 Fed. Reg. 71612
(Nov. 29, 2005). In moderate nonattainment areas such as Illinois’, the major source threshold is
100 tons per year. TSD at 13.
USEPA recently issued a “Finding of Failure to Submit State Implementation Plans (SIP)
Required for the 1997 8-Hour Ozone NAAQS.” PC 1 at 1, citing 73 Fed. Reg. 15416 (Mar. 24,
2008);
see
Exh. 1. This action issued a SIP call to all states with ozone nonattainment areas that
had failed to submit complete RACT SIPs and began the running of sanctions clock. Exh. 1, Tr.
1 at 7-8. USEPA’s SIP Call included both the greater Chicago and Metro East/St. Louis areas.
PC 1 at 3; 73 Fed. Reg. 15417-18;
see also
PC 11.
DISCUSSION
Although the Board in a letter dated January 23, 2008, requested that DCEO conduct an
economic impact study on the Agency’s amended rulemaking proposal (
see
415 ILCS 5/27(b)(1)
(2008)), the Board received no response to that request. At the second hearing, the Board
Goose Lake Townships in Grundy County, and Oswego Township in Kendall County. TSD at
11; Mot. Amend at 2 n.1. The following Illinois counties comprise the Metro-East/St. Louis
nonattainment area: Jersey, Madison, Monroe, and St. Clair. TSD at 11; Mot. Amend at 2 n.1.

 
6
received no testimony or comment regarding the absence of a response to the request.
See
Tr.2
at 16-17.
In its first-notice opinion and order, the Board addressed the technical feasibility and
economic reasonableness of the Agency’s amended proposal by considering a number of issues:
the technical feasibility of controls for both engines and turbines, potentially affected sources,
projected emission reductions, and the cost-effectiveness of controls on both engines and
turbines. Section 27 Proposed Rules for Nitrogen Oxide (NO
x
) Emissions from Stationary
Reciprocating Internal Combustion Engines and Turbines: Amendments to 35 Ill. Adm. Code
Section 201.146 and Parts 211 and 217, R07-19, slip op. at 20-31 (Sept. 16, 2008). The Board
concluded, after addressing those issues, that the first notice proposal was technically feasible
and economically reasonable.
Id
at 31.
In its second notice opinion and order, the Board adopted amendments to the first-notice
proposal that had been proposed by the Agency in its first notice comments.
See
PC 8. In those
comments, the Agency stated that consultation with participants had resulted in agreement on all
issues with the Pipeline Group and on all issues other than replacement units in averaging plans
with IERG.
Id
. Regarding that unresolved issue, the Board found the Agency’s proposed
language appropriately allows and encourages replacement of units with newer and cleaner units.
The Board agreed with the Agency that removing the requirement that a replacement unit be
used for the “same purpose,” as suggested by IERG, may not result in environmental benefits.
Accordingly, the Board declined to adopt alternate language proposed by IERG.
In its second notice opinion and order, the Board stated that it had adopted substantive
changes in the proposal only as offered by the Agency and reflecting consultation and agreement
with regulated entities. Thus, as it did in its first-notice opinion and order, the Board found the
proposed regulations to be technically feasible and economically reasonable.
Section 27
Proposed Rules for Nitrogen Oxide (NO
x
) Emissions from Stationary Reciprocating Internal
Combustion Engines and Turbines: Amendments to 35 Ill. Adm. Code Section 201.146 and
Parts 211 and 217
, R07-19, slip op. at 13 (May 21, 2009).
Since adopting that second notice opinion and order, the Board has adopted only non-
substantive amendments as proposed by JCAR. Thus, the Board finds the proposed regulations
technically feasible and economically reasonable and below directs the Clerk to file them with
the Secretary of State for publication in the
Illinois Register
.
CONCLUSION
The Board finds that the record supports proceeding to final notice with the proposed
amendments to the Board’s regulations governing emissions of NO
x
in Parts 201, 211, and 217
(35 Ill. Adm. Code 201, 211, 217).
ORDER

7
The Board directs the Clerk to file the following proposed amendments with the
Secretary of State for publication in the
Illinois Register
. Proposed additions are underlined, and
proposed deletions appear stricken.
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER a: PERMITS AND GENERAL PROVISIONS
PART 201
PERMITS AND GENERAL PROVISIONS
SUBPART A: DEFINITIONS
Section
201.101
Other Definitions
201.102
Definitions
201.103
Abbreviations and Units
201.104
Incorporations by Reference
SUBPART B: GENERAL PROVISIONS
Section
201.121
Existence of Permit No Defense
201.122
Proof of Emissions
201.123
Burden of Persuasion Regarding Exceptions
201.124
Annual Report
201.125
Severability
201.126
Repealer
SUBPART C: PROHIBITIONS
Section
201.141
Prohibition of Air Pollution
201.142
Construction Permit Required
201.143
Operating Permits for New Sources
201.144
Operating Permits for Existing Sources
201.146
Exemptions from State Permit Requirements
201.147
Former Permits
201.148
Operation Without Compliance Program and Project Completion Schedule
201.149
Operation During Malfunction, Breakdown or Startups
201.150
Circumvention
201.151
Design of Effluent Exhaust Systems
SUBPART D: PERMIT APPLICATIONS AND REVIEW PROCESS

8
Section
201.152
Contents of Application for Construction Permit
201.153
Incomplete Applications (Repealed)
201.154
Signatures (Repealed)
201.155
Standards for Issuance (Repealed)
201.156
Conditions
201.157
Contents of Application for Operating Permit
201.158
Incomplete Applications
201.159
Signatures
201.160
Standards for Issuance
201.161
Conditions
201.162
Duration
201.163
Joint Construction and Operating Permits
201.164
Design Criteria
201.165
Hearings
201.166
Revocation
201.167
Revisions to Permits
201.168
Appeals from Conditions
201.169
Special Provisions for Certain Operating Permits
201.170
Portable Emission Units
SUBPART E: SPECIAL PROVISIONS FOR OPERATING PERMITS FOR CERTAIN
SMALLER SOURCES
Section
201.180
Applicability (Repealed)
201.181
Expiration and Renewal (Repealed)
201.187
Requirement for a Revised Permit (Repealed)
SUBPART F: CAAPP PERMITS
Section
201.207
Applicability
201.208
Supplemental Information
201.209
Emissions of Hazardous Air Pollutants
201.210
Categories of Insignificant Activities or Emission Levels
201.211
Application for Classification as an Insignificant Activity
201.212
Revisions to Lists of Insignificant Activities or Emission Levels
SUBPART G: EXPERIMENTAL PERMITS (Reserved)
SUBPART H: COMPLIANCE PROGRAMS AND
PROJECT COMPLETION SCHEDULES
Section

9
201.241
Contents of Compliance Program
201.242
Contents of Project Completion Schedule
201.243
Standards for Approval
201.244
Revisions
201.245
Effects of Approval
201.246
Records and Reports
201.247
Submission and Approval Dates
SUBPART I: MALFUNCTIONS, BREAKDOWNS OR STARTUPS
Section
201.261
Contents of Request for Permission to Operate During a Malfunction, Breakdown
or Startup
201.262
Standards for Granting Permission to Operate During a Malfunction, Breakdown
or Startup
201.263
Records and Reports
201.264
Continued Operation or Startup Prior to Granting of Operating Permit
201.265
Effect of Granting of Permission to Operate During a Malfunction, Breakdown or
Startup
SUBPART J: MONITORING AND TESTING
Section
201.281
Permit Monitoring Equipment Requirements
201.282
Testing
201.283
Records and Reports
SUBPART K: RECORDS AND REPORTS
Section
201.301
Records
201.302
Reports
SUBPART L: CONTINUOUS MONITORING
Section
201.401
Continuous Monitoring Requirements
201.402
Alternative Monitoring
201.403
Exempt Sources
201.404
Monitoring System Malfunction
201.405
Excess Emission Reporting
201.406
Data Reduction
201.407
Retention of Information
201.408
Compliance Schedules
201.APPENDIX A
Rule into Section Table

10
201.APPENDIX B
Section into Rule Table
201.APPENDIX C
Past Compliance Dates
AUTHORITY: Implementing Sections 10, 39, and 39.5 and authorized by Sections 27 and 28 of
the Environmental Protection Act [415 ILCS 5/10, 27, 28, 39, and 39.5].
SOURCE: Adopted as Chapter 2: Air Pollution, Part I: General Provisions, in R71-23, 4 PCB
191, filed and effective April 14, 1972; amended in R78-3 and 4, 35 PCB 75 and 243, at 3 Ill.
Reg.30, p. 124, effective July 28, 1979; amended in R80-5, at 7 Ill. Reg. 1244, effective January
21, 1983; codified at 7 Ill. Reg. 13579; amended in R82-1 (Docket A) at 10 Ill. Reg. 12628,
effective July 7, 1986; amended in R87-38 at 13 Ill. Reg. 2066, effective February 3, 1989;
amended in R89-7(A) at 13 Ill. Reg. 19444, effective December 5, 1989; amended in R89-7(B)
at 15 Ill. Reg. 17710, effective November 26, 1991; amended in R93-11 at 17 Ill. Reg. 21483,
effective December 7, 1993; amended in R94-12 at 18 Ill. Reg. 15002, effective September 21,
1994; amended in R94-14 at 18 Ill. Reg. 15760, effective October 17, 1994; amended in R96-17
at 21 Ill. Reg. 7878, effective June 17, 1997; amended in R98-13 at 22 Ill. Reg. 11451, effective
June 23, 1998; amended in R98-28 at 22 Ill. Reg. 11823, effective July 31, 1998; amended in
R02-10 at 27 Ill. Reg. 5820, effective March 21, 2003; amended in R05-19 and R05-20 at 30 Ill.
Reg. 4901, effective March 3, 2006; amended in R07-19 at 32 Ill. Reg. _ ___, effective
_________.
SUBPART C: PROHIBITIONS
Section 201.146
Exemptions from State Permit Requirements
Construction or operating permits, pursuant to Sections 201.142, 201.143 and 201.144 of this
Part, are not required for the classes of equipment and activities listed below in this Section. The
permitting exemptions in this Section do not relieve the owner or operator of any source from
any obligation to comply with any other applicable requirements, including the obligation to
obtain a permit pursuant to Sections 9.1(d) and 39.5 of the Act, sections
Sections 165, 173 and
502 of the Clean Air Act or any other applicable permit or registration requirements.
a)
Air contaminant detectors or recorders, combustion controllers or combustion
shutoffs;
b)
Air conditioning or ventilating equipment not designed to remove air
contaminants generated by or released from associated equipment;
c)
Each fuel burning emission unit for indirect systems and for heating and reheating
furnace systems used exclusively for residential, or commercial establishments
using gas and/or fuel oil exclusively with a design heat input capacity of less than
14.6 MW (50 mmbtu/hr), except that a permit shall be required for any such
emission unit with a design heat input capacity of at least 10 mmbtu/hr that was
constructed, reconstructed or modified after June 9, 1989 and that is subject to 40
CFR 60, subpart Subpart D;

11
d)
Each fuel burning emission unit other than those listed in subsection (c) of this
Section for direct systems used for comfort heating purposes and indirect heating
systems with a design heat input capacity of less than 2930 kW (10 mmbtu/hr);
e)
Internal combustion engines or boilers (including the fuel system) of motor
vehicles, locomotives, air craft, watercraft, lift trucks and other vehicles powered
by nonroad engines;
f)
Bench scale laboratory equipment and laboratory equipment used exclusively for
chemical and physical analysis, including associated laboratory fume hoods,
vacuum producing devices and control devices installed primarily to address
potential accidental releases;
g)
Coating operations located at a source using not in excess of 18,925 l (5,000 gal)
of coating (including thinner) per year;
h)
Any emission unit acquired exclusively for domestic use, except that a permit
shall be required for any incinerator and for any fuel combustion emission unit
using solid fuel with a design heat input capacity of 14.6 MW (50 mmbtu/hr) or
more;
i)
Any stationary internal combustion engine with a rated power output of less than
1118 kW (1500 bhphorsepower) or stationary turbine, except that a permit shall
be required for the following:
1)
Any internal combustion engine with a rating at equal to or greater than
500 bhp output that is subject to the control requirements of 35 Ill. Adm.
Code 217.388(a) or (b); or
2)
Any any stationary gas turbine engine with a rated heat input at peak load
of 10.7 gigajoules/hr (10 mmbtu/hr) or more that is constructed,
reconstructed or modified after October 3, 1977 and that is subject to
requirements of 40 CFR 60, subpart Subpart GG;
j)
Rest room facilities and associated cleanup operations, and stacks or vents used to
prevent the escape of sewer gases through plumbing traps;
k)
Safety devices designed to protect life and limb, provided that a permit is not
otherwise required for the emission unit with which the safety device is
associated;
l)
Storage tanks for liquids for retail dispensing except for storage tanks that are
subject to the requirements of 35 Ill. Adm. Code 215.583(a)(2), 218.583(a)(2) or
219.583(a)(2);

12
m)
Printing operations with aggregate organic solvent usage that never exceeds 2,839
l (750 gal) per year from all printing lines at the source, including organic solvent
from inks, dilutents, fountain solutions and cleaning materials;
n)
Storage tanks of:
1)
Organic liquids with a capacity of less than 37,850 l (10,000 gal),
provided the storage tank is not used to store any material listed as a
hazardous air pollutant pursuant to section Section 112(b) of the Clean Air
Act, and provided the storage tank is not subject to the requirements of 35
Ill. Adm. Code 215.583(a)(2), 218.583(a)(2) or 219.583(a)(2);
2)
Any size containing exclusively soaps, detergents, surfactants, waxes,
glycerin, vegetable oils, greases, animal fats, sweetener, corn syrup,
aqueous salt solutions or aqueous caustic solutions, provided an organic
solvent has not been mixed with such materials; or
3)
Any size containing virgin or re-refined distillate oil, hydrocarbon
condensate from natural gas pipeline or storage systems, lubricating oil or
residual fuel oils;.
o)
Threaded pipe connections, vessel manways, flanges, valves, pump seals, pressure
relief valves, pressure relief devices and pumps;
p)
Sampling connections used exclusively to withdraw materials for testing and
analyses;
q)
All storage tanks of Illinois crude oil with capacity of less than 151,400 l (40,000
gal) located on oil field sites;
r)
All organic material-water single or multiple compartment effluent water
separator facilities for Illinois crude oil of vapor pressure of less than 34.5 kPa
absolute (5 psia);
s)
Grain-handling operations, exclusive of grain-drying operations, with an annual
grain through-put not exceeding 300,000 bushels;
t)
Grain-drying operations with a total grain-drying capacity not exceeding 750
bushels per hour for 5% moisture extraction at manufacturer's rated capacity,
using the American Society of Agricultural Engineers Standard 248.2, Section 9,
Basis for Stating Drying Capacity of Batch and Continuous-Flow Grain Dryers;
u)
Portable grain-handling equipment and one-turn storage space;

13
v)
Cold cleaning degreasers that are not in-line cleaning machines, where the vapor
pressure of the solvents used never exceeds 2 kPa (15 mmHg or 0.3 psi) measured
at 38°C (100°F) or 0.7 kPa (5 mmHg or 0.1 psi) at 20°C
°(68F)
;
w)
Coin-operated dry cleaning operations;
x)
Dry cleaning operations at a source that consume less than 30 gallons per month
of perchloroethylene;
y)
Brazing, soldering, wave soldering or welding equipment, including associated
ventilation hoods;
z)
Cafeterias, kitchens, and other similar facilities, including smokehouses, used for
preparing food or beverages, but not including facilities used in the manufacturing
and wholesale distribution of food, beverages, food or beverage products, or food
or beverage components;
aa)
Equipment for carving, cutting, routing, turning, drilling, machining, sawing,
surface grinding, sanding, planing, buffing, sand blast cleaning, shot blasting, shot
peening, or polishing ceramic artwork, leather, metals (other than beryllium),
plastics, concrete, rubber, paper stock, wood or wood products, where such
equipment is either:
1)
Used for maintenance activity;
2)
Manually operated;
3)
Exhausted inside a building; or
4)
Vented externally with emissions controlled by an appropriately operated
cyclonic inertial separator (cyclone), filter, electro-static precipitor or a
scrubber;.
bb)
Feed mills that produce no more than 10,000 tons of feed per calendar year,
provided that a permit is not otherwise required for the source pursuant to Section
201.142, 201.143 or 201.144;
cc)
Extruders used for the extrusion of metals, minerals, plastics, rubber or wood,
excluding:
1)
Extruders used in the manufacture of polymers;
2)
Extruders using foaming agents or release agents that contain volatile
organic materials or Class I or II substances subject to the requirements of
Title VI of the Clean Air Act; and

14
3)
Extruders processing scrap material that was produced using foaming
agents containing volatile organic materials or Class I or II substances
subject to the requirements of Title VI of the Clean Air Act;.
dd)
Furnaces used for melting metals, other than beryllium, with a brim full capacity
of less than 450 cubic inches by volume;
ee)
Equipment used for the melting or application of less than 22,767 kg/yr (50,000
lbs/yr) of wax to which no organic solvent has been added;
ff)
Equipment used for filling drums, pails or other packaging containers, excluding
aerosol cans, with soaps, detergents, surfactants, lubricating oils, waxes, vegetable
oils, greases, animal fats, glycerin, sweeteners, corn syrup, aqueous salt solutions
or aqueous caustic solutions, provided an organic solvent has not been mixed with
such materials;
gg)
Loading and unloading systems for railcars, tank trucks, or watercraft that handle
only the following liquid materials: soaps, detergents, surfactants, lubricating oils,
waxes, glycerin, vegetable oils, greases, animal fats, sweetener, corn syrup,
aqueous salt solutions or aqueous caustic solutions, provided an organic solvent
has not been mixed with such materials;
hh)
Equipment used for the mixing and blending of materials at ambient temperatures
to make water based adhesives, provided each material mixed or blended contains
less than 5% organic solvent by weight;
ii)
Die casting machines where a metal or plastic is formed under pressure in a die
located at a source with a through-put of less than 2,000,000 lbs of metal or
plastic per year, in the aggregate, from all die casting machines;
jj)
Air pollution control devices used exclusively with other equipment that is
exempt from permitting, as provided in this Section;
kk)
An emission unit for which a registration system designed to identify sources and
emission units subject to emission control requirements is in place, such as the
registration system found at 35 Ill. Adm. Code 218.586 (Gasoline Dispensing
Operations - Motor Vehicle Fueling Operations) and 35 Ill. Adm. Code 218,
Subpart HH (Motor Vehicle Refinishing);
ll)
Photographic process equipment by which an image is reproduced upon material
sensitized to radiant energy;
mm) Equipment used for hydraulic or hydrostatic testing;
nn)
General vehicle maintenance and servicing activities conducted at a source, motor
vehicle repair shops, and motor vehicle body shops, but not including:

15
1)
Gasoline fuel handling; and
2)
Motor vehicle refinishing;.
oo)
Equipment using water, water and soap or detergent, or a suspension of abrasives
in water for purposes of cleaning or finishing, provided no organic solvent has
been added to the water;
pp)
Administrative activities including, but not limited to, paper shredding, copying,
photographic activities and blueprinting machines. This does not include
incinerators;
qq)
Laundry dryers, extractors, and tumblers processing that have been cleaned with
water solutions of bleach or detergents that are:
1)
Located at a source and process clothing, bedding and other fabric items
used at the source, provided that any organic solvent present in such items
before processing that is retained from cleanup operations shall be
addressed as part of the VOM emissions from use of cleaning materials;
2)
Located at a commercial laundry; or
3)
Coin operated;.
rr)
Housekeeping activities for cleaning purposes, including collecting spilled and
accumulated materials, including operation of fixed vacuum cleaning systems
specifically for such purposes, but not including use of cleaning materials that
contain organic solvent;
ss)
Refrigeration systems, including storage tanks used in refrigeration systems, but
excluding any combustion equipment associated with such systems;
tt)
Activities associated with the construction, on-site repair, maintenance or
dismantlement of buildings, utility lines, pipelines, wells, excavations, earthworks
and other structures that do not constitute emission units;
uu)
Piping and storage systems for natural gas, propane and liquefied petroleum gas;
vv)
Water treatment or storage systems, as follows:
1)
Systems for potable water or boiler feedwater;
2)
Systems, including cooling towers, for process water, provided that such
water has not been in direct or indirect contact with process streams that

16
contain volatile organic material or materials listed as hazardous air
pollutants pursuant to Section section 112(b) of the Clean Air Act;.
ww) Lawn care, landscape maintenance and grounds keeping activities;
xx)
Containers, reservoirs or tanks used exclusively in dipping operations to coat
objects with oils, waxes or greases, provided no organic solvent has been mixed
with such materials;
yy)
Use of consumer products, including hazardous substances as that term is defined
in the Federal Hazardous Substances Act (15 USC 1261 et seq.), where the
product is used at a source in the same manner as normal consumer use;
zz)
Activities directly used in the diagnosis and treatment of disease, injury or other
medical condition;
aaa)
Activities associated with the construction, repair or maintenance of roads or
other paved or open areas, including operation of street sweepers, vacuum trucks,
spray trucks and other vehicles related to the control of fugitive emissions of such
roads or other areas;
bbb) Storage and handling of drums or other transportable containers, where the
containers are sealed during storage and handling;
ccc)
Activities at a source associated with the maintenance, repair or dismantlement of
an emission unit or other equipment installed at the source, not including the
shutdown of the unit or equipment, including preparation for maintenance, repair
or dismantlement, and preparation for subsequent startup, including preparation of
a shutdown vessel for entry, replacement of insulation, welding and cutting, and
steam purging of a vessel prior to startup;
ddd) Equipment used for corona arc discharge surface treatment of plastic with a power
rating of 5 kW or less or equipped with an ozone destruction device;
eee)
Equipment used to seal or cut plastic bags for commercial, industrial or domestic
use;
fff)
Each direct-fired gas dryer used for a washing, cleaning, coating or printing line,
excluding:
1)
Dryers with a rated heat input capacity of 2930 kW (10 mmbtu/hr) or
more; and
2)
Dryers for which emissions other than those attributable to combustion of
fuel in the dryer, including emissions attributable to use or application of
cleaning agents, washing materials, coatings or inks or other process

17
materials that contain volatile organic material are not addressed as part of
the permitting of such line, if a permit is otherwise required for the line;
ggg) Municipal solid waste landfills with a maximum total design capacity of less than
2.5 million Mg or 2.5 million m
3
that are not required to install a gas collection
and control system pursuant to 35 Ill. Adm. Code 220 or 800 through 849 or
Section 9.1 of the Act; and
hhh) Replacement or addition of air pollution control equipment for existing emission
units in circumstances where:
1)
The existing emission unit is permitted and has operated in compliance for
the past year;
2)
The new control equipment will provide equal or better control of the
target pollutants;
3)
The new control device will not be accompanied by a net increase in
emissions of any non-targeted criteria air pollutant;
4)
Different State or federal regulatory requirements or newly proposed
regulatory requirements will not apply to the unit; and
BOARD NOTE: All sources must comply with underlying federal
regulations and future State regulations.
5)
Where the existing air pollution control equipment had required
monitoring equipment, the new air pollution control equipment will be
equipped with the instrumentation and monitoring devices that are
typically installed on the new equipment of that type.
BOARD NOTE: For major sources subject to Section 39.5 of the Act,
where the new air pollution control equipment will require a different
compliance determination method in the facility’s CAAPP permit, the
facility may need a permit modification to address the changed
compliance determination method;.
iii)
Replacement, addition, or modification of emission units at facilities with
federally enforceable State operating permits limiting their potential to emit in
circumstances where:
1)
The potential to emit any regulated air pollutant in the absence of air
pollution control equipment from the new emission unit, or the increase in
the potential to emit resulting from the modification of any existing
emission unit, is less than 0.1 pound per hour or 0.44 tons per year;
2)
The raw materials and fuels used or present in the emission unit that cause
or contribute to emissions, based on the information contained in Material

18
Safety Data Sheets for those materials, do not contain equal to or greater
than 0.01 percent by weight of any hazardous air pollutant as defined
under Section section 112(b) of the federal Clean Air Act;
3)
The emission unit or modification is not subject to an emission standard or
other regulatory requirement pursuant to Section section 111 of the federal
Clean Air Act;
4)
Potential emissions of regulated air pollutants from the emission unit or
modification will not, in combination with emissions from existing units
or other proposed units, trigger permitting requirements under Section
39.5, permitting requirements under Section section 165 or 173 of the
federal Clean Air Act, or the requirement to obtain a revised federally
enforceable State operating permit limiting the source’s potential to emit;
and
5)
The source is not currently the subject of a Non-compliance Advisory,
Clean Air Act Section 114 Request, Violation Notice, Notice of Violation,
Compliance Commitment Agreement, Administrative Order, or civil or
criminal enforcement action, related to the air emissions of the source;.
jjj)
Replacement, addition, or modification of emission units at permitted sources that
are not major sources subject to Section 39.5 of the Act and that do not have a
federally enforceable State state operating permit limiting their potential to emit,
in circumstances where:
1)
The potential to emit of any regulated air pollutant in the absence of air
pollution control equipment from the new emission unit, or the increase in
the potential to emit resulting from the modification of any existing
emission unit is either:
A)
Less than 0.1 pound per hour or 0.44 tons per year; or
B)
Less than 0.5 pound per hour, and the permittee provides prior
notification to the Agency of the intent to construct or install the
unit. The unit may be constructed, installed or modified
immediately after the notification is filed;
2)
The emission unit or modification is not subject to an emission standard or
other regulatory requirement under Section section 111 or 112 of the
federal Clean Air Act;
3)
Potential emissions of regulated air pollutants from the emission unit or
modification will not, in combination with the emissions from existing
units or other proposed units, trigger permitting requirements under

19
Section 39.5 of the Act or the requirement to obtain a federally
enforceable permit limiting the source’s potential to emit; and
4)
The source is not currently the subject of a Non-compliance Advisory,
Clean Air Act Section 114 Request, Violation Notice, Notice of Violation,
Compliance Commitment Agreement, Administrative Order, or civil or
criminal enforcement action, related to the air emissions of the source;.
kkk) The owner or operator of a CAAPP source is not required to obtain an air
pollution control construction permit for the construction or modification of an
emission unit or activity that is an insignificant activity as addressed by Section
201.210 or 201.211 of this Part. Section 201.212 of this Part must still be
followed, as applicable. Other than excusing the owner or operator of a CAAPP
source from the requirement to obtain an air pollution control construction permit
for the emission units or activities, nothing in this subsection shall alter or affect
the liability of the CAAPP source for compliance with emission standards and
other requirements that apply to the emission units or activities, either
individually or in conjunction with other emission units or activities constructed,
modified or located at the source;.
lll)
Plastic injection molding equipment with an annual through-put not exceeding
5,000 tons of plastic resin in the aggregate from all plastic injection molding
equipment at the source, and all associated plastic resin loading, unloading,
conveying, mixing, storage, grinding, and drying equipment and associated mold
release and mold cleaning agents.
(Source: Amended at 33 Ill. Reg. _______, effective __________)
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER c: EMISSION STANDARDS AND LIMITATIONS FOR
STATIONARY SOURCES
PART 211
DEFINITIONS AND GENERAL PROVISIONS
SUBPART A: GENERAL PROVISIONS
Section
211.101
Incorporations by Reference
211.102
Abbreviations and Conversion Factors
SUBPART B: DEFINITIONS
Section
211.121
Other Definitions

20
211.122
Definitions (Repealed)
211.130
Accelacota
211.150
Accumulator
211.170
Acid Gases
211.210
Actual Heat Input
211.230
Adhesive
211.240
Adhesion Promoter
211.250
Aeration
211.270
Aerosol Can Filling Line
211.290
Afterburner
211.310
Air Contaminant
211.330
Air Dried Coatings
211.350
Air Oxidation Process
211.370
Air Pollutant
211.390
Air Pollution
211.410
Air Pollution Control Equipment
211.430
Air Suspension Coater/Dryer
211.450
Airless Spray
211.470
Air Assisted Airless Spray
211.474
Alcohol
211.479
Allowance
211.484
Animal
211.485
Animal Pathological Waste
211.490
Annual Grain Through-Put
211.495
Anti-Glare/Safety Coating
211.510
Application Area
211.530
Architectural Coating
211.550
As Applied
211.560
As-Applied Fountain Solution
211.570
Asphalt
211.590
Asphalt Prime Coat
211.610
Automobile
211.630
Automobile or Light-Duty Truck Assembly Source or Automobile or Light-Duty
Truck Manufacturing Plant
211.650
Automobile or Light-Duty Truck Refinishing
211.660
Automotive/Transportation Plastic Parts
211.670
Baked Coatings
211.680
Bakery Oven
211.685
Basecoat/Clearcoat System
211.690
Batch Loading
211.695
Batch Operation
211.696
Batch Process Train
211.710
Bead-Dipping
211.730
Binders
211.740
Brakehorsepower (rated-bhp)
211.750
British Thermal Unit

21
211.770
Brush or Wipe Coating
211.790
Bulk Gasoline Plant
211.810
Bulk Gasoline Terminal
211.820
Business Machine Plastic Parts
211.830
Can
211.850
Can Coating
211.870
Can Coating Line
211.890
Capture
211.910
Capture Device
211.930
Capture Efficiency
211.950
Capture System
211.953
Carbon Adsorber
211.955
Cement
211.960
Cement Kiln
211.970
Certified Investigation
211.980
Chemical Manufacturing Process Unit
211.990
Choke Loading
211.1010
Clean Air Act
211.1050
Cleaning and Separating Operation
211.1070
Cleaning Materials
211.1090
Clear Coating
211.1110
Clear Topcoat
211.1120
Clinker
211.1130
Closed Purge System
211.1150
Closed Vent System
211.1170
Coal Refuse
211.1190
Coating
211.1210
Coating Applicator
211.1230
Coating Line
211.1250
Coating Plant
211.1270
Coil Coating
211.1290
Coil Coating Line
211.1310
Cold Cleaning
211.1312
Combined Cycle System
211.1316
Combustion Turbine
211.1320
Commence Commercial Operation
211.1324
Commence Operation
211.1328
Common Stack
211.1330
Complete Combustion
211.1350
Component
211.1370
Concrete Curing Compounds
211.1390
Concentrated Nitric Acid Manufacturing Process
211.1410
Condensate
211.1430
Condensible PM-10
211.1465
Continuous Automatic Stoking
211.1467
Continuous Coater

22
211.1470
Continuous Process
211.1490
Control Device
211.1510
Control Device Efficiency
211.1515
Control Period
211.1520
Conventional Air Spray
211.1530
Conventional Soybean Crushing Source
211.1550
Conveyorized Degreasing
211.1570
Crude Oil
211.1590
Crude Oil Gathering
211.1610
Crushing
211.1630
Custody Transfer
211.1650
Cutback Asphalt
211.1670
Daily-Weighted Average VOM Content
211.1690
Day
211.1710
Degreaser
211.1730
Delivery Vessel
211.1740
Diesel Engine
211.1750
Dip Coating
211.1770
Distillate Fuel Oil
211.1780
Distillation Unit
211.1790
Drum
211.1810
Dry Cleaning Operation or Dry Cleaning Facility
211.1830
Dump-Pit Area
211.1850
Effective Grate Area
211.1870
Effluent Water Separator
211.1875
Elastomeric Materials
211.1880
Electromagnetic Interference/Radio Frequency Interference (EMI/RFI) Shielding
Coatings
211.1885
Electronic Component
211.1890
Electrostatic Bell or Disc Spray
211.1900
Electrostatic Prep Coat
211.1910
Electrostatic Spray
211.1920
Emergency or Standby Unit
211.1930
Emission Rate
211.1950
Emission Unit
211.1970
Enamel
211.1990
Enclose
211.2010
End Sealing Compound Coat
211.2030
Enhanced Under-the-Cup Fill
211.2050
Ethanol Blend Gasoline
211.2070
Excess Air
211.2080
Excess Emissions
211.2090
Excessive Release
211.2110
Existing Grain-Drying Operation (Repealed)
211.2130
Existing Grain-Handling Operation (Repealed)
211.2150
Exterior Base Coat

23
211.2170
Exterior End Coat
211.2190
External Floating Roof
211.2210
Extreme Performance Coating
211.2230
Fabric Coating
211.2250
Fabric Coating Line
211.2270
Federally Enforceable Limitations and Conditions
211.2285
Feed Mill
211.2290
Fermentation Time
211.2300
Fill
211.2310
Final Repair Coat
211.2330
Firebox
211.2350
Fixed-Roof Tank
211.2360
Flexible Coating
211.2365
Flexible Operation Unit
211.2370
Flexographic Printing
211.2390
Flexographic Printing Line
211.2410
Floating Roof
211.2420
Fossil Fuel
211.2425
Fossil Fuel-Fired
211.2430
Fountain Solution
211.2450
Freeboard Height
211.2470
Fuel Combustion Emission Unit or Fuel Combustion Emission Source
211.2490
Fugitive Particulate Matter
211.2510
Full Operating Flowrate
211.2530
Gas Service
211.2550
Gas/Gas Method
211.2570
Gasoline
211.2590
Gasoline Dispensing Operation or Gasoline Dispensing Facility
211.2610
Gel Coat
211.2620
Generator
211.2630
Gloss Reducers
211.2650
Grain
211.2670
Grain-Drying Operation
211.2690
Grain-Handling and Conditioning Operation
211.2710
Grain-Handling Operation
211.2730
Green-Tire Spraying
211.2750
Green Tires
211.2770
Gross Heating Value
211.2790
Gross Vehicle Weight Rating
211.2810
Heated Airless Spray
211.2815
Heat Input
211.2820
Heat Input Rate
211.2830
Heatset
211.2850
Heatset Web Offset Lithographic Printing Line
211.2870
Heavy Liquid
211.2890
Heavy Metals

24
211.2910
Heavy Off-Highway Vehicle Products
211.2930
Heavy Off-Highway Vehicle Products Coating
211.2950
Heavy Off-Highway Vehicle Products Coating Line
211.2970
High Temperature Aluminum Coating
211.2990
High Volume Low Pressure (HVLP) Spray
211.3010
Hood
211.3030
Hot Well
211.3050
Housekeeping Practices
211.3070
Incinerator
211.3090
Indirect Heat Transfer
211.3110
Ink
211.3130
In-Process Tank
211.3150
In-Situ Sampling Systems
211.3170
Interior Body Spray Coat
211.3190
Internal-Floating Roof
211.3210
Internal Transferring Area
211.3230
Lacquers
211.3250
Large Appliance
211.3270
Large Appliance Coating
211.3290
Large Appliance Coating Line
211.3300
Lean-Burn Engine
211.3310
Light Liquid
211.3330
Light-Duty Truck
211.3350
Light Oil
211.3370
Liquid/Gas Method
211.3390
Liquid-Mounted Seal
211.3410
Liquid Service
211.3430
Liquids Dripping
211.3450
Lithographic Printing Line
211.3470
Load-Out Area
211.3480
Loading Event
211.3483
Long Dry Kiln
211.3485
Long Wet Kiln
211.3487
Low-NOx Burner
211.3490
Low Solvent Coating
211.3500
Lubricating Oil
211.3510
Magnet Wire
211.3530
Magnet Wire Coating
211.3550
Magnet Wire Coating Line
211.3570
Major Dump Pit
211.3590
Major Metropolitan Area (MMA)
211.3610
Major Population Area (MPA)
211.3620
Manually Operated Equipment
211.3630
Manufacturing Process
211.3650
Marine Terminal
211.3660
Marine Vessel

25
211.3670
Material Recovery Section
211.3690
Maximum Theoretical Emissions
211.3695
Maximum True Vapor Pressure
211.3710
Metal Furniture
211.3730
Metal Furniture Coating
211.3750
Metal Furniture Coating Line
211.3770
Metallic Shoe-Type Seal
211.3780
Mid-Kiln Firing
211.3790
Miscellaneous Fabricated Product Manufacturing Process
211.3810
Miscellaneous Formulation Manufacturing Process
211.3830
Miscellaneous Metal Parts and Products
211.3850
Miscellaneous Metal Parts and Products Coating
211.3870
Miscellaneous Metal Parts or Products Coating Line
211.3890
Miscellaneous Organic Chemical Manufacturing Process
211.3910
Mixing Operation
211.3915
Mobile Equipment
211.3930
Monitor
211.3950
Monomer
211.3960
Motor Vehicles
211.3965
Motor Vehicle Refinishing
211.3970
Multiple Package Coating
211.3980
Nameplate Capacity
211.3990
New Grain-Drying Operation (Repealed)
211.4010
New Grain-Handling Operation (Repealed)
211.4030
No Detectable Volatile Organic Material Emissions
211.4050
Non-Contact Process Water Cooling Tower
211.4055
Non-Flexible Coating
211.4065
Non-Heatset
211.4067
NOx Trading Program
211.4070
Offset
211.4090
One Hundred Percent Acid
211.4110
One-Turn Storage Space
211.4130
Opacity
211.4150
Opaque Stains
211.4170
Open Top Vapor Degreasing
211.4190
Open-Ended Valve
211.4210
Operator of a Gasoline Dispensing Operation or Operator of a Gasoline
Dispensing Facility
211.4230
Organic Compound
211.4250
Organic Material and Organic Materials
211.4260
Organic Solvent
211.4270
Organic Vapor
211.4290
Oven
211.4310
Overall Control
211.4330
Overvarnish
211.4350
Owner of a Gasoline Dispensing Operation or Owner of a Gasoline Dispensing

26
Facility
211.4370
Owner or Operator
211.4390
Packaging Rotogravure Printing
211.4410
Packaging Rotogravure Printing Line
211.4430
Pail
211.4450
Paint Manufacturing Source or Paint Manufacturing Plant
211.4470
Paper Coating
211.4490
Paper Coating Line
211.4510
Particulate Matter
211.4530
Parts Per Million (Volume) or PPM (Vol)
211.4550
Person
211.4590
Petroleum
211.4610
Petroleum Liquid
211.4630
Petroleum Refinery
211.4650
Pharmaceutical
211.4670
Pharmaceutical Coating Operation
211.4690
Photochemically Reactive Material
211.4710
Pigmented Coatings
211.4730
Plant
211.4740
Plastic Part
211.4750
Plasticizers
211.4770
PM-10
211.4790
Pneumatic Rubber Tire Manufacture
211.4810
Polybasic Organic Acid Partial Oxidation Manufacturing Process
211.4830
Polyester Resin Material(s)
211.4850
Polyester Resin Products Manufacturing Process
211.4870
Polystyrene Plant
211.4890
Polystyrene Resin
211.4910
Portable Grain-Handling Equipment
211.4930
Portland Cement Manufacturing Process Emission Source
211.4950
Portland Cement Process or Portland Cement Manufacturing Plant
211.4960
Potential Electrical Output Capacity
211.4970
Potential to Emit
211.4990
Power Driven Fastener Coating
211.5010
Precoat
211.5015
Preheater Kiln
211.5020
Preheater/Precalciner Kiln
211.5030
Pressure Release
211.5050
Pressure Tank
211.5060
Pressure/Vacuum Relief Valve
211.5061
Pretreatment Wash Primer
211.5065
Primary Product
211.5070
Prime Coat
211.5080
Primer Sealer
211.5090
Primer Surfacer Coat
211.5110
Primer Surfacer Operation

27
211.5130
Primers
211.5150
Printing
211.5170
Printing Line
211.5185
Process Emission Source
211.5190
Process Emission Unit
211.5210
Process Unit
211.5230
Process Unit Shutdown
211.5245
Process Vent
211.5250
Process Weight Rate
211.5270
Production Equipment Exhaust System
211.5310
Publication Rotogravure Printing Line
211.5330
Purged Process Fluid
211.5340
Rated Heat Input Capacity
211.5350
Reactor
211.5370
Reasonably Available Control Technology (RACT)
211.5390
Reclamation System
211.5410
Refiner
211.5430
Refinery Fuel Gas
211.5450
Refinery Fuel Gas System
211.5470
Refinery Unit or Refinery Process Unit
211.5480
Reflective Argent Coating
211.5490
Refrigerated Condenser
211.5500
Regulated Air Pollutant
211.5510
Reid Vapor Pressure
211.5530
Repair
211.5550
Repair Coat
211.5570
Repaired
211.5580
Repowering
211.5590
Residual Fuel Oil
211.5600
Resist Coat
211.5610
Restricted Area
211.5630
Retail Outlet
211.5640
Rich-Burn Engine
211.5650
Ringelmann Chart
211.5670
Roadway
211.5690
Roll Coater
211.5710
Roll Coating
211.5730
Roll Printer
211.5750
Roll Printing
211.5770
Rotogravure Printing
211.5790
Rotogravure Printing Line
211.5810
Safety Relief Valve
211.5830
Sandblasting
211.5850
Sanding Sealers
211.5870
Screening
211.5880
Screen Printing on Paper

28
211.5890
Sealer
211.5910
Semi-Transparent Stains
211.5930
Sensor
211.5950
Set of Safety Relief Valves
211.5970
Sheet Basecoat
211.5980
Sheet-Fed
211.5990
Shotblasting
211.6010
Side-Seam Spray Coat
211.6025
Single Unit Operation
211.6030
Smoke
211.6050
Smokeless Flare
211.6060
Soft Coat
211.6070
Solvent
211.6090
Solvent Cleaning
211.6110
Solvent Recovery System
211.6130
Source
211.6140
Specialty Coatings
211.6145
Specialty Coatings for Motor Vehicles
211.6150
Specialty High Gloss Catalyzed Coating
211.6170
Specialty Leather
211.6190
Specialty Soybean Crushing Source
211.6210
Splash Loading
211.6230
Stack
211.6250
Stain Coating
211.6270
Standard Conditions
211.6290
Standard Cubic Foot (scf)
211.6310
Start-Up
211.6330
Stationary Emission Source
211.6350
Stationary Emission Unit
211.6355
Stationary Gas Turbine
211.6360
Stationary Reciprocating Internal Combustion Engine
211.6370
Stationary Source
211.6390
Stationary Storage Tank
211.6400
Stencil Coat
211.6410
Storage Tank or Storage Vessel
211.6420
Strippable Spray Booth Coating
211.6430
Styrene Devolatilizer Unit
211.6450
Styrene Recovery Unit
211.6470
Submerged Loading Pipe
211.6490
Substrate
211.6510
Sulfuric Acid Mist
211.6530
Surface Condenser
211.6540
Surface Preparation Materials
211.6550
Synthetic Organic Chemical or Polymer Manufacturing Plant
211.6570
Tablet Coating Operation
211.6580
Texture Coat

29
211.6590
Thirty-Day Rolling Average
211.6610
Three-Piece Can
211.6620
Three or Four Stage Coating System
211.6630
Through-the-Valve Fill
211.6650
Tooling Resin
211.6670
Topcoat
211.6690
Topcoat Operation
211.6695
Topcoat System
211.6710
Touch-Up
211.6720
Touch-Up Coating
211.6730
Transfer Efficiency
211.6750
Tread End Cementing
211.6770
True Vapor Pressure
211.6790
Turnaround
211.6810
Two-Piece Can
211.6830
Under-the-Cup Fill
211.6850
Undertread Cementing
211.6860
Uniform Finish Blender
211.6870
Unregulated Safety Relief Valve
211.6880
Vacuum Metallizing
211.6890
Vacuum Producing System
211.6910
Vacuum Service
211.6930
Valves Not Externally Regulated
211.6950
Vapor Balance System
211.6970
Vapor Collection System
211.6990
Vapor Control System
211.7010
Vapor-Mounted Primary Seal
211.7030
Vapor Recovery System
211.7050
Vapor-Suppressed Polyester Resin
211.7070
Vinyl Coating
211.7090
Vinyl Coating Line
211.7110
Volatile Organic Liquid (VOL)
211.7130
Volatile Organic Material Content (VOMC)
211.7150
Volatile Organic Material (VOM) or Volatile Organic Compound (VOC)
211.7170
Volatile Petroleum Liquid
211.7190
Wash Coat
211.7200
Washoff Operations
211.7210
Wastewater (Oil/Water) Separator
211.7230
Weak Nitric Acid Manufacturing Process
211.7250
Web
211.7270
Wholesale Purchase - Consumer
211.7290
Wood Furniture
211.7310
Wood Furniture Coating
211.7330
Wood Furniture Coating Line
211.7350
Woodworking
211.7400
Yeast Percentage

30
211.APPENDIX A
Rule into Section Table
211.APPENDIX B
Section into Rule Table
AUTHORITY: Implementing Sections 9, 9.1, 9.9 and 10 and authorized by Sections 27 and 28
of the Environmental Protection Act [415 ILCS 5/9, 9.1, 9.9, 10, 27 and 28].
SOURCE: Adopted as Chapter 2: Air Pollution, Rule 201: Definitions, R71-23, 4 PCB 191,
filed and effective April 14, 1972; amended in R74-2 and R75-5, 32 PCB 295, at 3 Ill. Reg. 5, p.
777, effective February 3, 1979; amended in R78-3 and 4, 35 PCB 75 and 243, at 3 Ill. Reg. 30,
p. 124, effective July 28, 1979; amended in R80-5, at 7 Ill. Reg. 1244, effective January 21,
1983; codified at 7 Ill. Reg. 13590; amended in R82-1 (Docket A) at 10 Ill. Reg. 12624, effective
July 7, 1986; amended in R85-21(A) at 11 Ill. Reg. 11747, effective June 29, 1987; amended in
R86-34 at 11 Ill. Reg. 12267, effective July 10, 1987; amended in R86-39 at 11 Ill. Reg. 20804,
effective December 14, 1987; amended in R82-14 and R86-37 at 12 Ill. Reg. 787, effective
December 24, 1987; amended in R86-18 at 12 Ill. Reg. 7284, effective April 8, 1988; amended
in R86-10 at 12 Ill. Reg. 7621, effective April 11, 1988; amended in R88-23 at 13 Ill. Reg.
10862, effective June 27, 1989; amended in R89-8 at 13 Ill. Reg. 17457, effective January 1,
1990; amended in R89-16(A) at 14 Ill. Reg. 9141, effective May 23, 1990; amended in R88-
30(B) at 15 Ill. Reg. 5223, effective March 28, 1991; amended in R88-14 at 15 Ill. Reg. 7901,
effective May 14, 1991; amended in R91-10 at 15 Ill. Reg. 15564, effective October 11, 1991;
amended in R91-6 at 15 Ill. Reg. 15673, effective October 14, 1991; amended in R91-22 at 16
Ill. Reg. 7656, effective May 1, 1992; amended in R91-24 at 16 Ill. Reg. 13526, effective August
24, 1992; amended in R93-9 at 17 Ill. Reg. 16504, effective September 27, 1993; amended in
R93-11 at 17 Ill. Reg. 21471, effective December 7, 1993; amended in R93-14 at 18 Ill. Reg.
1253, effective January 18, 1994; amended in R94-12 at 18 Ill. Reg. 14962, effective September
21, 1994; amended in R94-14 at 18 Ill. Reg. 15744, effective October 17, 1994; amended in
R94-15 at 18 Ill. Reg. 16379, effective October 25, 1994; amended in R94-16 at 18 Ill. Reg.
16929, effective November 15, 1994; amended in R94-21, R94-31 and R94-32 at 19 Ill. Reg.
6823, effective May 9, 1995; amended in R94-33 at 19 Ill. Reg. 7344, effective May 22, 1995;
amended in R95-2 at 19 Ill. Reg. 11066, effective July 12, 1995; amended in R95-16 at 19 Ill.
Reg. 15176, effective October 19, 1995; amended in R96-5 at 20 Ill. Reg. 7590, effective May
22, 1996; amended in R96-16 at 21 Ill. Reg. 2641, effective February 7, 1997; amended in R97-
17 at 21 Ill. Reg. 6489, effective May 16, 1997; amended in R97-24 at 21 Ill. Reg. 7695,
effective June 9, 1997; amended in R96-17 at 21 Ill. Reg. 7856, effective June 17, 1997;
amended in R97-31 at 22 Ill. Reg. 3497, effective February 2, 1998; amended in R98-17 at 22 Ill.
Reg.11405, effective June 22, 1998; amended in R01-9 at 25 Ill. Reg. 108, effective December
26, 2000; amended in R01-11 at 25 Ill. Reg. 4582, effective March 15, 2001; amended in R01-17
at 25 Ill. Reg. 5900, effective April 17, 2001; amended in R05-16 at 29 Ill. Reg. 8181, effective
May 23, 2005; amended in R05-11 at 29 Ill. Reg.8892, effective June 13, 2005; amended in R04-
12/20 at 30 Ill. Reg. 9654, effective May 15, 2006; amended in R07-18 at 31 Ill. Reg. 14254,
effective September 25, 2007; amended in R08-06 at 31 Ill. Reg. 1387, effective January 16,
2008; amended in R07-19 at 33 Ill. Reg. _________, effective __________..
SUBPART B: DEFINITIONS

31
Section 211.1920
Emergency or Standby Unit
“Emergency or Standby Unit” means, for a stationary gas turbine or a stationary reciprocating
internal combustion engine, a unit that:
a)
Supplies power for the source at which it is located but operates only when the
normal supply of power has been rendered unavailable by circumstances beyond
the control of the owner or operator of the source and only as necessary to assure
the availability of the engine or turbine. An emergency or standby unit may not
be operated to supplement a primary power source when the load capacity or
rating of the primary power source has been reached or exceeded.
b)
Operates exclusively for firefighting or flood control or both.
c)
Operates in response to and during the existence of any officially declared disaster
or state of emergency.
d)
Operates for the purpose of testing, repair or routine maintenance to verify its
readiness for emergency or standby use.
e)
Notwithstanding any other subsection in this Section, emergency or standby units
may operate an additional 50 hours per year in non-emergency situations.
The term does not include equipment used for purposes other than emergencies, as
described above, such as to supply power during high electric demand days.
(Source: Amended at 33 Ill. Reg., ____________effective __________)
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER C: EMISSION STANDARDS AND LIMITATIONS
FOR STATIONARY SOURCES
PART 217
NITROGEN OXIDES EMISSIONS
SUBPART A: GENERAL PROVISIONS
Section
217.100
Scope and Organization
217.101
Measurement Methods
217.102
Abbreviations and Units
217.103
Definitions
217.104
Incorporations by Reference

32
SUBPART B: NEW FUEL COMBUSTION EMISSION SOURCES
Section
217.121
New Emission Sources
SUBPART C: EXISTING FUEL COMBUSTION EMISSION SOURCES
Section
217.141
Existing Emission Sources in Major Metropolitan Areas
SUBPART K: PROCESS EMISSION SOURCES
Section
217.301
Industrial Processes
SUBPART O: CHEMICAL MANUFACTURE
Section
217.381
Nitric Acid Manufacturing Processes
SUBPART Q: STATIONARY RECIPROCATING INTERNAL COMBUSTION
ENGINES AND TURBINES
Section
217.386
Applicability
217.388
Control and Maintenance Requirements
217.390
Emissions Averaging Plans
217.392
Compliance
217.394
Testing and Monitoring
217.396
Recordkeeping and Reporting
SUBPART T: CEMENT KILNS
Section
217.400
Applicability
217.402
Control Requirements
217.404
Testing
217.406
Monitoring
217.408
Reporting
217.410
Recordkeeping
SUBPART U: NOx CONTROL AND TRADING PROGRAM FOR
SPECIFIED NOx GENERATING UNITS
Section
217.450
Purpose
217.452
Severability
217.454
Applicability
217.456
Compliance Requirements
217.458
Permitting Requirements
217.460
Subpart U NOx Trading Budget

33
217.462
Methodology for Obtaining NOx Allocations
217.464
Methodology for Determining NOx Allowances from the New Source Set-Aside
217.466
NOx Allocations Procedure for Subpart U Budget Units
217.468
New Source Set-Asides for “New” Budget Units
217.470
Early Reduction Credits (ERCs) for Budget Units
217.472
Low-Emitter Requirements
217.474
Opt-In Units
217.476
Opt-In Process
217.478
Opt-In Budget Units: Withdrawal from NOx Trading Program
217.480
Opt-In Units: Change in Regulatory Status
217.482
Allowance Allocations to Opt-In Budget Units
SUBPART V: ELECTRIC POWER GENERATION
Section
217.521
Lake of Egypt Power Plant
217.700
Purpose
217.702
Severability
217.704
Applicability
217.706
Emission Limitations
217.708
NOx Averaging
217.710
Monitoring
217.712
Reporting and Recordkeeping
SUBPART W: NOx TRADING PROGRAM FOR ELECTRICAL
GENERATING UNITS
Section
217.750
Purpose
217.752
Severability
217.754
Applicability
217.756
Compliance Requirements
217.758
Permitting Requirements
217.760
NOx Trading Budget
217.762
Methodology for Calculating NOx Allocations for Budget Electrical
Generating Units (EGUs)
217.764
NOx Allocations for Budget EGUs
217.768
New Source Set-Asides for “New” Budget EGUs
217.770
Early Reduction Credits for Budget EGUs
217.774
Opt-In Units
217.776
Opt-In Process
217.778
Budget Opt-In Units: Withdrawal from NOx Trading Program
217.780
Opt-In Units: Change in Regulatory Status
217.782
Allowance Allocations to Budget Opt-In Units
SUBPART X: VOLUNTARY NOx EMISSIONS REDUCTION PROGRAM

34
Section
217.800
Purpose
217.805
Emission Unit Eligibility
217.810
Participation Requirements
217.815
NOx Emission Reductions and the Subpart X NOx Trading Budget
217.820
Baseline Emissions Determination
217.825
Calculation of Creditable NOx Emission Reductions
217.830
Limitations on NOx Emission Reductions
217.835
NOx Emission Reduction Proposal
217.840
Agency Action
217.845
Emissions Determination Methods
217.850
Emissions Monitoring
217.855
Reporting
217.860
Recordkeeping
217.865
Enforcement
217.APPENDIX A
Rule into Section Table
217.APPENDIX B
Section into Rule Table
217.APPENDIX C
Compliance Dates
217.APPENDIX D
Non-Electrical Generating Units
217.APPENDIX E
Large Non-Electrical Generating Units
217.APPENDIX F
Allowances for Electrical Generating Units
217.APPENDIX G
Existing Reciprocating Internal Combustion Engines Affected by the NO
x
SIP Call
AUTHORITY: Implementing Sections 9.9 and 10 and authorized by Sections 27 and 28 of the
Environmental Protection Act [415 ILCS 5/9.9, 10, 27 and 28].
SOURCE Adopted as Chapter 2: Air Pollution, Rule 207: Nitrogen Oxides Emissions, R71-23,
4 PCB 191, April 13, 1972, filed and effective April 14, 1972; amended at 2 Ill. Reg. 17, p. 101,
effective April 13, 1978; codified at 7 Ill. Reg. 13609; amended in R01-9 at 25 Ill. Reg. 128,
effective December 26, 2000; amended in R01-11 at 25 Ill. Reg. 4597, effective March 15, 2001;
amended in R01-16 and R01-17 at 25 Ill. Reg. 5914, effective April 17, 2001; amended in R07-
18 at 31 Ill. Reg. 14271, effective September 25, 2007; amended in R07-19 at 33 Ill. Reg.
________, effective __________.
SUBPART Q: STATIONARY RECIPROCATING INTERNAL COMBUSTION
ENGINES AND TURBINES
Section 217.386 Applicability
a)
The provisions of this Subpart shall apply to all:
1)
StationaryA stationary reciprocating internal combustion engines engine
listed in Appendix G of this Part is subject to the requirements of this
Subpart Q.

35
2)
Stationary reciprocating internal combustion engines and turbines located
at a source that emits or has the potential to emit NO
x
in an amount equal
to or greater than 100 tons per year and is in either the area composed of
the Chicago area counties of Cook, DuPage, Kane, Lake, McHenry, and
Will, the Townships of Aux Sable and Goose Lake in Grundy County, and
the Township of Oswego in Kendall County, or in the area composed of
the Metro-East counties of Jersey, Madison, Monroe, and St. Clair, and the
Township of Baldwin in Randolph County, where:
A)
The engine at nameplate capacity is rated at equal to or greater
than 500 bhp output; or
B)
The turbine is rated at equal to or greater than 3.5 MW (4,694 bhp)
output at 14.7 psia, 59°F and 60 percent relative humidity.
b)
Notwithstanding subsection (a)(2)
of this Section, an affected unit is not subject to
the requirements of this Subpart Q if the engine or turbine is or has been:
1)
Used as an emergency or standby unit as defined by 35 Ill. Adm. Code
211.1920;
2)
Used for research or for the purposes of performance verification or
testing;
3)
Used to control emissions from landfills, where at least 50 percent of the
heat input is gas collected from a landfill;
4)
Used for agricultural purposes, including the raising of crops or livestock
that are produced on site, but not for associated businesses like packing
operations, sale of equipment or repair; or
5)
An engine with nameplate capacity rated at less than 1,500 bhp (1,118kW)
output, mounted on a chassis or skids, designed to be moveable, and
moved to a different source at least once every 12 months.
c)
If an exempt unit ceases to fulfill the criteria specified in subsection (b) of this
Section, the owner or operator must notify the Agency in writing within 30 days
after becoming aware that the exemption no longer applies and comply with the
control requirements of this Subpart Q.
d)
The requirements of this Subpart Q will continue to apply to any engine or turbine
that has ever been subject to the control requirements of Section 217.388, even if
the affected unit or source ceases to fulfill the rating requirements of subsection
(a) of this Section or becomes eligible for an exemption pursuant to subsection (b)
of this Section.

36
e)
Where a construction permit, for which the application was submitted to the
Agency prior to the adoption of this Subpart, is issued that relies on decreases in
emissions of NO
x
from existing emission units for purposes of netting or
emissions offsets, such NO
x
decreases shall remain creditable notwithstanding
any requirements that may apply to the existing emissions units pursuant to this
Subpart.
(Source: Amended at 33 Ill. Reg. ______, effective ________)
Section 217.388 Control and Maintenance Requirements
a)
On and after the applicable compliance date in Section 217.392, an owner or
operator of an affected unit must inspect and maintain affected units as required by
subsection (a)(4c) of this Section and comply with one of the following:either the
applicable emissions concentration as set forth in subsection (a)(1) of this Section,
or the requirements for an emissions averaging plan as specified in subsection
(a)(2b) of this Section, or the requirements for operation as a low usage unit as
specified in subsection (a)(3c) of this Section
.
1a)
The owner or operator must limit Limits the discharge from an affected
unit into the atmosphere of any gases that contain NOx to no more than:
A1)
150 ppmv (corrected to 15 percent O
2
on a dry basis) for spark-
ignited rich-burn engines;
B2)
210 ppmv (corrected to 15 percent O
2
on a dry basis) for spark-
ignited lean-burn engines
, except for existing spark-ignited
Worthington engines that are not listed in Appendix G;
C3)
365 ppmv (corrected to 15 percent O
2
on a dry basis) for existing
spark-ignited Worthington engines that are not listed in Appendix
G;
D4)
660 ppmv (corrected to 15 percent O
2
on a dry basis) for diesel
engines;
E5)
42 ppmv (corrected to 15 percent O
2
on a dry basis) for gaseous
fuel-fired turbines; and
F6)
96 ppmv (corrected to 15 percent O
2
on a dry basis) for liquid fuel-
fired turbines.
2b)
The owner or operator must comply Complies with an emissions
averaging plan as provided for in either subsection (a)(2)(A) or
(a)(2)(B)(b)(1) or (b)(2) of this Section:

37
A1)
For any affected unit identified by Section 217.386: The the
requirements of the applicable emissions averaging plan as set
forth in Section 217.390;
or
B2)
For units identified in Section 217.386(a)(1)(B)
(a)(2): The
requirements of an emissions averaging plan adopted pursuant to
any other Subpart of this Part. For such affected engines and
turbines the applicable requirements of this Subpart apply,
including, but not limited to, calculation of NO
x
allowable and
actual emissions rates, compliance dates, monitoring, testing,
reporting, and recordkeeping.
3c)
Operates, forFor units not listed in Appendix G, The owner or operator
operates the affected unit as a low usage unit pursuant to subsection
(a)(3)(A) or (a)(3)(B)(c)(1) or (c)(2) of this Section. Low usage units that
are not part of an emissions averaging plan are not subject to the
requirements of this Subpart Q except for the requirements to inspect and
maintain the unit pursuant to subsection (a)(4)(d) of this Section, test as
required by Section 217.394(f), and retain records pursuant to Section
217.396(b) and (d). Either the limitation in subsection (a)(3)(A) or
(a)(3)(B) (c)(1) or (c)(2) may be utilized at a source, but not both:
A1)
The potential to emit (PTE) is no more than 100 TPY NO
x
aggregated from all engines and turbines located at the source that
are not otherwise exempt pursuant to Section 217.386(b), and not
complying with the requirements of subsection (a)(1) or (a)(2) (a)
or (b) of this Section, and the NO
x
PTE limit is contained in a
federally enforceable permit; or
B2)
The aggregate bhp-hrs/MW-hrs from all affected units located at
the source that are not exempt pursuant to Section 217.386(b), and
not complying with the requirements of subsection (a)(1) or (a)(2)
(a) or (b) of this Section, are less than or equal to the bhp-hrs and
MW-hrs operation limit listed in subsections (a)(3)(B)(i) and
(a)(3)(B)(ii) (c)(2)(A) and (c)(2)(B) of this Section. The operation
limits of subsections (a)(3)(B)(i) and (a)(3)(B)(ii) (c)(2)(A) and
(c)(2)(B) of this Section must be contained in a federally
enforceable permit, except for For units that drive a natural gas
compressor station but that are not located at a natural gas
compressor station or storage facility., the operation limits of
subsections (c)(2)(A) and (c)(2)(B) of this Section must be
contained in a federally enforceable permit. The operation limits
are:
iA)
8 mm bhp-hrs or less on an annual basis for engines; and

38
iiB)
20,000 MW-hrs or less on an annual basis for turbines.
4d)
The owner or operator must inspect Inspects and performsperform
periodic maintenance on the affected unit, in accordance with a
Maintenance Plan that documents:
A1)
For a unit not located at natural gas transmission compressor
station or storage facility, either:
iA)
The manufacturer’s recommended inspection and
maintenance of the applicable air pollution control
equipment, monitoring device, and affected unit; or
iiB)
If the original equipment manual is not available or
substantial modifications have been made that require an
alternative procedure for the applicable air pollution control
device, monitoring device, or affected unit, the owner or
operator must establish a plan for inspection and
maintenance in accordance with what is customary for the
type of air pollution control equipment, monitoring device,
and affected unit.
B2)
For a unit located at a natural gas compressor station or storage
facility, the operator’s maintenance procedures for the applicable air
pollution control device, monitoring device, and affected unit.
b)
Owners and operators of affected units may change the method of compliance
with this Subpart, as follows:
1)
When changing the method of compliance from subsection (a)(3)(c) of
this Section to subsection (a)(1) or (a)(2)(a) or (b) of this Section, the
owner or operator must conduct testing and monitoring according to the
requirements of subsections (a) through (e) of Section 217.394(a0(
through (e), as applicable. For this purpose, references to the “applicable
compliance date” in Section 217.394(a)(2) and (a)(3) shall mean the date
by which compliance with subsections (a) through (e) of this
SectionSection 217.388(a) or (b) is to begin.
2)
An owner or operator of an affected unit that is changing the method of
compliance from subsection (a)(1) or (a)(2) (a) or (b) of this Section to
subsection (c) of this Section must:
A)
Continue to operate the affected unit’s control device, if that unit
relied upon a NO
x
emissions control device for compliance with
the requirements of subsection (a)(1) or (a)(2)(a) or (b) of this

39
Section; and
B)
Prior to changing the method of compliance to subsection (c) of
this Section, complete any outstanding initial performance testing,
subsequent performances testing or monitoring as required by
Section 217.394(a), (b), (c), (d) or (e) for the affected unit. If the
deadline for such testing or monitoring has not yet occurred (e.g.,
the five-year testing or monitoring sequence has not yet elapsed),
the owner or operator must complete the test or monitoring prior to
changing the method of compliance to subsection (a)(3)(c) of this
Section. After changing the method of compliance to subsection
(a)(3)(c) of this Section, no additional testing or monitoring will be
required for the affected unit while it is complying with subsection
(a)(3)(c) of this Section, except as provided for in Section
217.394(f).
(Source: Amended at 33 Ill. Reg. ______, effective _________)
Section 217.390 Emissions Averaging Plans
a)
An owner or operator of certain affected units may comply through an emissions
averaging plan.
1)
AThe unit or units that commenced operation before January 1, 2002, may
be included in only onean emissions averaging plan, as follows:
A)
unitsUnits:
i)
Listed in Appendix G and Located at a single source or at
multiple sources in Illinois, to address compliance for units
identified in Section 217.386(a)(1), so long as the units are
owned by the same company or parent company where the
parent company has working control through stock
ownership of its subsidiary corporations. A unit may be
listed in only one emissions averaging plan; or
ii)
Identified in Section 217.386(a)(2), and Located at a single
source or at multiple sources in either the Chicago area
counties or Metro-East area counties, to address
compliance for units identified in Section 217.386(a)(2), so
long as the units are owned by the same company or parent
company where the parent company has working control
through stock ownership of its subsidiary corporations.
B)
Units that have a compliance date later than the control period for
which the averaging plan is being used for compliance; and

40
C)
Units which that are not otherwise subject to this Subpart (so long
as the units are owned by the same company or parent company
where the parent company has working control through stock
ownership of its subsidiary corporations) or that the owner or
operator may claim as exempt pursuant to Section 217.386(b) but
does not claim as exempt. For as long as such unit is included in
an emissions averaging plan, it will be treated as an affected unit
and subject to the applicable emission concentration, limits,
testing, monitoring, recordkeeping and reporting requirements;
and.
D)
Units thatwhich comply with the requirements for low usage units
set forth in Section 217.388(a)(3)(c), so long as the unit or units
operates NO
x
emissions control technology. For as long as such
unit is included in an emissions averaging plan, it will be subject to
the applicable emission concentration limits in subsection (g)(7) of
this Section, the applicable testing and monitoring requirements for
affected units in subsections (a) through (e) of Section 217.394(a)
through (e), and the applicable recordkeeping and reporting
requirements for affected and low usage units in subsections (a)
through (d) of Section 217.396(a) through (d).
2)
The following types of units may not be included in an emissions
averaging plan:
A)
Units that commence operation after January 1, 2002, unless the
unit or units
replaces a unit or units described in subsection (a)(1)
of this Section an engine or turbine that commenced operation on
or before January 1, 2002, or the unit or units
it replaces a unit or
units described in subsection (a)(1) of this Section an engine or
turbine that replaced a unit or units described in subsection (a)(1)
of this Section that commenced operation on or before January 1,
2002. The new unit must be used for the same purpose and have
substantially equivalent or less process capacity or be permitted for
less NO
x
emissions on annual basis than the actual NO
x
emissions
asof the replacement unit or units that are replaced. The owner or
operator of a unit that is shutdown shut down and replaced must
comply with the provisions of Section 217.396(c)(3) before the
replacement unit may be included in an emissions averaging plan.
B)
Units thatwhich the owner or operator is claiming are exempt
pursuant to Section 217.386(b) or as low usage units pursuant to
Section 217.388(c).
b)
An owner or operator must submit an emissions averaging plan to the Agency by

41
the applicable compliance date set forth in Section 217.392, or by May 1 of the
year in which the owner or operator is using a new emissions averaging plan to
comply
.
1)
The plan must include, but is not limited to:
1A)
The list of affected units included in the plan by unit identification
number and permit number.
2B)
A sample calculation demonstrating compliance using the
methodology provided in subsection (f) of this Section for both the
ozone season and calendar year.
2)
The plan will be effective as follows:
A)
An initial plan for units required to comply by January 1, 2008,
is
effective January 1, 2008;
B)
An initial plan for units required to comply by May 1, 2010, is
effective May 1, 2010,
for those units;
C)
A new plan submitted pursuant to subsection (b) of this Section but
not submitted by January 1, 2008, or May 1, 2010,
is effective
retroactively to January 1 of the applicable year;
D)
An amended plan submitted pursuant to subsection (c) of this
Section is effective retroactively to January 1 of the applicable
year; or
E)
An amended plan submitted pursuant to subsection (d) of this
Section is effective on the date it is received by the Agency.
c)
An owner or operator may amend an emissions averaging plan only once per
calendar year. An amended plan must include the information from subsection
(b)(1) and may change, but is not limited to changing the group of affected units
or reflecting changes in the operation of the affected units. An amended plan
must be submitted to the Agency by May 1 of the applicable calendar year and is
effective as set forth in subsection (b)(2) of this Section
. If an amended plan is
not received by the Agency by May 1 of the applicable calendar year, the
previous year’s plan will be the applicable emissions averaging plan.
d)
Notwithstanding subsection (c) of this Section, an owner or operator, and the
buyer or seller, if applicable:, must
1)
Must submit an updated emissions averaging plan or plans to the Agency
within 60 days, if a unit that is listed in an emissions averaging plan is sold

 
42
or taken out of service.
2)
May amend its emissions averaging plan to include another unit within 30
days after discovering that the unit no longer qualifies as an exempt unit
pursuant to Section 217.386(b) or as a low usage unit pursuant to Section
217.388(a)(3)
(c).
3)
May submit an updated emissions averaging plan or plans to the Agency
within 60 days afterof purchasing a new unit to include the new unit.
e)
An owner or operator must:
1)
Demonstrate compliance for both the ozone season (May 1 through
September 30) and the calendar year (January 1 through December 31) by
using the methodology and the units listed in the most recent emissions
averaging plan submitted to the Agency pursuant to subsection (b), (c), or
(d) of this Section; the higher of the monitoring or test data determined
pursuant to Section 217.394; and the actual hours of operation for the
applicable control period;
2)
Notify the Agency by October 31 following the ozone season, if
compliance cannot be demonstrated for that ozone season; and
3)
Submit to the Agency by January 31 following each calendar year, a
compliance report containing the information required by Section
217.396(c)(4).
f)
The total mass of actual NOx emissions from the units listed in the emissions
averaging plan must be equal to or less than the total mass of allowable NOx
emissions for those units for both the ozone season and calendar year. The
following equation must be used to determine compliance:
N
act
≤ N
all
Where:
N
act
=
=
n
i1
EM
act(i)
N
all
=
=
n
i1
EM
all(i)
N
act
=
Total sum of the actual NOx mass emissions from
units included in the averaging plan for each fuel used (lbs
per ozone season and calendar year).
N
all
=
Total sum of the allowable NOx mass emissions from units
included in the averaging plan for each fuel used (lbs per
ozone season and calendar year).

 
43
EM
all(i)
=
Total mass of allowable NOx emissions in lbs for a unit as
determined in subsection (g)(2) or (h)(2) of this Section.
EM
act(i)
=
Total mass of actual NO
x
emissions in lbs for a unit
as determined in subsection (g)(1) or (h)(1) of this Section.
i
=
Subscript denoting an individual unit and fuel used.
n
=
Number of different units in the averaging plan.
g)
For each unit in the averaging plan, and each fuel used by a unit, determine actual
and allowable NOx emissions using the following equations, except as provided
for in subsection (h) of this Section:
1)
Actual emissions must be determined as follows:
EM
act(i)
=
E
act(i)
x H
i
m
20.9 %O
C
xF x
20.9
E
m
j 1
2d(j)
d(act( j))
d
act(i)
=
=
2)
Allowable emissions must be determined as follows:
EM
all(i)
=
E
all(i)
x H
i
m
20.9 %O
C
xF x
20.9
E
m
j 1
2d(j)
d(all)
d
all(i)
=
=
Where:
EM
act(i)
=
Total mass of actual NOx emissions in lbs for a unit, except
as provided for in subsections (g)(3) and (g)(5) of this
Section.
EM
all(i)
=
Total mass of allowable NOx emissions in lbs for a unit,
except as provided for in subsection (g)(3) of this Section.
E
act
=
Actual NOx emission rate (lbs/mmBtu) calculated
according to the above equation.
E
all
=
Allowable NOx emission rate (lbs/mmBtu)
calculated according to the above equation,
H
=
Heat input (mmBtu/ozone season or mmBtu/year)
as applicable.
calculated from fuel flow meter and the heating
value of the fuel used.
C
d(act)
=
Actual concentration of NOx in lb/dscf (ppmv x
1.194 x 10
-7
) on a dry basis for the fuel used. Actual
concentration is determined on each of the most recent test

44
runs or monitoring passes performed pursuant to Section
217.394, whichever is higher.
C
d(all)
=
Allowable concentration of NOx in lb/dscf (allowable
emission limit in ppmv specified in Section 217.388(a)(1),
except as provided for in subsection (g)(4), (g)(5), or (g)(6),
or (g)(7) of this Section, if applicable.,(multiplied by 1.194
x 10
-7
) on a dry basis for the fuel used.
F
d
=
The ratio of the gas volume of the products of combustion
to the heat content of the fuel (dscf/mmBtu) as given in the
table of F Factors included in 40 CFR 60, Aappendix A,
Method 19 or as determined using 40 CFR 60, Aappendix
A, Method 19.
%O
2d
=
Concentration of oxygen in effluent gas stream measured
on a dry basis during each of the applicable tests or
monitoring runs used for determining emissions, as
represented by a whole number percent, e.g., for 18.7%O
2d
,
18.7 would be used.
i
=
Subscript denoting an individual unit and the fuel used.
j
=
Subscript denoting each test run or monitoring pass for an
affected unit for a given fuel.
m
=
The number of test runs or monitoring passes for an
affected unit using a given fuel.
3)
For a replacement unit that is electric-powered, the allowable NOx
emissions from the affected unit that was replaced should be used in the
averaging calculations and the actual NOx emissions for the electric-
powered replacement unit (EM
(i)act elec(i)
) are zero. Allowable NOx
emissions for the electric-powered replacement are calculated using the
actual total bhp-hrs generated by the electric-powered replacement unit on
an ozone season and on an annual basis multiplied by the allowable NOx
emission rate in lb/bhp-hr of the replaced unit. The allowable mass of
NOx emissions from an electric-powered replacement unit (EM
(i)all elec(i)
)
must be determined by multiplying the nameplate capacity of the unit by
the hours operated during the ozone season or annually and the allowable
NOx emission rate of the replaced unit (E
all rep
) in lb/mmBtu converted to
lb/bhp-hr. For this calculation the following equation should be used:
EM
all elec(i)
= bhp x OP x F x E
all rep(i)
Where:
EM
all elec(i)
=
Mass of allowable NOx emissions from the electric-
powered replacement unit in pounds per ozone season or
calendar year.
bhp
= Nameplate capacity of the electric-powered

45
replacement unit in brake- horsepower.
OP
= Operating hours during the ozone season or calendar
year.
F
= Conversion factor of 0.0077 mmBtu/bhp-hr.
E
all rep(i)
= Allowable NO
X
emission rate (lbs/mmBtu) of the replaced
unit.
i
= Subscript denoting an individual electric unit and the fuel
used.
4)
For a replacement unit that is not electric, the allowable NO
x
emissions
rate used in the above equations set forth in subsection (g)(2) of this
Section must be the higher of the actual NO
x
emissions as determined by
testing or monitoring data or the applicable uncontrolled NO
x
emissions
factor from Compilation of Air pPollutant eEmission Factors: AP-42,
Volume I: Stationary Point and Area Sources, as incorporated by reference
in Section 217.104 for the unit that was replaced.
5)
For a unit that is replaced with purchased power, the allowable NO
x
emissions rate used in the above equations set forth in subsection (g)(2) of
this Section must be the emissions concentration as set forth in Section
217.388(a)(1) or subsection (g)(6) of this Section, when applicable, for the
type of unit that was replaced. For owners or operators replacing units
with purchased power, the annual hours of operations that must be used
are the calendar year hours of operation for the unit that was shutdown
shut down, averaged over the three-year period prior to the shutdown. The
actual NOx emissions for the units replaced by purchased power (EM
(i)act
)
are zero. These units may be included in any emissions averaging plan for
no more than five years beginning with the calendar year that the replaced
unit is shut down.
6)
For units that have a later compliance datenon-Appendix G units used in
an emissions averaging plan, allowable emissions rate used in the above
equations set forth in subsection (g)(2) of this Section must be:
A)
Prior to the applicable compliance date pursuant to Section
217.392, the higher of the actual NO
x
emissions as determined by
testing or monitoring data, or the applicable uncontrolled NO
x
emissions factor from Compilation of Air Pollutant Emission
Factors: AP-42, Volume I: Stationary Point and Areas Sources, as
incorporated by reference in Section 217.104); or
B)
On and after the unit’s applicable compliance date pursuant to
Section 217.392, the applicable emissions concentration for that
type of unit pursuant to Section 217.388(a)(1).
7)
For a low usage unit complying with the requirements of Section

46
217.388(a)(3)(c) and used in an emissions averaging plan, the allowable
NO
x
emissions rate used in the above equations set forth in subsection
(g)(2) of this Section must be the higher of the actual NO
x
emissions as
determined by testing or monitoring data or the applicable uncontrolled
NO
x
emissions factor from Compilation of Air Pollutant Emission Factors:
AP-42, Volume I: Stationary Point and Area Sources, as incorporated by
reference in Section 217.104.
h)
For units that use CEMS, the data must show that the total mass of actual NOx
emissions determined pursuant to subsection (h)(1) of this Section is less than or
equal to the allowable NOx emissions calculated in accordance with the equations
in subsections (f) and (h)(2) of this Section for both the ozone season and calendar
year. The equations in subsection (g) of this Section will not apply.
1)
The total mass of actual NOx emissions in lbs for a unit (EM
act
) must be
the sum of the total mass of actual NOx emissions from each affected unit
using CEMS data collected in accordance with 40 CFR 60 or 75, or
alternate methodology that has been approved by the Agency or USEPA
and included in a federally enforceable permit.
2)
The allowable NO
x
emissions must be determined as follows:
=
=
m
j
EM
all
i
Cd
j
flow
j
x
1
( )
(
*
*1.194 10
7
)
Where:
EM
all(i)
=
Total mass of allowable NO
x
emissions in lbs for a unit.
flow
j
Flow
i
= Stack flow (dscf/hr) for a given stack.
Cd
j
Cd
i
= Allowable concentration of NO
x
(ppmv) specified in
Section 217.388(a)(1)
for a given stack. (1.194 x 10
-7
)
converts to lb/dscf).
j
=
subscript denoting each hour operation of a given unit.
m
=
Total number of hours of operation of a unit.
i
=
Subscript denoting an individual unit and the fuel used.
(Source: Amended at 33 Ill. Reg.
, effective
)
Section 217.392 Compliance
a)
On and after January 1, 2008, an owner or operator of an affected engine listed in
Appendix G may not operate the affected engine unless the requirements of this
Subpart Q are met or the affected engine is exempt pursuant to Section
217.386(b).

47
b)
On and after May 1, 2010, an owner or operator of a unit identified by Section
217.386(a)(2), and that is not listed in Appendix G, may not operate the affected
unit unless the requirements of this Subpart Q are met or the affected unit is
exempt pursuant to Section 217.386(b).
c)
Owners and operators of an affected unit may use NO
x
allowances to meet the
compliance requirements in Section 217.388 as specified below in this subsection
(c). A NO
x
allowance is defined as an allowance used to meet the requirements of
a NO
x
trading program in which the State of Illinois participates
, administered by
USEPA where one allowance is equal to one ton of NO
x
emissions.
1)
NO
x
allowances may be used only under the following circumstances:
A)
An anomalous or unforeseen operating scenario inconsistent with
historical operations for a particular ozone season or calendar year
that causes an exceedance of an emissions or operating hour
limitation;
B)
To achieve compliance for no more than two events in any rolling
five-year period; and
C)
If the anomalous or unforeseen operating scenario occurs during an
ozone season, it counts as a single event for purposes of the
calendar year even if there is an exceedance of both an ozone
season emission limitation and an annual emissions limitations as a
result of such operating scenario; and
CD)
For a unit that is not listed in Appendix G.
2)
The owner or operator of the affected unit must surrender to the Agency a
NO
x
allowance for each ton or portion of a ton of NO
x
by which actual
emissions exceed allowed emissions,
as follows:
A)
Where a low usage limitation under Section 217.388(a)(3)(B)
(c)(2)
has been exceeded, the owner or operator of the affected unit must
calculate the NO
x
emissions resulting from the number of hours
that exceeded the operating hour low usage limit and surrender to
the Agency one NO
x
allowance for each ton or portion of a ton of
NO
x
that was calculated.
B)
For noncompliance withof a limitation in an emissions averaging
plan thatwhich includes low usage units, the owner or operator of
the affected low usage unit must calculate the NO
x
emissions using
the applicable allowable emissions concentration from Section
217.388(a)(1).

48
C)
For noncompliance with a seasonal limit in Section
217.388(a)(2)
(b), only a NO
x
ozone season allowance must be
used.
D)
For noncompliance with the emissions concentration limits in
Section 217.388(a)(1), low usage limitations in Section
217.388(a)(3)(c) or an annual limitation in an emissions averaging
plan in Section 217.388(a)(2)
(b), only a NO
x
annual allowance
may be used.
E.)
Notwithstanding the provisions of subsections (c)(2)(C) and
(c)(2)(D) of this Section, if a NO
x
annual trading program does not
exist, a NO
x
ozone season allowance may be used for
noncompliance with the emissions concentration limits in Section
217.388(a)(1), low usage limitations in Section 217.388(a)(3)(c) or
an annual limitation in an emissions averaging plan in Section
217.388(a)(2)(b).
3)
The owner or operator must submit a report documenting the
circumstances that required the use of NO
x
allowances and identify what
actions will be taken in subsequent years to address these circumstances
and must transfer the NO
x
allowances to the Agency’s federal NO
x
retirement account. The report and the transfer of allowances must be
submitted by October 31 for exceedances during the ozone season and
March 1 for exceedances of the emissions concentration limits, the annual
emissions averaging plan limits, or low usage limitations. The report must
contain the NATS serial numbers of the NO
x
allowances.
(Source: Amended at 33 Ill. Reg. _______, effective __________)
Section 217.394 Testing and Monitoring
a)
An owner or operator must conduct an initial performance test pursuant to
subsection (c)(1) or (c)(2) of this Section as follows:
1)
By January 1, 2008, for affected engines listed in Appendix G.
Performance tests must be conducted on units listed in Appendix G, even
if the unit is included in an emissions averaging plan pursuant to Section
217.388(a)(2)(b).
2)
By the applicable compliance date as set forth in Section 217.392, or
withinWithin the first 876 hours of operation per calendar year
, whichever
is later:
A)
Performance tests must be conducted on For affected units not
listed in Appendix G that operate more than 876 hours per calendar

49
year; and
B)
For
units that are not affected units that are included in an
emissions averaging plan and operate more than 876 hours per
calendar year.
3)
Once within the five-year period after the applicable compliance date as
set forth in Section 217.392
:
A)
For affected units that operate fewer than 876 hours per calendar
year; and
. Performance tests must be conducted on
B)
For
units that are not affected units that are included in an
emissions averaging plan and that operate fewer than 876 hours per
calendar year.
b)
An owner or operator of an engine or turbine must conduct subsequent
performance tests pursuant to subsection (cb)(1), or (cb)(2), and (b)(3)
of this
Section as follows:
1)
For affected engines listed in Appendix G and all units included in an
emissions averaging plan, once every five years. Testing must be
performed in the calendar year by May 1 or within 60 days after starting
operation, whichever is later;
2)
If the monitored data shows that the unit is not in compliance with the
applicable emissions concentration or emissions averaging plan, the owner
or operator must report the deviation to the Agency in writing within 30
days and conduct a performance test pursuant to subsection (c) of this
Section within 90 days of the determination of noncompliance; and
3)
When, in the opinion of the Agency or USEPA, it is necessary to conduct
testing to demonstrate compliance with Section 217.388, the owner or
operator of a unit must, at his or her own expense, conduct the test in
accordance with the applicable test methods and procedures specified in
this Section within 90 days after receipt of a notice to test from the
Agency or USEPA.
c)
Testing Procedures:
1)
For an engine: The owner or operator must conduct a performance test
using Method 7 or 7E of 40 CFR 60, appendix A, as incorporated by
reference in Section 217.104. Each compliance test must consist of three
separate runs, each lasting a minimum of 60 minutes. NO
x
emissions must
be measured while the affected unit is operating at peak load. If the unit
combusts more than one type of fuel (gaseous or liquid), including backup

50
fuels, a separate performance test is required for each fuel.
2)
For a turbine included in an emissions averaging plan: The owner or
operator must conduct a performance test using the applicable procedures
and methods in 40 CFR 60.4400, as incorporated by reference in Section
217.104.
d)
Monitoring: Except for those years in which a performance test is conducted
pursuant to subsection (a) or (b) of this Section, the owner or operator of an
affected unit or a unit included in an emissions averaging plan must monitor NO
x
concentrations annually, once between January 1 and May 1 or within the first
876 hours of operation per calendar year, whichever is later. If annual operation
is less than 876 hours per calendar year, each affected unit must be monitored at
least once every five years. Monitoring must be performed as follows:
1)
A portable NO
x
monitor and utilizing method ASTM D6522-00, as
incorporated by reference in Section 217.104, or a method approved by
the Agency must be used. If the engine or turbine combusts both liquid
and gaseous fuels as primary or backup fuels, separate monitoring is
required for each fuel.
2)
NO
x
and O
2
concentrations measurements must be taken three times for a
duration of at least 20 minutes. Monitoring must be done at highest
achievable load. The concentrations from the three monitoring runs must
be averaged to determine whether the affected unit is in compliance with
the applicable emissions concentration or emissions averaging plan, as
specified in Section 217.388.
e)
Instead of complying with the requirements of subsections (a), (b), (c) and (d) of
this Section, an owner or operator may install and operate a CEMS on an affected
unit that meets the applicable requirements of 40 CFR 60, subpart A, and
appendix B or 40 CFR 75,
incorporated by reference in Section 217.104, and
complies with the quality assurance procedures specified in 40 CFR 60, appendix
F,
or 40 CFR 75, as incorporated by reference in Section 217.104, or an alternate
procedure as approved by the Agency or USEPA in a federally enforceable
permit. The CEMS must be used to demonstrate compliance with the applicable
emissions concentration or emissions averaging plan only on an ozone season and
annual basis.
f)
The testing and monitoring requirements of this Section do not apply to affected
units in compliance with the requirements of the low usage limitations pursuant to
Section 217.388(a)(3)(c) or low usage units using NO
x
allowances to comply with
the requirements of this Subpart pursuant to Section 217.392(c), unless such units
are included in an emissions averaging plan. Notwithstanding these the above
circumstances, when, in the opinion of the Agency or USEPA, it is necessary to
conduct testing to demonstrate compliance with Section 217.388, the owner or

51
operator of a unit must, at his or her own expense, conduct the test in accordance
with the applicable test methods and procedures specified in this Section within
90 days after receipt of a notice to test from the Agency or USEPA.
(Source: Amended at 33 Ill. Reg. _______, effective ___________)
Section 217.396 Recordkeeping and Reporting
a)
Recordkeeping. The owner or operator of any a unit included in an emissions
averaging plan (e.g., affected units, nonsubject units, units that could be exempt
pursuant to Section 217.386(b), and low usage units) or an affected unit that is not
exempt pursuant to Section 217.386(b) and is not subject to the low usage
exemption of Section 217.388(a)(3)(c)
of an Appendix G unit or a unit included in
an emissions averaging plan must maintain records that demonstrate compliance
with the requirements of this Subpart Q, which include, but are not limited to:
1)
Identification, type (e.g., lean-burn, gas-fired), and location of each unit.
2)
Calendar date of the record.
3)
The number of hours the unit operated on a monthly basis, and during
each ozone season.
4)
Type and quantity of the fuel used on a daily basis.
5)
The results of all monitoring performed on the unit and reported
deviations.
6)
The results of all tests performed on the unit.
7)
The plan for performing inspection and maintenance of the units, air
pollution control equipment, and the applicable monitoring device
pursuant to Section 217.388(a)(4)(d)
(c).
8)
A log of inspections and maintenance performed on the unit’s air
emissions, monitoring device, and air pollution control device. These
records must include, at a minimum, date, load levels and any manual
adjustments, along with the reason for the adjustment (e.g., air to fuel
ratio, timing or other settings).
9)
If complying with the emissions averaging plan provisions of Sections
217.388(a)(2)(b) and 217.390, copies of the calculations used to
demonstrate compliance with the ozone season and annual control period
limits, noncompliance reports for the ozone season, and ozone and annual
control period compliance reports submitted to the Agency.

52
10)
Identification of time periods for which operating conditions and pollutant
data were not obtained by either the CEMS or alternate monitoring
procedures, including the reasons for not obtaining sufficient data and a
description of corrective actions taken.
11)
Any NO
x
allowance reconciliation reports submitted pursuant to Section
217.392(c)(3).
b)
The owner or operator of an affected unit or unit included in an emissions
averaging plan must maintain the records required by subsection (a) or (d) of this
Section, as applicable,
for a period of five years at the source at which the unit is
located. The records must be made available to the Agency and USEPA upon
request.
c)
Reporting Requirements
1)
The owner or operator must notify the Agency in writing 30 days and five
days prior to testing, pursuant to Section 217.394(a) and (b) and:
A)
If, after the 30-days notice for an initially scheduled test is sent,
there is a delay (e.g., due to operational problems) in conducting
the performance test as scheduled, the owner or operator of the unit
must notify the Agency as soon as possible of the delay in the
original test date, either by providing at least seven days prior
notice of the rescheduled date of the performance test, or by
arranging a new test date with the Agency by mutual agreement;
B)
Provide a testing protocol to the Agency 60 days prior to testing;
and
C)
Not later than 30 days after the completion of the test, submit the
results of the test to the Agency.
2)
Pursuant to the requirements for monitoring in Section 217.394(d), the
owner or operator of the unit must report to the Agency any monitored
exceedances of the applicable NO
x
concentration from Section
217.388(a)(1) or (a)(2)(b) within 30 days after performing the monitoring.
3)
Within 90 days after permanently shutting down an affected unit or a unit
included in an emissions averaging plan, the owner or operator of the unit
must withdraw or amend the applicable permit to reflect that the unit is no
longer in service.
4)
If demonstrating compliance through an emissions averaging plan:
A)
By October 31 following the applicable ozone season, the owner or

53
operator must notify the Agency if he or she cannot demonstrate
compliance for that ozone season; and
B)
By January 3130 following the applicable calendar year, the owner
or operator must submit to the Agency a report that demonstrates
the following:
i)
For all units that are part of the emissions averaging plan,
the total mass of allowable NOx emissions for the ozone
season and for the annual control period;
ii)
The total mass of actual NOx emissions for the ozone
season and annual control period for each unit included in
the averaging plan;
iii)
The calculations that demonstrate that the total mass of
actual NOx emissions are less than the total mass of
allowable NOx emissions using equations in Sections
217.390(f) and (g); and
iv)
The information required to determine the total mass of
actual NOx emissions and the calculations performed in
subsection (cd)(4)(B)(iii) of this Section.
5)
If operating a CEMS, the owner or operator must submit an excess
emissions and monitoring systems performance report in accordance with
the requirements of 40 CFR 60.7(c) and 60.13,
or 40 CFR 75, incorporated
by reference in Section 217.104, or an alternate procedure approved by the
Agency or USEPA and included in a federally enforceable permit.
6)
If using NO
x
allowances to comply with the requirements of Section
217.388, reconciliation reports as required by Section 217.392(c)(3).
d)
The owner or operator of an affected unit that is complying with the low usage
provisions of Section 217.388(a)(3)
(c) must:
1)
For each unit complying with Section 217.388(a)(3)(A)
(c)(1), maintain a
record of the NO
x
emissions for each calendar year;
2)
For each unit complying with Section 217.388(a)(3)(B)
(c)(2), maintain a
record of bhp or MW-hours operated each calendar year; and
3)
For each unit utilizing NO
x
allowances for compliance pursuant to Section
217.392(c)(3), maintain and submit any NO
x
allowance reconciliation
reports.

54
e)
Instead of complying with the requirements of subsection (a) of this Section,;
subsection (b) of this Section,; subsections (c)(1) through (c)(4) of this Section;
and subsection (d) of this Section,; an owner or operator of an affected unit
complying with the requirements of Section 217.388(a)(1) and operating a CEMS
on that unit may meet the applicable testing, monitoring, reporting and
recordkeeping requirements for that CEMS of 40 CFR 75, as incorporated by
reference in Section 217.104.
(Source: Amended at 33 Ill. Reg. _______, effective _________).
IT IS SO ORDERED.
I, John T. Therriault, Assistant Clerk of the Illinois Pollution Control Board, certify that
the Board adopted the above opinion and order on July 23, 2009, by a vote of 5-0.
___________________________________
John T. Therriault, Assistant Clerk
Illinois Pollution Control Board

Back to top