Illinois Administrative Code

Section 201.625 Carbon Monoxide (CO) Requirements Pursuant to 35 Ill. Adm. Code 216.121, no owner or operator of a PBR boiler may cause or allow the emission of CO into the atmosphere from any fuel combustion emission source with actual heat input greater than 2.9 MW (10 MMBtu/hr…

Section 201.630 Nitrogen Oxide (NOx) Requirements The owner or operator of the PBR boiler must comply with the following, as applicable: a) If the PBR boiler is subject to the requirements of 35 Ill. Adm. Code 217.Subpart D, comply with all the applicable requirements of 35 Ill. …

Section 201.635 PBR Boiler Recordkeeping Requirements The owner or operator of the PBR boiler must maintain records containing the following information, in addition to the records required by Section 201.530: a) The maximum design heat input capacity of the boiler, in MMBtu/hr, …

Section 201.APPENDIX C Part Compliance Dates Rule 103(b)(2) Operating permits were required as follows: SOURCE CLASSIFICATION DATE OPERATING PERMIT REQUIRED Primary Metal Industry Operations as defined by code 33 of the “Standard Industrial Classification Manual” By December 1, 1…

Section 202.101 Definitions Unless a different meaning of a term is clear from its context, the definitions of terms used for this Part shall be the same as those used in this Chapter, 35 Ill. Adm. Subtitle B, Chapter I (Chapter).

Section 202.104 Actual Emissions "Actual emissions" means the actual rate of annual emissions of a pollutant from an operational emission source for a particular date equal to the mean rate at which the emission source actually emitted the pollutant during the two-year period whi…

Section 202.107 Allowable Emissions a) "Allowable emissions" means the emission rate of an emission source calculated using the maximum rated capacity of the emission source (unless the emission source is subject to permit conditions or other enforceable limits that restrict the …

Section 202.110 Alternative Control Strategy (ACS) "Alternative control strategy" means a specific program of emissions limitations and requirements which is environmentally equivalent to that which would otherwise be required by applicable statutes or regulations, and under whic…

Section 202.113 Chapter References to "this Chapter" or "Chapter 2" in this Part shall mean Pollution Control Board air pollution rules and regulations as contained in Chapter 2: Air Pollution Regulations and as codified under 35 Ill. Adm. Code Subtitle B, Chapter I.

Section 202.116 Emission Baseline "Emission baseline" means the starting point or reference level from which increases and decreases in emissions are measured. The rules governing determination of emission offsets, calculation of net emission increases, and evaluation of ACS stra…

Section 202.119 Multi-person ACS "Multi-person ACS" means an ACS which includes emission sources which are owned and controlled by different persons who have formed a joint venture for purposes of the ACS.

Section 202.122 Potential to Emit "Potential to emit" means the maximum capacity of an emission source to emit a pollutant under its physical and operational design. Any physical or operational limitation on the capacity of the emission source to emit a pollutant, including air p…

Section 202.125 Abbreviations "ug" is an abbreviation for micrograms. "M3" is an abbreviation for cubic meter. "SO2" is an abbreviation for sulfur dioxide. "TSP" is an abbreviation for particulate matter. "NOx" is an abbreviation for nitrogen oxides. "CO" is an abbreviation for c…

Section 202.140 Scope Pursuant to a permit issued by the Agency under this Part, a person or persons may use an ACS for emission sources, including fugitive emission sources, in lieu of compliance with conflicting requirements which would otherwise be applicable under this Chapte…

Section 202.142 Severability Notwithstanding 35 Ill. Adm. Code 201.125, if any provision of Part 202 is stayed or declared invalid by a final order, no longer subject to appeal, of any court of competent jurisdiction, then the entirety of Part 202 shall be deemed stayed or invali…

Section 202.201 Emission Baseline for Alternative Control Strategies a) The baseline for reviewing decreases or increases of emissions from emission sources which are the subject of an ACS shall be the lesser of the actual emissions or the allowable emissions prescribed by this C…

Section 202.210 Permit Application Information In addition to other information which may be required under 35 Ill. Adm. Code 201, a permit application under this Subpart shall: a) List the emission sources to be included in the ACS, the emission baseline the applicant believes t…

Section 202.211 Analysis of Emissions a) A permit application under this Subpart must provide a comparison of the baseline emissions and the emissions that would be permitted under the proposed ACS for each emission source involved in the ACS. Where appropriate, this analysis mus…

Section 202.212 Analysis of Environmental Quality a) A permit application under this Subpart shall provide a comparison of the ambient air quality under existing requirements and the ambient air quality which would exist under the proposed ACS. This analysis shall include dispers…

Section 202.213 Analysis of Methods of Assuring Compliance A permit application under this Subpart shall provide a comparison of the methods of assuring compliance under existing requirements and the methods of assuring compliance which would be used the proposed ACS. As a minimu…

Section 202.301 Permit Conditions a) The permit shall specify: 1) All emission limits which apply to emission sources under the ACS, and 2) Any compliance procedures which shall be followed by the permittee. b) The permit may be conditioned so that compliance with the terms of th…

Section 202.302 Records and Reports a) The Agency shall require that a permittee operating under an ACS maintain such records as necessary to determine compliance with the requirements of the ACS. 1) These records shall include, but shall not be limited to the actual and allowabl…

Section 202.303 Monitoring and Testing The Agency may require that equipment testing and monitoring, as authorized elsewhere in this Chapter, accompany the construction or operation of emission sources under a permit containing an ACS.

Section 202.304 Compliance Dates a) No owner or operator subject to a permit utilizing an ACS is relieved of the responsibility for achieving and maintaining a reduction of emissions as expeditiously as practicable, but not later than the compliance date required under other appl…

Section 202.305 Public Participation The initial issuance of a permit containing an ACS shall be subject to applicable Agency public participation procedures (35 Ill. Adm. Code 166) prior to issuance. At a minimum, the Agency shall provide an opportunity for public comment.

Section 202.306 Standards for Issuance The Agency shall issue a permit containing an ACS if, and only if, the permit applicant demonstrates that: a) The ACS provides, in the aggregate for each regulated pollutant, equivalent or less total emissions than would otherwise be require…

Section 202.307 Notification to USEPA Upon issuance of an ACS permit, the Agency shall notify USEPA of emission limitations, alternative compliance plans, and any other permit conditions applicable to emission sources under an ACS. (Source: Amended at 7 Ill. Reg. 8091, effective …

Section 202.401 Duration a) A permit containing an ACS shall be issued for no longer than five years, or for such shorter period as the Agency may specify as necessary for periodic review of the ACS or to accomplish the purposes of the Act or of this Chapter. However, an ACS perm…

Section 202.402 Revision a) Timing 1) An application for revision of a permit containing an ACS shall be submitted at least 180 days prior to the date on which the revision is required to go into effect. 2) If the standard under this Chapter for an emission source included in the…

Section 202.403 Renewal a) An application for renewal of a permit containing an ACS shall be submitted at least 180 days prior to the expiration of the previous permit. b) Applications for renewal shall contain the information specified in Section 202.210. However, an analysis of…

Section 202.501 Applicability Persons who propose or participate in a multi-person ACS shall be subject to the rules found in this Subpart in addition to the remainder of this Part.

Section 202.502 Permit Application In addition to the information required in Section 212.210, persons who propose a multi-person ACS shall: a) Identify the persons having ownership and control of the emission sources to be included in the ACS. b) Provide a written agreement show…

Section 202.503 Duration All permits issued under a multi-person ACS shall have the same expiration date.

Section 202.504 Permit Conditions Each participant in a multi-person ACS shall be issued an individual permit which shall be conditioned on the continuing compliance of the other participants with the limitations in their permits.

Section 202.505 Records and Reports All records and reports of the participants in a multi-person ACS which are not confidential in nature shall be available for inspection to the other participants upon reasonable notice of a request to inspect.

Section 202.506 Revocation Permit revocation or other sanctions may be initiated before the Board against any and all persons in the multi-person ACS, regardless of the ownership and control of the emission source at which the violations occurred or any contracts or other agreeme…

Section 202.507 Termination a) If a participant in a multi-person ACS intends to terminate involvement in the ACS, it shall give written notice to the Agency and the other participants in the ACS at least 180 days prior to the anticipated termination date. b) If the ACS will not …

Section 202.APPENDIX A Pre-Codification into Codified Pre-Codification Section Section 202.101 202.101 202.101 202.104 202.101 202.107 202.101 202.110 202.101 202.113 202.101 202.116 202.101 202.119 202.101 202.122 202.101 202.125 202.102 202.140 202.105 202.201 202.110 202.210 2…

Section 203.100 Effective Dates a) Subparts I through R of this Part do not apply until the effective date of the full approval of all of those Subparts by the United States Environmental Protection Agency (USEPA) as a revision to the Illinois State Implementation Plan. b) On the…

Section 203.1000 Incorporations by Reference The following materials are incorporated by reference. These incorporations by reference do not include any later amendments or editions. a) 40 CFR Part 51, Subpart I (2021) b) 40 CFR 52.21 (2021) c) 40 CFR Part 51, Appendix S (2021) d…

Section 203.101 Definitions Unless otherwise specified within this Part, the definitions of terms used in this Part shall be the same as those used in the Pollution Control Board (Board) Rules and Regulations 35 Ill. Adm. Code 201 and 211. (Source: Amended at 17 Ill. Reg. 6973, e…

Section 203.1010 Abbreviations and Acronyms The following abbreviations and acronyms are used in this Part: µg/m3 micrograms per cubic meter Act Illinois Environmental Protection Act Agency Illinois Environmental Protection Agency BACT Best Available Control Technology Board Illi…

Section 203.1020 Severability If any provision of this Part, or the application of that provision to any person or circumstance, is held invalid, the remainder of this Part, or the application of the provision to persons or circumstances other than those as to which it is held in…

Section 203.103 Actual Construction "Actual Construction" means in general, initiation of physical on-site construction activities on an emissions unit which are of a permanent nature. Such activities include, but are not limited to, installation of building supports and foundati…

Section 203.1030 Definitions Unless otherwise specified in this Part, terms used in this Part have the same meaning as the terms used in 35 Ill. Adm. Code Part 211. (Source: Added at 49 Ill. Reg. 6237, effective April 23, 2025)

Section 203.104 Actual Emissions "Actual Emissions" means the actual rate of annual emissions of a pollutant from an emissions unit as of a particular date. Actual emissions are equal to the average rate, in tons per year, at which the emissions unit actually emitted the pollutan…

Section 203.1040 Actual Emissions a) "Actual Emissions" means the actual rate of emissions of a regulated NSR pollutant from an emissions unit as determined in compliance with subsections (b) through (c), except that this definition shall not apply for calculating whether a signi…