ADMINISTRATIVE CODE

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  3. TITLE 35: ENVIRONMENTAL PROTECTION
  4. CHAPTER I: POLLUTION CONTROL BOARD
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER a: PERMITS AND GENERAL PROVISIONS
PART 203 MAJOR STATIONARY SOURCES CONSTRUCTION AND MODIFICATION
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SUBPART A: GENERAL PROVISIONS

Section 203.100 Effective Dates
Section 203.101 Definitions
Section 203.103 Actual Construction
Section 203.104 Actual Emissions
Section 203.107 Allowable Emissions
Section 203.110 Available Growth Margin
Section 203.112 Building, Structure and Facility
Section 203.113 Commence
Section 203.116 Construction
Section 203.117 Dispersion Enhancement Techniques
Section 203.119 Emission Baseline
Section 203.121 Emission Offset
Section 203.122 Emissions Unit
Section 203.123 Federally Enforceable
Section 203.124 Fugitive Emissions
Section 203.125 Installation
Section 203.126 Lowest Achievable Emission Rate
Section 203.127 Nonattainment Area
Section 203.128 Potential to Emit
Section 203.131 Reasonable Further Progress
Section 203.134 Secondary Emissions
Section 203.136 Stationary Source
Section 203.145 Volatile Organic Material (Repealed)
Section 203.150 Public Participation
Section 203.155 Severability (Repealed)

SUBPART B: MAJOR STATIONARY SOURCES IN NONATTAINMENT AREAS

Section 203.201 Prohibition
Section 203.202 Coordination with Permit Requirement and Application Pursuant to 35 Ill. Adm. Code 201
Section 203.203 Construction Permit Requirement and Application
Section 203.204 Duration of Construction Permit (Repealed)
Section 203.205 Effect of Permits
Section 203.206 Major Stationary Source
Section 203.207 Major Modification of a Source
Section 203.208 Net Emission Determination
Section 203.209 Significant Emissions Determination
Section 203.210 Relaxation of a Source-Specific Limitation
Section 203.211 Permit Exemption Based on Fugitive Emissions

SUBPART C: REQUIREMENTS FOR MAJOR STATIONARY SOURCES IN NONATTAINMENT AREAS

Section 203.301 Lowest Achievable Emission Rate
Section 203.302 Maintenance of Reasonable Further Progress and Emission Offsets
Section 203.303 Baseline and Emission Offsets Determination
Section 203.304 Exemptions from Emissions Offset Requirement (Repealed)
Section 203.305 Compliance by Existing Sources
Section 203.306 Analysis of Alternatives

SUBPART F: OPERATION OF A MAJOR STATIONARY SOURCE OR MAJOR MODIFICATION

Section 203.601 Lowest Achievable Emission Rate Compliance Requirement
Section 203.602 Emission Offset Maintenance Requirement
Section 203.603 Ambient Monitoring Requirement (Repealed)

SUBPART G: GENERAL MAINTENANCE OF EMISSION OFFSETS

Section 203.701 General Maintenance of Emission Offsets

SUBPART H: OFFSETS FOR EMISSION INCREASES FROM ROCKET ENGINES AND MOTOR FIRING

Section 203.801 Offsetting by Alternative or Innovative Means

SUBPART I: GENERAL PROVISIONS

Section 203.1000 Incorporations by Reference
Section 203.1010 Abbreviations and Acronyms
Section 203.1020 Severability
Section 203.1030 Definitions
Section 203.1040 Actual Emissions
Section 203.1050 Allowable Emissions
Section 203.1060 Available Growth Margin
Section 203.1070 Baseline Actual Emissions
Section 203.1080 Begin Actual Construction
Section 203.1090 Building, Structure, Facility, or Installation
Section 203.1100 Commence
Section 203.1110 Complete
Section 203.1120 Construction
Section 203.1130 Dispersion Technique
Section 203.1140 Electric Utility Steam Generating Unit
Section 203.1150 Emission Offset
Section 203.1160 Emissions Unit
Section 203.1170 Excessive Concentration
Section 203.1180 Federally Enforceable
Section 203.1190 Fugitive Emissions
Section 203.1200 Good Engineering Practice
Section 203.1210 Lowest Achievable Emission Rate
Section 203.1220 Major Modification
Section 203.1230 Major Stationary Source
Section 203.1240 Nearby
Section 203.1250 Necessary Preconstruction Approvals or Permits
Section 203.1260 Net Emissions Increase
Section 203.1270 Nonattainment Area
Section 203.1280 Nonattainment New Source Review (NA NSR) Permit
Section 203.1290 Potential to Emit
Section 203.1300 Process Unit
Section 203.1310 Project
Section 203.1320 Projected Actual Emissions
Section 203.1330 Reasonable Further Progress
Section 203.1340 Regulated NSR Pollutant
Section 203.1350 Replacement Unit
Section 203.1360 Secondary Emissions
Section 203.1370 Significant
Section 203.1380 Significant Emissions Increase
Section 203.1390 Stack in Existence
Section 203.1400 Stationary Source

SUBPART J: MAJOR STATIONARY SOURCES IN NONATTAINMENT AREAS

Section 203.1410 Applicability
Section 203.1420 Effect of Permits
Section 203.1430 Relaxation of a Source-Specific Limitation
Section 203.1440 Prohibitions
Section 203.1450 Control of Ozone, PM10, and PM2.5
Section 203.1460 Permit Exemption Based on Fugitive Emissions

SUBPART K: STACK HEIGHTS

Section 203.1500 Stack Heights

SUBPART L: GENERAL OBLIGATIONS OF THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY

Section 203.1600 Construction Permit
Section 203.1610 Public Participation

SUBPART M: NON-APPLICABILITY RECORDKEEPING AND REPORTING

Section 203.1700 Recordkeeping and Reporting Requirements for Certain Projects at Major Stationary Sources in Nonattainment Areas

SUBPART N: REQUIREMENTS FOR MAJOR STATIONARY SOURCES IN NONATTAINMENT AREAS

Section 203.1800 Lowest Achievable Emission Rate
Section 203.1810 Emissions Offsets
Section 203.1820 Compliance by Existing Sources
Section 203.1830 Analysis of Alternatives

SUBPART O: GENERAL MAINTENANCE OF EMISSION OFFSETS

Section 203.1900 General Maintenance of Emission Offsets

SUBPART P: OFFSETS FOR EMISSION INCREASES FROM ROCKET ENGINES AND MOTOR FIRING

Section 203.2000 Offsetting by Alternative or Innovative Means

SUBPART Q: PLANTWIDE APPLICABILITY LIMITATION

Section 203.2100 Applicability
Section 203.2110 Definitions
Section 203.2120 Actuals PAL
Section 203.2130 Allowable Emissions
Section 203.2140 Best Available Control Technology (BACT)
Section 203.2150 Continuous Emissions Monitoring System (CEMS)
Section 203.2160 Continuous Emissions Rate Monitoring System (CERMS)
Section 203.2170 Continuous Parameter Monitoring System (CPMS)
Section 203.2180 Federal Land Manager
Section 203.2190 Major Emissions Unit
Section 203.2200 Plantwide Applicability Limitation (PAL)
Section 203.2210 PAL Effective Date
Section 203.2220 PAL Effective Period
Section 203.2230 PAL Major Modification
Section 203.2240 PAL Permit
Section 203.2250 PAL Pollutant
Section 203.2260 Predictive Emissions Monitoring System (PEMS)
Section 203.2270 Reasonably Available Control Technology (RACT)
Section 203.2280 Significant Emissions Unit
Section 203.2290 Small Emissions Unit
Section 203.2300 Permit Application Requirements
Section 203.2310 General Requirements for Establishing PAL
Section 203.2320 Public Participation Requirements
Section 203.2330 Setting the 10-Year Actuals PAL Level
Section 203.2340 Contents of the PAL Permit
Section 203.2350 Effective Period and Reopening a PAL Permit
Section 203.2360 Expiration of a PAL
Section 203.2370 Renewal of a PAL
Section 203.2380 Increasing the PAL During the PAL Effective Period
Section 203.2390 Monitoring Requirements
Section 203.2400 Recordkeeping Requirements
Section 203.2410 Reporting and Notification Requirements
Section 203.2420 Transition Requirements

SUBPART R: REQUIREMENTS FOR MAJOR STATIONARY SOURCES IN ATTAINMENT AND UNCLASSIFIABLE AREAS

Section 203.2500 Applicability
Section 203.2510 Criteria
Section 203.2520 Requirements
Section 203.2530 Construction Permit
AUTHORITY: Implementing Sections 9.1 and 10 and authorized by Sections 27 and 28.5 of the Environmental Protection Act [415 ILCS 5/9.1, 10, 27 and 28.5].
SOURCE: Adopted and codified at 7 Ill. Reg. 9344, effective July 22, 1983; codified at 7 Ill. Reg. 13588; amended in R85-20 at 12 Ill. Reg. 6118, effective March 22, 1988; amended in R91-24 at 16 Ill. Reg. 13551, effective August 24, 1992; amended in R92-21 at 17 Ill. Reg. 6973, effective April 30, 1993; amended in R93-9 at 17 Ill. Reg. 16630, effective September 27, 1993; amended in R93-26 at 18 Ill. Reg. 6335, effective April 15, 1994; amended in R98-10 at 22 Ill. Reg. 5674, effective March 10, 1998; amended in R19-1 at 44 Ill. Reg. 14916, effective September 4, 2020; amended in R22-17 at 49 Ill. Reg. 6237, effective April 23, 2025.