Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Air Quality Implementation Plans

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Illinois SIP

Name of SIP provision Applicable geographic or nonattainment area State submittal date EPA approval date Comments
Air quality surveillance network State-wide 12/20/1979 3/4/1981,46 FR 15137  
Coal ban Chicago Area 10/22/1973 3/2/1976,41 FR 8956  
Compliance schedules State-wide 3/13/1973,
4/3/1973,
5/3/1973,
6/15/1973, and
8/7/1973
3/2/1976,41 FR 8956  
Ozone (8-hour, 2008) certification of emissions statement regulations Chicago and St. Louis areas 5/9/2017 7/11/2017,82 FR 31913 Certification that Illinois' previously approved regulations at 35 IAC part 254 meet the emission statement requirements for the 2008 ozone NAAQS.
Ozone (8-hour, 2008) Nonattainment New Source Review Requirements Chicago area 5/23/2018 2/6/2019,84 FR 2063  
Ozone (8-hour, 2015) certification of emissions statement regulations Chicago and St. Louis areas 5/16/2019 1/24/2020,85 FR 4231 Certification that Illinois' previously approved regulations at 35 IAC Part 254 meet the emissions statement requirements for the 2015 ozone NAAQS.
Regional haze plan Statewide 6/24/2011 7/6/2012,77 FR 39943  
Regional Haze Progress Report Statewide 2/1/2017 4/12/2018,83 FR 15744  
Small business stationary source technical and environmental compliance assistance program State-wide 11/12/1992 8/30/1993,58 FR 45451  
Total Suspended Particulate Control Strategy analysis State-wide 10/1/1981 9/30/1982,47 FR 43054  
Transportation control plan Chicago Area 4/17/1973 3/2/1976,41 FR 8956  
Transportation control plan Chicago Area 4/30/1980 1/27/1981,46 FR 8472  
Transportation control plan Chicago Area 8/20/1980 and 3/20/1981 11/16/1981,46 FR 56196  
Transportation control plan Peoria Area 10/15/1980 11/16/1981,46 FR 56196  
Transportation control plan St. Louis Area 4/1/1981 11/16/1981,46 FR 56196  
Transportation control plans Chicago and St. Louis areas 12/3/1982 10/4/1990,55 FR 40658  
Attainment and Maintenance Plans
Carbon monoxide attainment demonstration Chicago Area 5/4/1983 10/4/1990,55 FR 40658  
Lead (1978) attainment and maintenance plan Granite City area 9/30/1983 7/24/1984,49 FR 29790  
Lead (2008) - Clean Data Determination Chicago Area N/A 8/25/2015,80 FR 51131  
Lead (2008) Redesignation and maintenance plan Chicago and Granite City areas 9/22/2016 3/28/2018,83 FR 13198  
Ozone (1-hour) attainment demonstration Chicago area 12/26/2000 11/13/2001,66 FR 56904  
Ozone (1-hour) attainment demonstration St. Louis area 11/15/1999,
2/10/2000,
4/13/2001, and 4/30/2001
6/26/2001,66 FR 33996 EPA is disapproving the request for an exemption from the NOX NSR and certain NOX conformity requirements for Madison, Monroe, and St. Clair Counties.
Ozone (1-hour) attainment plan revision Chicago severe nonattainment area 4/11/2003 9/15/2003,68 FR 53887  
Ozone (1-hour) redesignation and maintenance plan Jersey County 11/12/1993 3/14/1995,60 FR 13634  
Ozone (1-hour) redesignation and maintenance plan St. Louis Area 12/30/2002 5/12/2003,68 FR 25542  
Ozone (1-hour revoked) finding of attainment Chicago area 1/30/2007 12/30/2008,73 FR 79652  
Ozone (8-hour, 1997) Determination of Attainment Chicago area N/A 7/8/2011,76 FR 40262 Correction to codification published on 3/12/2010 at75 FR 12088.
Ozone (8-hour, 1997) Determination of Attainment St. Louis area N/A 6/9/2011,76 FR 33647  
Ozone (8-hour, 1997) maintenance plan revision Chicago area 3/28/2014 10/6/2014,79 FR 60073 Revised VOC and NOX Motor Vehicle Emissions Budgets (MVEB) for the year 2025.
Ozone (8-hour, 1997) redesignation and maintenance plan Chicago area 7/23/2009, and 9/16/2011 8/13/2012,77 FR 48062  
Ozone (8-hour, 1997) redesignation and maintenance plan St. Louis area 5/26/2010, and 9/16/2011 6/12/2012,77 FR 34819  
Ozone (8-hour, 2008) Determination of Attainment St. Louis area N/A 6/27/2016,81 FR 41444 determination that the area attained by the 7/20/2016 attainment date.
Ozone (8-hour, 2008) redesignation and maintenance plan St. Louis area 5/8/2017 3/1/2018,83 FR 8756  
PM10 maintenance plan Granite City area 3/19/1996, and 10/15/1996 3/11/1998,47 FR 11842  
PM10 maintenance plan Lake Calumet (Southeast Chicago), Cook County 8/2/2005, as supplemented on 9/8/2005 9/22/2005,70 FR 55545  
PM10 maintenance plan LaSalle County 6/2/1995, and 1/9/1996 8/8/1996,61 FR 41342  
PM10 maintenance plan Lyons Township (McCook), Cook County 8/2/2005 9/22/2005,70 FR 55541  
PM2.5 (1997) - Clean Data Determination St. Louis area N/A 5/23/2011,76 FR 29652  
PM2.5 (1997) - Determination of Attainment Chicago area N/A 11/27/2009,74 FR 62243  
PM2.5 (1997) - Determination of Attainment St. Louis area N/A 6/27/2012,77 FR 38184  
PM2.5 (1997) - maintenance plan and motor vehicle emissions budgets Chicago area 10/15/2010, supplemented on 9/16/2011, and 5/6/2013 10/2/2013,78 FR 60704  
PM2.5 (1997) - maintenance plan and motor vehicle emissions budgets St. Louis area 12/6/2018 5/28/2019,84 FR 24395  
Sulfur dioxide (2010) nonattainment plans Lemont and Pekin 3/2/2016 2/1/2018,83 FR 4591  
Sulfur dioxide control strategy Cincinnati, Pekin and Elm Grove Townships in Tazewell County and Logan and Limestone Townships in Peoria County 3/24/1983 and 5/3/1983 8/8/1984,49 FR 31685 Correction to codification published on 2/9/1994 at59 FR 5955.
Sulfur dioxide maintenance plan Peoria and Hollis Townships in Peoria County and Groveland Township in Tazewell County 11/10/1994 60 FR 17001, 4/4/1995  
Sulfur dioxide (2010) maintenance plan Lemont and Pekin 5/24/2019 5/26/2020,85 FR 31378  
Emission Inventories
Emission inventory - 1990 (1-hour ozone) Chicago and St. Louis areas 11/12/1993 3/14/1995,60 FR 13631  
Emission inventories - 2002 (NOX, primary PM2.5, SO2, ammonia, and VOC) Chicago area 10/15/2010, supplemented on 5/6/2013 10/2/2013,78 FR 60704  
Emissions inventory - 2002 (1997 8-hour ozone) St. Louis area 5/26/2010, supplemented on 9/16/2011 6/12/2012,77 FR 34819  
Emissions inventory - 2002 (1997 8-hour ozone) Chicago area 6/21/2006, supplemented on 9/16/2011 8/13/2012,77 FR 48062  
Emissions inventories - 2008 (NOX, primary PM2.5, SO2, ammonia, and VOC) St. Louis area 12/6/2018 5/28/2019,84 FR 24395  
Emission inventory - 2011 (2008 8-hour ozone) St. Louis area 9/3/2014 3/7/2016,81 FR 11671  
Emission inventory - 2011 (2008 8-hour ozone) Chicago area 1/10/2019 8/19/2020,85 FR 50955  
Emission inventory - 2012 (2008 Lead) Chicago and Granite City areas 9/22/2016 3/28/2018,83 FR 13198  
Moderate Area & Above Ozone Requirements
15 percent rate-of-progress and 3 percent contingency plans Chicago and St. Louis areas 11/15/1993 12/18/1997,62 FR 66279  
I/M certification (8-hour, 2008 ozone) Chicago area 1/10/2019 8/19/2020,85 FR 50955  
Negative declaration - Natural gas/gasoline processing plants State-wide 11/14/1985 11/24/1986,51 FR 42221  
Negative declaration - Aerospace manufacturing and rework industry Chicago and St. Louis areas 10/11/1996 2/11/1997,62 FR 6127  
Negative declaration - Industrial cleaning solvents category St. Louis area 10/2/1998 1/6/1999,64 FR 756  
Negative declaration - Industrial cleaning solvents category Chicago area 12/23/1999 2/7/2001,66 FR 9206  
Negative declaration - Industrial wastewater category Chicago area 12/23/1999 4/27/2001,66 FR 21096  
Negative declaration - Industrial wastewater category St. Louis area 10/2/1998 1/6/1999,64 FR 756  
Negative declaration - Shipbuilding and ship repair industry Chicago and St. Louis areas 10/11/1996 2/11/1997,62 FR 6126  
2008 8-hour Ozone Negative Declarations Chicago area 1/10/2019 8/13/2021,86 FR 44616 Includes: Aerospace Manufacturing and Rework Facilities, High-Density Polyethylene, Polypropylene, and Polystyrene Resins, Natural Gas/Gasoline Processing Plants, Oil and Natural Gas Industry, Shipbuilding and Ship Repair Industry, and Vegetable Oil Processing.
2008 8-hour Ozone Section 182(b)(2) VOC RACT Rules Certification Chicago area 1/10/2019 8/13/2021,86 FR 44616  
2008 8-hour Ozone Non-CTG RACT Demonstration - Chicago area 1/10/2019 8/13/2021,86 FR 44616 Industrial Wastewater Category.
NOX RACT waiver (1997 8-hour ozone) Chicago and St. Louis areas 7/29/2010 2/22/2011,76 FR 9655  
NOX waiver - RACT, NSR, vehicle I/M, and general conformity Chicago severe nonattainment area 7/13/1994 1/26/1996,61 FR 2428 does not cover the exemption of NOX transportation conformity requirements.
NOX waiver - transportation conformity requirements Chicago severe nonattainment area 6/20/1995 2/12/1996,61 FR 5291  
Photochemical assessment ambient monitoring system (PAMS)   11/4/1993 2/25/1994,59 FR 9091  
Post-1996 Rate Of Progress Plan Chicago area 12/18/1997,
12/17/1999,
1/14/2000,
1/21/2000, and
2/17/2000
12/18/2000,65 FR 78961 Includes Contingency measure plan and Transportation Control Measures (TCMs).
Transportation control measures as part of the 15 percent rate-of-progress and 3 percent contingency plans St. Louis area 11/15/1993 12/18/1997,62 FR 66279 Work trip reductions; transit improvements; and traffic flow improvements.
Vehicle miles traveled (VMT) SIP and, transportation control measures (TCMs) as part of the 15 percent rate-of-progress plan Chicago area 7/14/1994 9/21/1995,60 FR 48896  
Section 110(a)(2) Infrastructure Requirements
1997 8-hour Ozone NAAQS Infrastructure Requirements Statewide 12/12/2007 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved except (D)(i)(I) [Prongs 1 and 2]. A FIP is in place for these elements.
1997 PM2.5 NAAQS Infrastructure Requirements Statewide 12/12/2007 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved except (D)(i)(I) [Prongs 1 and 2]. A FIP is in place for these elements.
2006 24-hour PM2.5 NAAQS Infrastructure Requirements Statewide 8/9/2011, supplemented on 8/25/2011, 6/27/2012, 7/5/2017 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved except (D)(i)(I) [Prongs 1 and 2]. A FIP is in place for these elements.
2008 Lead NAAQS Infrastructure Requirements Statewide 12/31/2012, 7/5/2017 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved.
2008 Ozone NAAQS Infrastructure Requirements Statewide 12/31/2012, 7/5/2017 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved except (D)(i)(I) [Prongs 1 and 2]. A FIP is in place for these elements.
2010 NO2 NAAQS Infrastructure Requirements Statewide 12/31/2012, 7/5/2017 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved.
2010 SO2 NAAQS Infrastructure Requirements Statewide 12/31/2012, 7/5/2017 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved except (D)(i)(I) [Prongs 1 and 2], which have not yet been submitted.
2012 PM2.5 NAAQS Infrastructure Requirements Statewide 9/29/2017 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved.
2015 Ozone NAAQS Infrastructure Requirements Statewide 5/16/2019 and 9/22/2020 9/29/2021,86 FR 53872 All CAA infrastructure elements under 110(a)(2) have been approved except (D)(i)(I) Prongs 1, 2 and (D)(i)(II) Prong 4. No action has been taken on those elements.

Air Quality Implementation Plans

  • About Air Quality Implementation Plans
  • Approved Air Quality Implementation Plans
  • Develop an Air Quality SIP
  • Find a Regional Contact for Air Quality SIPs/FIPS/TIPs
  • Tools for SIP Status
Contact Us about Air Quality Implementation Plans
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on February 6, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.