Approved Air Quality Implementation Plans in Region 5
See below to find approved State Implementation Plans (SIPs), Tribal Implementation Plans (TIPs), and Federal Implementation Plans (FIPs) within the EPA Region 5 states of Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin and Tribal Nations.
State Implementation Plans
EPA-approved regulations and planning documents. For further assistance, please email Christos Panos.
Illinois
- EPA Approved Statutes and Regulations in the Illinois SIP
- EPA Approved Illinois Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Illinois SIP
Indiana
- EPA Approved Regulations and Statutes in the Indiana SIP
- EPA Approved Indiana Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Indiana SIP
Michigan
- EPA Approved Regulations and Statutes in the Michigan SIP
- EPA Approved Michigan Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Michigan SIP
Minnesota
- EPA Approved Statutes and Regulations in the Minnesota SIP
- EPA Approved Minnesota Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Minnesota SIP
Ohio
- EPA Approved Regulations in the Ohio SIP
- EPA Approved Ohio Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Ohio SIP
Wisconsin
- EPA Approved Regulations and Statutes in the Wisconsin SIP
- EPA Approved Wisconsin Source-Specific Requirements
- EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Wisconsin SIP
Tribal Implementation Plans
Region 5 currently has no approved TIPs.
Federal Implementation Plans
| Michigan | |||
|---|---|---|---|
| CFR Section Affected | CFR Section Heading | Final FR Published Date | Final FR Citation |
| 40 CFR 52.1183 | Visibility protection. | 7/12/1985 | 50 FR 28544 |
| 11/24/1987 | 52 FR 45137 | ||
| 6/7/2012 | 77 FR 33657 | ||
| 12/3/2012 | 77 FR 71550 | ||
| 2/6/2013 | 78 FR 8733 | ||
| 9/30/2013 | 78 FR 59839 | ||
| 4/12/2016 | 81 FR 21681 | ||
| 1/10/2017 | 82 FR 3129 | ||
| 40 CFR 52.1186 | Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of nitrogen oxides? | Aug. 8, 2011 | 76 FR 48367 |
| Dec. 27, 2011 | 76 FR 80774 | ||
| Dec. 3, 2014 | 79 FR 71671 | ||
| Oct. 26, 2016 | 81 FR 74586, 74597 | ||
| Dec. 21, 2018 | 83 FR 65924 | ||
| Apr. 30, 2021 | 86 FR 23175 | ||
| 40 CFR 52.1187 | Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of sulfur dioxide? | Nov. 2, 2007 | 72 FR 62350 |
| Aug. 8, 2011 | 76 FR 48368 | ||
| Dec. 3, 2014 | 79 FR 71671 | ||
| Oct. 26, 2016 | 81 FR 74586, 74597 |
| Minnesota | |||
|---|---|---|---|
| CFR Section Affected | CFR Section Heading | Final FR Published Date | Final FR Citation |
| 40 CFR 52.1235 | Regional haze | 2/6/2013 | 78 FR 8738 |
| 4/12/2016 | 81 FR 21687 | ||
| 3/2/2021 | 86 FR 12106 | ||
| 40 CFR 52.1236 | Visibility protection. | 7/12/1985 | 50 FR 28544 |
| 11/24/1987 | 52 FR 45137 | ||
| 9/30/2013 | 78 FR 59839 | ||
| 3/7/2016 | 81 FR 11670 | ||
| 1/10/2017 | 82 FR 3129 | ||
| 40 CFR 52.1240 | Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of nitrogen oxides? | Nov. 2, 2007 | 72 FR 62350 |
| Oct. 3, 2009 | 74 FR 56726 | ||
| Aug. 8, 2011 | 76 FR 48368 | ||
| Oct. 26, 2016 | 81 FR 74586, 74597 | ||
| 40 CFR 52.1241 | Interstate pollutant transport provisions; What are the FIP requirements for decreases in emissions of sulfur dioxide? | Nov. 2, 2007 | 72 FR 62350 |
| Oct. 3, 2009 | 74 FR 56726 | ||
| Aug. 8, 2011 | 76 FR 48368 | ||
| Oct. 26, 2016 | 81 FR 74586, 74597 |