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

EPA-Approved Wisconsin Nonregulatory and Quasi-Regulatory Provisions

Name of nonregulatory SIP provisionApplicable geographic or nonattainment areaState submittal dateEPA approval dateComments
Control Strategy (IPP)Southeast Wisconsin Interstate3/3/19723/2/1976, 41 FR 8956 
Air Quality Monitoring NetworkStatewide4/18/1980,
9/15/1980
6/9/1981, 46 FR 30496 
PM-10 Committal SIPsGroup II areas within the Cities of DePere, Madison, Milwaukee, Superior, and Waukesha4/30/1988
and 3/30/1990
8/14/1990, 55 FR 33118 
Photochemical assessment ambient monitoring system (PAMS)Statewide11/15/19933/18/1994, 59 FR 12851 
Transportation ConformityStatewide8/1/20132/27/2014, 79 FR 10995 
Attainment Plans
Carbon MonoxideGreen Bay and Madison areas7/12/1979,
9/4/1979,
2/28/1980,
8/12/1980,
9/25/1980,
11/4/1980
and 4/9/1981
8/20/1981, 46 FR 42269Brown and Dane Counties.
Carbon MonoxideMilwaukee area3/8/19833/9/1984, 49 FR 8920Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington, and Waukesha Counties.
Lead NAAQS (1978)Statewide9/20/1983,
2/14/1984,
and 3/14/1984
11/6/1984, 49 FR 44287 
Ozone 1-HourGreen Bay and Madison areas7/12/1979,
9/4/1979,
2/28/1980,
8/12/1980,
9/25/1980,
11/4/1980
and 4/9/1981
8/20/1981, 46 FR 42269Brown and Dane Counties.
Ozone 1-HourMilwaukee area3/8/19833/9/1984, 49 FR 8920Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington, and Waukesha Counties.
Ozone 1-HourStatewide1/24/19856/28/1985, 50 FR 26735Test Methods for Petroleum Dry Cleaning Sources incorporated as part of State's “Air Management Operations Handbook” and element of State's VOC RACT program.
Ozone 1-HourKewaunee, Manitowoc, Sheboygan and Milwaukee areas6/30/19947/28/1995, 60 FR 38722Facilities subject to the post-enactment CTG source categories listed in Appendix E to the General Preamble. Includes cleanup solvents, offset lithography, plastic parts coating, and wood furniture coating facilities. The Milwaukee area includes Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties.
Ozone 1-HourDoor, Kenosha, Kewaunee, Manitowoc, Milwaukee, Ozaukee, Racine, Sheboygan, Walworth, Washington, and Waukesha Counties7/13/19941/26/1996, 61 FR 2428NOX RACT, NSR, vehicle IM, and general conformity exemptions.
Ozone 1-HourMilwaukee and Manitowoc7/10/19962/3/1998, 63 FR 5460 
Ozone 1-HourMilwaukee-Racine12/11/1997,
8/5/1999,
1/31/2000,
3/3/2000,
and 2/21/2001
10/10/2001, 66 FR 51572Post-1996 ROP plan for Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties.
Ozone 1-HourMilwaukee-Racine12/27/2000,
5/28/2001,
6/6/2001,
and 8/29/2001
11/13/2001, 66 FR 56931Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties.
Ozone NAAQS (1997)Walworth County9/8/200010/26/2000, 65 FR 64142Revised motor vehicle emissions budgets.
Ozone NAAQS (1997)Milwaukee-Racine, WI1/31/20036/20/2003, 68 FR 36917Revised motor vehicle emissions budgets for Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties.
Ozone NAAQS (1997)Sheboygan County1/31/20036/20/2003, 68 FR 36917Revised motor vehicle emissions budgets. Includes Inland and Shoreline Sheboygan Counties.
Ozone NAAQS (2008)Sheboygan County1/16/20157/6/2015, 80 FR 38400Early Progress Plan and motor vehicle emissions budgets. Includes Inland and Shoreline Sheboygan Counties.
Ozone NAAQS (2008)Chicago-Naperville, IL-IN-WI1/16/20158/23/2016, 81 FR 57463Early Progress Plan and motor vehicle emissions budgets for Kenosha County (part).
Ozone NAAQS (2008)Chicago-Naperville, IL-IN-WI8/15/2016,
4/17/2017
and 1/23/2018
2/13/2019, 84 FR 3701Kenosha County (part).
Ozone NAAQS (2008)Chicago-Naperville, IL-IN-WI12/1/20203/1/2022, 87 FR 11310Kenosha County (part) Serious Plan Elements.
Ozone NAAQS (2008)Chicago-Naperville, IL-IN-WI and Sheboygan County7/19/20185/3/2019, 84 FR 18989NSR requirements for marginal and moderate ozone nonattainment areas.
Ozone NAAQS (2015)Statewide7/27/20211/19/2022, 87 FR 2719NNSR certification.
SO2 NAAQS (2010)Rhinelander, WI1/22/2016,
7/18/2016,
11/29/2016,
3/29/2021
10/22/2021, 86 FR 58577Oneida County (part)—City of Rhinelander and Crescent, Newbold, Pine Lake, and Pelican Townships.
Maintenance Plans
Ozone 1-HourKewaunee, Sheboygan, and Walworth Counties12/15/1995
and 5/15/1996
8/26/1996, 60 FR 43668 
Ozone 1-HourDoor and Manitowoc Counties1/28/2003,
2/5/2003
and 2/27/2003
4/17/2003, 68 FR 18883 
Ozone 1-HourKewaunee County1/28/2003,
2/5/2003
and 2/27/2003
5/10/2004, 69 FR 25835Revised maintenance plan.
Ozone NAAQS (1997)Kewaunee County6/12/20075/21/2008, 73 FR 29436 
Ozone NAAQS (1997)Door and Manitowoc County areas9/11/20097/12/2010, 75 FR 39635 
Ozone NAAQS (1997)Milwaukee-Racine9/11/2009,
11/16/2011
7/31/2012, 77 FR 45252Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties.
Ozone NAAQS (1997)Door County, Kewaunee County, Manitowoc County, and Milwaukee-Racine areas12/13/20196/16/2020, 85 FR 363422nd Maintenance Plans.
Ozone NAAQS (2008)Inland Sheboygan County10/9/20197/10/2020, 85 FR 41400 
Ozone NAAQS (2008)Shoreline Sheboygan County2/11/20207/10/2020, 85 FR 41405 
Ozone NAAQS (2008)Chicago-Naperville, IL-IN-WI12/3/20214/11/2022, 87 FR 21027Kenosha County (part).
Ozone NAAQS (2015)Door County (part)1/27/20206/10/2020, 85 FR 35377Newport State Park Boundary.
Ozone NAAQS (2015)Manitowoc County10/29/20213/31/2022, 87 FR 18702 
Ozone NAAQS (2015)Door County-Revised (part)1/5/20224/29/2022, 87 FR 25410 
PM2.5 NAAQS (2006)Milwaukee-Racine, WI6/8/20124/22/2014, 79 FR 22415Milwaukee, Racine and Waukesha Counties.
PM2.5 NAAQS (2006)Milwaukee-Racine, WI12/23/20152/22/2016, 81 FR 8654Revised maintenance plan for Milwaukee, Racine and Waukesha Counties.
PM2.5 NAAQS (2006)Milwaukee-Racine, WI4/8/20227/9/2024, 89 FR 56231Second Limited Maintenance Plan for Milwaukee-Racine.
SO2 NAAQS (1971)Dane County6/9/19925/24/1993, 58 FR 29787City of Madison.
SO2 NAAQS (1971)Milwaukee County6/12/19925/24/1993, 58 FR 29783City of Milwaukee.
SO2 NAAQS (1971)Oneida County11/5/199911/15/2000, 65 FR 68901City of Rhinelander.
SO2 NAAQS (1971)Marathon County11/17/20005/29/2002, 67 FR 37328Villages of Rothschild and Weston and Township of Rib Mountain.
SO2 NAAQS (2010)Rhinelander, WI7/28/20211/12/2022, 87 FR 1685Oneida County (part)—City of Rhinelander and Crescent, Newbold, Pine Lake, and Pelican Townships.
Determinations of Attainment
Ozone 1-HourMilwaukee-Racine7/28/20084/24/2009, 74 FR 18641Determination of attainment of the revoked 1-hour ozone NAAQS for Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties.
Ozone NAAQS (1997)Door County 7/12/2010, 75 FR 39635 
Ozone NAAQS (1997)Manitowoc County 7/12/2010, 75 FR 39635 
Ozone NAAQS (1997)Milwaukee-Racine 3/1/2011, 76 FR 11080Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties.
Ozone NAAQS (1997)Sheboygan County 3/1/2011, 76 FR 11080Includes Inland and Shoreline Sheboygan Counties
Ozone NAAQS (2008)Inland Sheboygan County 7/15/2019, 84 FR 33699 
Ozone NAAQS (2008)Chicago-Naperville, IL-IN-WI 4/11/2022, 87 FR 21027Kenosha County (part).
Ozone NAAQS (2015)Door County (part) 6/10/2020, 85 FR 35377Newport State Park Boundary.
Ozone NAAQS (2015)Door County-Revised (part) 4/29/2022, 87 FR 25410 
PM-2.5 NAAQS (2006)Milwaukee-Racine 4/22/2014, 79 FR 22415Milwaukee, Racine and Waukesha Counties.
Infrastructure Requirements
Lead NAAQS (2008)Statewide7/26/2012,
7/2/2015
and 8/8/2016
2/7/2017, 82 FR 9515Fully approved for all CAA elements.
NO2 NAAQS (2010)Statewide6/20/2013,
1/28/2015,
7/2/2015
and 8/8/2016
2/7/2017, 82 FR 9515Fully approved for all CAA elements.
Ozone NAAQS (1997)Statewide12/12/2007,
1/24/2011,
3/28/2011,
7/2/2015
and 8/8/2016
2/7/2017, 82 FR 9515Fully approved for all CAA elements except (D)(i)(I).
Ozone NAAQS (2008)Statewide6/20/2013,
1/28/2015,
7/2/2015
and 8/8/2016
2/7/2017, 82 FR 9515Fully approved for all CAA elements except prong 2 of (D)(i)(I).
Ozone NAAQS (2015)Statewide9/14/2018
and 8/3/2022
8/30/2024, 89 FR 70500Fully approved for all CAA elements except prong 2 of (D)(i)(I).
PM2.5 NAAQS (1997)Statewide12/12/2007,
1/24/2011,
3/28/2011,
7/2/2015
and 8/8/2016
2/7/2017, 82 FR 9515Fully approved for all CAA elements except (D)(i)(I).
PM2.5 NAAQS (2006)Statewide1/24/2011,
3/28/2011,
7/2/2015
and 8/8/2016
2/7/2017, 82 FR 9515Fully approved for all CAA elements except (D)(i)(I).
PM2.5 NAAQS (2012)Statewide7/13/2015
and 8/8/2016
7/24/2023, 88 FR 47375Fully approved for all CAA elements.
SO2 NAAQS (2010)Statewide6/20/2013,
1/28/2015,
7/2/2015
and 8/8/2016
2/7/2017, 82 FR 9515Fully approved for all CAA elements except (D)(i)(I).
Negative Declarations
VOC source categoriesStatewide9/19/1984,
11/7/1984
and 6/6/1986
11/24/1986, 51 FR 42221Includes: High-density polyethylene, polypropylene, and polystyrene resin manufacturers, Natural gas/gasoline processing plants leaks, and Synthetic organic chemical manufacturing industry sources (SOCMI) leaks and oxidation.
Pre-1990 CTG categoriesStatewide4/17/1990
and 6/30/1994
7/28/1995, 60 FR 38722Includes: Leaks from petroleum refinery equipment; Manufacture of synthesized pharmaceutical products; Manufacture of pneumatic rubber tires; Automobile and light duty truck manufacturing; Fire truck and emergency response vehicle manufacturing; Manufacture of high-density polyethylene, polypropylene, and polystyrene resins, a.k.a. polymer manufacturing; Leaks from synthetic organic chemical and polymer manufacturing equipment; Air oxidation processes at synthetic organic chemical manufacturing industries; and Equipment leaks from natural gas/gasoline processing plants.
Post-1990 CTGs not incorporated into Wisconsin Administrative CodeInland Sheboygan County10/9/20197/10/2020, 85 FR 41400Includes: shipbuilding and ship repair (1996), aerospace manufacturing (1997), fiberglass boat manufacturing (2008), miscellaneous industrial adhesives (2008), miscellaneous metal and plastic parts coatings (2008), automobile and light-duty truck assembly coatings (2008), and oil and natural gas industry (2016).
Post-1990 CTGs not incorporated into Wisconsin Administrative Code and non-CTG major sourcesShoreline Sheboygan County2/11/20207/10/2020 85 FR 41405Includes: shipbuilding and ship repair (1996), aerospace manufacturing (1997), fiberglass boat manufacturing (2008), miscellaneous industrial adhesives (2008), miscellaneous metal and plastic parts coatings (2008), automobile and light-duty truck assembly coatings (2008), and oil and natural gas industry (2016). EPA also approved negative declaration for non-CTG major sources.
Post-1990 CTGs not incorporated into Wisconsin Administrative CodeChicago-Naperville, IL-IN-WI12/1/20203/1/2022, 87 FR 11310Includes: shipbuilding and ship repair (1996), aerospace manufacturing (1997), fiberglass boat manufacturing (2008), miscellaneous industrial adhesives (2008), miscellaneous metal and plastic parts coatings (2008), automobile and light-duty truck assembly coatings (2008), and oil and natural gas industry (2016).
Emission Inventories
Ozone NAAQS (1997)Door, Kewaunee, Manitowoc, Milwaukee-Racine, Sheboygan and Walworth Areas1/15/19936/15/1994, 59 FR 307021990 base year emissions inventories for Door, Kenosha, Kewaunee, Manitowoc, Milwaukee, Ozaukee, Racine, Sheboygan, Walworth, Washington, and Waukesha Counties.
Ozone NAAQS (1997)Milwaukee-Racine1/28/2003,
2/5/2003
and 2/27/2003
4/17/2003, 68 FR 188831999 periodic emissions inventory for Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties.
Ozone NAAQS (1997)Manitowoc and Door Counties6/12/2007
and 9/11/2009
7/12/2010, 75 FR 396352005 base year emissions inventories.
Ozone NAAQS (1997)Milwaukee-Racine and Sheboygan9/11/2009,
11/16/2011
7/31/2012, 77 FR 452522005 base year emissions inventories for Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington, and Waukesha Counties.
Ozone NAAQS (2008)Chicago-Naperville, IL-IN-WI and Sheboygan County11/14/20143/7/2016, 81 FR 11673Includes Kenosha County (part), Inland and Shoreline Sheboygan Counties.
Ozone NAAQS (2015)Manitowoc County10/29/20213/31/2022, 87 FR 187022017 base year emissions inventory.
Ozone NAAQS (2015)Door County-Revised (part)1/5/20224/29/2022, 87 FR 254102014 base year emissions inventory.
PM2.5 NAAQS (2006)Milwaukee-Racine, WI6/8/2012
and 5/30/2013
4/22/2014, 79 FR 22417Milwaukee, Racine and Waukesha Counties.
Site-Specific SO 2 Emission Limits
Jacob Leinenkugel Brewing Company 9/29/19865/21/1993, 58 FR 29537AO 86-609037440-N01 Limiting the emissions and operation of Boiler #20 at the facility in Chippewa Falls, Chippewa County, Wisconsin.
Rock Road of Wisconsin 9/29/19865/21/1993, 58 FR 29537AO 86-999019320-J01 Limiting the emissions and operation of fuel burning equipment at the facility in Janesville, Rock County, Wisconsin.
Visibility Protection
Regional Haze PlanStatewide1/18/2012
and 6/7/2012
8/7/2012, 77 FR 46952First implementation period.
Regional Haze Five-Year Progress ReportStatewide3/17/20176/15/2018, 83 FR 27912First implementation period.
Regional Haze PlanStatewide7/30/202111/19/2024, 89 FR 91269Second implementation period.

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Last updated on January 27, 2026
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