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  2. Air Quality Implementation Plans

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

Name of Nonregulatory SIP Provision Applicable geographic or nonattainment area State submittal date EPA Approval date Comments
Control Strategy (IPP) Southeast Wisconsin Interstate 3/3/1972 3/2/1976, 41 FR 8956  
Air Quality Monitoring Network Statewide 4/18/1980, 9/15/1980 6/9/1981, 46 FR 30496  
PM-10 Committal SIPs Group II areas within the Cities of DePere, Madison, Milwaukee, Superior, and Waukesha 4/30/1988 and 3/30/1990 8/14/1990, 55 FR 33118  
Photochemical assessment ambient monitoring system (PAMS) Statewide 11/15/1993 3/18/1994, 59 FR 12851  
Transportation Conformity Statewide 8/1/2013 2/27/2014, 79 FR 10995  
Attainment Plans
Carbon Monoxide Green Bay and Madison areas 7/12/1979, 9/4/1979, 2/28/1980, 8/12/1980, 9/25/1980, 11/4/1980 and 4/9/1981 8/20/1981, 46 FR 42269 Brown and Dane Counties.
Carbon Monoxide Milwaukee area 3/8/1983 3/9/1984, 49 FR 8920 Kenosha, Milwaukee, Ozaukee, Racine, Walworth. Washington, and Waukesha Counties.
Lead NAAQS (1978) Statewide 9/20/1983, 2/14/1984, and 3/14/1984 11/6/1984, 49 FR 44287  
Ozone 1-Hour Green Bay and Madison areas 7/12/1979, 9/4/1979, 2/28/1980, 8/12/1980, 9/25/1980, 11/4/1980 and 4/9/1981 8/20/1981, 46 FR 42269 Brown and Dane Counties.
Ozone 1-Hour Milwaukee area 3/8/1983 3/9/1984, 49 FR 8920 Kenosha, Milwaukee, Ozaukee, Racine, Walworth. Washington, and Waukesha Counties.
Ozone 1-Hour Statewide 1/24/1985 6/28/1985, 50 FR 26735 Test 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-Hour Kewaunee, Manitowoc, Sheboygan and Milwaukee areas 6/30/1994 7/28/1995, 60 FR 38722 Facilities 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-Hour Door, Kenosha, Kewaunee, Manitowoc, Milwaukee, Ozaukee, Racine, Sheboygan, Walworth, Washington, and Waukesha Counties 7/13/1994 1/26/1996, 61 FR 2428 NOx RACT, NSR, vehicle IM, and general conformity exemptions
Ozone 1-Hour Milwaukee and Manitowoc 7/10/1996 2/3/1998, 63 FR 5460  
Ozone 1-Hour Milwaukee-Racine 12/11/1997, 8/5/1999, 1/31/2000, 3/3/2000, and 2/21/2001 10/10/2001, 66 FR 51572 Post-1996 ROP plan for Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties
Ozone 1-Hour Milwaukee-Racine 12/27/2000, May 28/2001, 6/6/2001, and 8/29/2001 11/13/2001, 66 FR 56931 Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties
Ozone NAAQS (1997) Walworth County 9/8/2000 10/26/2000, 65 FR 64142 Revised motor vehicle emissions budgets.
Ozone NAAQS (1997) Milwaukee-Racine, WI 1/31/2003 6/20/2003, 68 FR 36917 Revised motor vehicle emissions budgets for Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties
Ozone NAAQS (1997) Sheboygan County 1/31/2003 6/20/2003, 68 FR 36917 Revised motor vehicle emissions budgets. Includes Inland and Shoreline Sheboygan Counties
Ozone NAAQS (2008) Sheboygan County 1/16/2015 7/6/2015, 80 FR 38400 Early Progress Plan and motor vehicle emissions budgets. Includes Inland and Shoreline Sheboygan Counties
Ozone NAAQS (2008) Chicago-Naperville, IL-IN-WI 1/16/2015 8/23/2016, 81 FR 57463 Early Progress Plan and motor vehicle emissions budgets for Kenosha County (part).
Ozone NAAQS (2008) Chicago-Naperville, IL-IN-WI 8/15/2016, 4/17/2017 and 1/23/2018 2/13/2019, 84 FR 3701 Kenosha County (part)
Ozone NAAQS (2008) Chicago-Naperville, IL-IN-WI 12/1/2020 3/1/2022, 87 FR 11310 Kenosha County (part) Serious Plan Elements
Ozone NAAQS (2008) Chicago-Naperville, IL-IN-WI and Sheboygan County 7/19/2018 5/3/2019, 84 FR 18989 NSR requirements for marginal and moderate ozone nonattainment areas
Ozone NAAQS (2015) Statewide 7/27/2021 1/19/2022, 87 FR 2719 NNSR certification
SO2 NAAQS (2010) Rhinelander, WI 1/22/2016, 7/18/2016, 11/29/2016, 3/29/2021 3/23/21, 86 FR 15418 Oneida County (part) - City of Rhinelander and Crescent, Newbold, Pine Lake, and Pelican Townships.
Maintenance Plans
Ozone 1-Hour Kewaunee, Sheboygan, and Walworth Counties 12/15/1995 and May 15/1996 8/26/1996, 60 FR 43668  
Ozone 1-Hour Door and Manitowoc Counties 1/28/2003, 2/5/2003 and 2/27/2003 4/17/2003, 68 FR 18883  
Ozone 1-Hour Kewaunee County 1/28/2003, 2/5/2003 and 2/27/2003 5/10/2004, 69 FR 25835 Revised maintenance plan.
Ozone NAAQS (1997) Kewaunee County 6/12/2007 5/21/2008, 73 FR 29436  
Ozone NAAQS (1997) Door and Manitowoc County areas 9/11/2009 7/12/2010, 75 FR 39635  
Ozone NAAQS (1997) Milwaukee-Racine 9/11/2009, 11/16/2011 7/31/2012, 77 FR 45252 Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties
Ozone NAAQS (1997) Door County, Kewaunee County, Manitowoc County, and Milwaukee-Racine areas 12/13/2019 6/16/2020, 85 FR 36342 2nd Maintenance Plans
Ozone NAAQS (2008) Inland Sheboygan County 10/9/2019 7/10/2020, 85 FR 41400  
Ozone NAAQS (2008) Shoreline Sheboygan County 2/11/2020 7/10/2020, 85 FR 41405  
Ozone NAAQS (2008) Chicago-Naperville, IL-IN-WI 12/3/2021 4/11/2022, 87 FR 21027 Kenosha County (part).
Ozone NAAQS (2015) Door County (part) 1/27/2020 6/10/2020, 85 FR 35377 Newport State Park Boundary
Ozone NAAQS (2015) Manitowoc County 10/29/2021 3/31/2022, 87 FR 18702  
Ozone NAAQS (2015) Door County-Revised (part) 1/5/2022 4/29/2022, 87 FR 25410  
PM2.5 NAAQS (2006) Milwaukee-Racine, WI 6/8/2012 4/22/2014, 79 FR 22415 Milwaukee, Racine and Waukesha Counties.
PM2.5 NAAQS (2006) Milwaukee-Racine, WI 12/23/2015 2/22/2016, 81 FR 8654 Revised maintenance plan for Milwaukee, Racine and Waukesha Counties.
SO2 NAAQS (1971) Dane County 6/9/1992 5/24/1993, 58 FR 29787 City of Madison
SO2 NAAQS (1971) Milwaukee County 6/12/1992 5/24/1993, 58 FR 29783 City of Milwaukee
SO2 NAAQS (1971) Oneida County 11/5/1999 11/15/2000, 65 FR 68901 City of Rhinelander
SO2 NAAQS (1971) Marathon County 11/17/2000 5/29/2002, 67 FR 37328 Villages of Rothschild and Weston and Township of Rib Mountain.
SO2 NAAQS (2010) Rhinelander, WI 7/28/2021 1/12/2022, 87 FR 1685 Oneida County (part) - City of Rhinelander and Crescent, Newbold, Pine Lake, and Pelican Townships.
Determinations of Attainment
Ozone 1-Hour Milwaukee-Racine 7/28/2008 4/24/2009, 74 FR 18641 Determination 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 11080 Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties
Ozone NAAQS (1997) Sheboygan County   3/1/2011, 76 FR 11080 Includes 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 21027 Kenosha County (part)
Ozone NAAQS (2015) Door County (part)   6/10/2020, 85 FR 35377 Newport 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 22415 Milwaukee, Racine and Waukesha Counties
Infrastructure Requirements
Lead NAAQS (2008) Statewide 7/26/2012, 7/2/2015 and 8/8/2016 2/7/2017, 82 FR 9515 Fully approved for all CAA elements.
NO2 NAAQS (2010) Statewide 6/20/2013, 1/28/2015, 7/2/2015 and 8/8/2016 2/7/2017, 82 FR 9515 Fully approved for all CAA elements.
Ozone NAAQS (1997) Statewide 12/12/2007, 1/24/2011, 3/28/2011, 7/2/2015 and 8/8/2016 2/7/2017, 82 FR 9515 Fully approved for all CAA elements except (D)(i)(I).
Ozone NAAQS (2008) Statewide 6/20/2013, 1/28/2015, 7/2/2015 and 8/8/2016 2/7/2017, 82 FR 9515 Fully approved for all CAA elements except prong 2 of (D)(i)(I).
PM2.5 NAAQS (1997) Statewide 12/12/2007, 1/24/2011, 3/28/2011, 7/2/2015 and 8/8/2016 2/7/2017, 82 FR 9515 Fully approved for all CAA elements except (D)(i)(I).
PM2.5 NAAQS (2006) Statewide 1/24/2011, 3/28/2011, 7/2/2015 and 8/8/2016 2/7/2017, 82 FR 9515 Fully approved for all CAA elements except (D)(i)(I).
PM2.5 NAAQS (2012) Statewide 7/13/2015 and 8/8/2016 10/4/2019, 84 FR 53063 Fully approved for all CAA elements except the stationary source monitoring and reporting requirements of 110(a)(2)(F).
SO2 NAAQS (2010) Statewide 6/20/2013, 1/28/2015, 7/2/2015 and 8/8/2016 2/7/2017, 82 FR 9515 Fully approved for all CAA elements except (D)(i)(I).
Negative Declarations
VOC source categories Statewide 9/19/1984, 11/7/1984 and 6/6/1986 11/24/1986, 51 FR 42221 Includes: 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 categories Statewide 4/17/1990 and 6/30/1994 7/28/1995, 60 FR 38722 Includes: 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 Code Inland Sheboygan County 10/9/2019 7/10/2020, 85 FR 41400 Includes: 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 sources Shoreline Sheboygan County 2/11/2020 7/10/2020, 85 FR 41405 Includes: 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 Code Chicago-Naperville, IL-IN-WI 12/1/2020 3/1/2022, 87 FR 11310 Includes: 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 Areas 1/15/1993 6/15/1994, 59 FR 30702 1990 base year emissions inventories for Door, Kenosha, Kewaunee, Manitowoc, Milwaukee, Ozaukee, Racine, Sheboygan, Walworth, Washington, and Waukesha Counties
Ozone NAAQS (1997) Milwaukee-Racine 1/28/2003, 2/5/2003 and 2/27/2003 4/17/2003, 68 FR 18883 1999 periodic emissions inventory for Kenosha, Milwaukee, Ozaukee, Racine, Washington, and Waukesha Counties
Ozone NAAQS (1997) Manitowoc and Door Counties 6/12/2007 and 9/11/2009 7/12/2010, 75 FR 39635 2005 base year emissions inventories
Ozone NAAQS (1997) Milwaukee-Racine and Sheboygan 9/11/2009, 11/16/2011 7/31/2012, 77 FR 45252 2005 base year emissions inventories for Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington, and Waukesha Counties
Ozone NAAQS (2008) Chicago-Naperville, IL-IN-WI and Sheboygan County 11/14/2014 3/7/2016, 81 FR 11673 Includes Kenosha County (part), Inland and Shoreline Sheboygan Counties
Ozone NAAQS (2015) Manitowoc County 10/29/2021 3/31/2022, 87 FR 18702 2017 base year emissions inventory
Ozone NAAQS (2015) Door County-Revised (part) 1/5/2022 4/29/2022, 87 FR 25410 2014 base year emissions inventory
PM2.5 NAAQS (2006) Milwaukee-Racine, WI 6/8/2012 and 5/30/2013 4/22/2014, 79 FR 22417 Milwaukee, Racine and Waukesha Counties
Visibility Protection
Regional Haze Plan Statewide 1/18/2012 and 6/7/2012 8/7/2012, 77 FR 46952 First implementation period
Regional Haze Five-Year Progress Report Statewide 3/17/2017 6/15/2018, 83 FR 27912 First implementation period

Air Quality Implementation Plans

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Last updated on May 16, 2024
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