Regulations last checked for updates: May 01, 2025

Title 40 - Protection of Environment last revised: Nov 01, 2025
All TitlesTitle 40Chapter IPart 81Subpart C - Subpart C—Section 107 Attainment Status Designations
View all text of Subpart C [§ 81.300 - § 81.356]
§ 81.323 - Michigan.

Michigan—1971 Sulfur Dioxide NAAQS

[Primary and Secondary]

Designated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards
AQCR 82 (Michigan portion)X
AQCR 122
1. Midland County, R2E, T13N, sections 1-6, R2E, T13N, sections 1-6, R2E, T14N, sections 7-36X
AQCR 123X
AQCR 124 (Michigan portion)X
AQCR 125X
AQCR 126X

Michigan—2010 Sulfur Dioxide NAAQS

[Primary]

Designated area 1 Designation
Date 2 Type
Detroit, MI10/4/2013Nonattainment.
Wayne County (part)
The area bounded on the east by the Michigan-Ontario border, on the south by the Wayne County-Monroe County border, on the west by Interstate 75 north to Southfield Road, Southfield Road to Interstate 94, and Interstate 94 north to Michigan Avenue, and on the north by Michigan Avenue to Woodward Avenue and a line on Woodward Avenue extended to the Michigan-Ontario border.
St. Clair, MI9/12/2016Nonattainment.
St. Clair County (part)
Area defined by the St. Clair River for the eastern boundary, an extension from the St. Clair River straight west to the intersection of State Highway M-29 and St. Clair River Drive, continuing west on State Highway M-29 to Church Road to Arnold Road to County Line Road for the southern boundary, County Line Road and the Macomb/St. Clair County boundary to Stoddard Road to Wales Ridge Road for the western boundary, and Alpine Road to Fitz Road to Smith Creek Road to Range Road to Huron Avenue, extending straight east from the intersection of Huron Road and River Road to the St. Clair River for the northern boundary.
Bay County, MI9/12/2016Attainment/Unclassifiable.
Bay County
Lansing, MI9/12/2016Attainment/Unclassifiable.
Eaton County
Ingham County
Marquette County, MI9/12/2016Attainment/Unclassifiable.
Marquette County
Monroe County, MI9/12/2016Attainment/Unclassifiable.
Monroe County
Ottawa County, MI9/12/2016Attainment/Unclassifiable.
Ottawa County
Alcona CountyAttainment/Unclassifiable.
Alger CountyAttainment/Unclassifiable.
Allegan CountyAttainment/Unclassifiable.
Alpena CountyAttainment/Unclassifiable.
Antrim CountyAttainment/Unclassifiable.
Arenac CountyAttainment/Unclassifiable.
Baraga CountyAttainment/Unclassifiable.
Barry CountyAttainment/Unclassifiable.
Benzie CountyAttainment/Unclassifiable.
Berrien CountyAttainment/Unclassifiable.
Branch CountyAttainment/Unclassifiable.
Calhoun CountyAttainment/Unclassifiable.
Cass CountyAttainment/Unclassifiable.
Charlevoix CountyAttainment/Unclassifiable.
Cheboygan CountyAttainment/Unclassifiable.
Chippewa CountyAttainment/Unclassifiable.
Clare CountyAttainment/Unclassifiable.
Clinton CountyAttainment/Unclassifiable.
Crawford CountyAttainment/Unclassifiable.
Delta CountyAttainment/Unclassifiable.
Dickinson CountyAttainment/Unclassifiable.
Emmet CountyAttainment/Unclassifiable.
Genesee CountyAttainment/Unclassifiable.
Gladwin CountyAttainment/Unclassifiable.
Gogebic CountyAttainment/Unclassifiable.
Grand Traverse CountyAttainment/Unclassifiable.
Gratiot CountyAttainment/Unclassifiable.
Hillsdale CountyAttainment/Unclassifiable.
Houghton CountyAttainment/Unclassifiable.
Huron CountyAttainment/Unclassifiable.
Ionia CountyAttainment/Unclassifiable.
Iosco CountyAttainment/Unclassifiable.
Iron CountyAttainment/Unclassifiable.
Isabella CountyAttainment/Unclassifiable.
Jackson CountyAttainment/Unclassifiable.
Kalamazoo CountyAttainment/Unclassifiable.
Kalkaska CountyAttainment/Unclassifiable.
Kent CountyAttainment/Unclassifiable.
Keweenaw CountyAttainment/Unclassifiable.
Lake CountyAttainment/Unclassifiable.
Lapeer CountyAttainment/Unclassifiable.
Leelanau CountyAttainment/Unclassifiable.
Lenawee CountyAttainment/Unclassifiable.
Livingston CountyAttainment/Unclassifiable.
Luce CountyAttainment/Unclassifiable.
Mackinac CountyAttainment/Unclassifiable.
Macomb CountyAttainment/Unclassifiable.
Manistee CountyAttainment/Unclassifiable.
Mason CountyAttainment/Unclassifiable.
Mecosta CountyAttainment/Unclassifiable.
Menominee CountyAttainment/Unclassifiable.
Midland CountyAttainment/Unclassifiable.
Missaukee CountyAttainment/Unclassifiable.
Montcalm CountyAttainment/Unclassifiable.
Montmorency CountyAttainment/Unclassifiable.
Muskegon CountyAttainment/Unclassifiable.
Newaygo CountyAttainment/Unclassifiable.
Oakland CountyAttainment/Unclassifiable.
Oceana CountyAttainment/Unclassifiable.
Ogemaw CountyAttainment/Unclassifiable.
Ontonagon CountyAttainment/Unclassifiable.
Osceola CountyAttainment/Unclassifiable.
Oscoda CountyAttainment/Unclassifiable.
Otsego CountyAttainment/Unclassifiable.
Presque Isle CountyAttainment/Unclassifiable.
Roscommon CountyAttainment/Unclassifiable.
Saginaw CountyAttainment/Unclassifiable.
St. Clair County (remainder)Attainment/Unclassifiable.
St. Joseph CountyAttainment/Unclassifiable.
Sanilac CountyAttainment/Unclassifiable.
Schoolcraft CountyAttainment/Unclassifiable.
Shiawassee CountyAttainment/Unclassifiable.
Tuscola CountyAttainment/Unclassifiable.
Van Buren CountyAttainment/Unclassifiable.
Washtenaw CountyAttainment/Unclassifiable.
Wayne County (remainder)Attainment/Unclassifiable.
Wexford CountyAttainment/Unclassifiable.

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

2 This date is April 9, 2018, unless otherwise noted.

Michigan—Carbon Monoxide

Designated Area Designation Classification
Date 1 Type Date 1 Type
DETROIT AREA
Areas included within the following (counter-clockwise): Lake St. Clair to 14 Mile Road to Kelly Road, N. to 15 Mile Road to Hayes Road, S. to 14 Mile Road to Clawson City Boundary, following N. Clawson City boundary to N. Royal Oak boundary to 13 Mile Road to Evergreen Road to southern Beverly Hills City boundary to southern Bingham Farms City boundary to southern Franklin Hills City boundary to Inkster Road, south to Pennsylvania Road extending east to the Detroit River. Macomb County (part)August 30, 1999Attainment
Oakland County (part)August 30, 1999Attainment
Wayne County (part)August 30, 1999Attainment
AQCR 082 South Bend-Elkhart-Benton Harbor InterstateUnclassifiable/Attainment
Berrien County
Cass County
Van Buren County
AQCR 122 Central Michigan IntrastateUnclassifiable/Attainment
Allegan County
Arenac County
Bay County
Clare County
Genesee County
Gladwin County
Gratiot County
Huron County
Ionia County
Iosco County
Isabella County
Kent County
Lake County
Lapeer County
Mason County
Mecosta County
Midland County
Montcalm County
Muskegon County
Newaygo County
Oceana County
Ogemaw County
Osceola County
Ottawa County
Roscommon County
Saginaw County
Sanilac County
Shiawassee County
Tuscola County
AQCR 123 Metro Detroit-Port Huron Intrastate (Remainder of)Unclassifiable/Attainment
Macomb County (part)
Remainder of County
Oakland County (part)
Remainder of County
St. Clair County
Wayne County (part)
Remainder of County
AQCR 124 Metropolitan Toledo InterstateUnclassifiable/Attainment
Monroe County
AQCR 125 South Central Michigan IntrastateUnclassifiable/Attainment
Barry County
Branch County
Calhoun County
Clinton County
Eaton County
Hillsdale County
Ingham County
Jackson County
Kalamazoo County
Lenawee County
Livingston County
St. Joseph County
Washtenaw County
AQCR 126 Upper Michigan IntrastateUnclassifiable/Attainment
Alcona County
Alger County
Alpena County
Antrim County
Baraga County
Benzie County
Charlevoix County
Cheboygan County
Chippewa County
Crawford County
Delta County
Dickinson County
Emmet County
Gogebic County
Grand Traverse County
Houghton County
Iron County
Kalkaska County
Keweenaw County
Leelanau County
Luce County
Mackinac County
Manistee County
Marquette County
Menominee County
Missaukee County
Montmorency County
Ontonagon County
Oscoda County
Otsego County
Presque Isle County
Schoolcraft County
Wexford County

1 This date is November 15, 1990, unless otherwise noted.

Michigan—Ozone (1-Hour Standard) 4

Designated area Designation Classification
Date 1 Type Date 1 Type
Allegan County Area:
Allegan CountyJanuary 16, 2001Attainment
Barry County Area:
Barry CountyUnclassifiable/Attainment
Battle Creek Area:
Calhoun CountyUnclassifiable/Attainment
Benton Harbor Area:
Berrien CountyUnclassifiable/Attainment
Branch County Area:
Branch CountyUnclassifiable/Attainment
Cass County Area:
Cass CountyUnclassifiable/Attainment
Detroit-Ann Arbor Area:
Livingston CountyAttainment
Macomb CountyAttainment
Monroe CountyAttainment
Oakland CountyAttainment
St. Clair CountyAttainment
Washtenaw CountyAttainment
Wayne CountyAttainment
Flint Area:
Genesee CountyJanuary 16, 2001Attainment
Grand Rapids Area:
Kent CountyAttainment
Ottawa CountyAttainment
Gratiot County Area:
Gratiot CountyUnclassifiable/Attainment
Hillsdale County Area:
Hillsdale CountyUnclassifiable/Attainment
Huron County Area:
Huron CountyUnclassifiable/Attainment
Ionia County Area:
Ionia CountyUnclassifiable/Attainment
Jackson Area:
Jackson CountyUnclassifiable/Attainment
Kalamazoo Area:
Kalamazoo CountyUnclassifiable/Attainment
Lansing-East Lansing Area:
Clinton CountyUnclassifiable/Attainment
Eaton CountyUnclassifiable/Attainment
Ingham CountyUnclassifiable/Attainment
Lapeer County Area:
Lapeer CountyUnclassifiable/Attainment
Lenawee County Area:
Lenawee CountyUnclassifiable/Attainment
Montcalm Area:
Montcalm CountyUnclassifiable/Attainment
Muskegon Area:
Muskegon CountyOctober 18, 2000Attainment
Saginaw-Bay City-Midland Area:
Bay CountyJanuary 16, 2001Attainment
Midland CountyJanuary 16, 2001Attainment
Saginaw CountyJanuary 16, 2001Attainment
Sanilac County Area:
Sanilac CountyUnclassifiable/Attainment
Shiawassee County Area:
Shiawassee CountyUnclassifiable/Attainment
St. Joseph County Area:
St. Joseph CountyUnclassifiable/Attainment
Tuscola County Area:
Tuscola CountyUnclassifiable/Attainment
Van Buren County Area:
Van Buren CountyUnclassifiable/Attainment
AQCR 122 Central Michigan Intrastate (Remainder of):Unclassifiable/Attainment
Arenac County
Clare County
Gladwin County
Iosco County
Isabella County
Lake County
Mason County
Mecosta County
Newaygo County
Oceana County
Ogemaw County
Osceola County
Roscommon County
AQCR 126 Upper Michigan Intrastate (part) Marquette CountyUnclassifiable/Attainment
AQCR 126 Upper Michigan Intrastate (Remainder of):Unclassifiable/Attainment
Alcona County
Alger County
Alpena County
Antrim County
Baraga County
Benzie County
Charlevoix County
Cheboygan County
Chippewa County
Crawford County
Delta County
Dickinson County
Emmet County
Gogebic County
Grand Traverse County
Houghton County
Iron County
Kalkaska County
Keweenaw County
Leelanau County
Luce County
Mackinac County
Manistee County
Menominee County
Missaukee County
Montmorency County
Ontonagon County
Oscoda County
Otsego County
Presque Isle County
Schoolcraft County
Wexford County

1 This date is October 18, 2000, unless otherwise noted.

2 An area designated as an ozone nonattainment area as of the date of enactment of the CAAA of the 1990 that did not violate the ozone NAAQS during the period of 1987-1989.

3 This date is January 16, 2001.

4 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Michigan. The Detroit-Ann Arbor, Flint, Grand Rapids, Muskegon, Allegan Co, and Saginaw-Bay City-Midland areas are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.

Michigan—PM-10

Designated Area Designation Classification
Date Type Date Type
Wayne County—The area bounded by Michigan Avenue from its intersection with I-75 west to I-94, I-94 southwest to Greenfield Road, Greenfield Road south to Schaefer Road, Schaefer Road south and east to Jefferson Avenue, Jefferson Avenue south (Biddle Avenue through the city of Wyandotte) to Sibley Avenue, Sibley Avenue west to Fort Street, Fort Street south to King Road, King Road east to Jefferson Avenue, Jefferson Avenue south to Helen Road, Helen Road east extended to Trenton Channel, Trenton Channel north to the Detroit River, the Detroit River north to the Ambassador Bridge, Ambassador Bridge to I-75, I-75 to Michigan Avenue10/4/1996Attainment
Rest of State11/15/1990Unclassifiable

Michigan—1997 Annual PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification
Date 1 Type Date Type
Detroit-Ann Arbor, MI:8/29/2013Attainment..
Livingston County
Macomb County
Monroe County
Oakland County
St. Clair County
Washtenaw County
Wayne County
Rest of State:
Alcona CountyUnclassifiable/Attainment.
Alger CountyUnclassifiable/Attainment.
Allegan CountyUnclassifiable/Attainment.
Alpena CountyUnclassifiable/Attainment.
Antrim CountyUnclassifiable/Attainment.
Arenac CountyUnclassifiable/Attainment.
Baraga CountyUnclassifiable/Attainment.
Barry CountyUnclassifiable/Attainment.
Bay CountyUnclassifiable/Attainment.
Benzie CountyUnclassifiable/Attainment.
Berrien CountyUnclassifiable/Attainment.
Branch CountyUnclassifiable/Attainment.
Calhoun CountyUnclassifiable/Attainment.
Cass CountyUnclassifiable/Attainment.
Charlevoix CountyUnclassifiable/Attainment.
Cheboygan CountyUnclassifiable/Attainment.
Chippewa CountyUnclassifiable/Attainment.
Clare CountyUnclassifiable/Attainment.
Clinton CountyUnclassifiable/Attainment.
Crawford CountyUnclassifiable/Attainment.
Delta CountyUnclassifiable/Attainment.
Dickinson CountyUnclassifiable/Attainment.
Eaton CountyUnclassifiable/Attainment.
Emmet CountyUnclassifiable/Attainment.
Genesee CountyUnclassifiable/Attainment.
Gladwin CountyUnclassifiable/Attainment.
Gogebic CountyUnclassifiable/Attainment.
Grand Traverse CountyUnclassifiable/Attainment.
Gratiot CountyUnclassifiable/Attainment.
Hillsdale CountyUnclassifiable/Attainment.
Houghton CountyUnclassifiable/Attainment.
Huron CountyUnclassifiable/Attainment.
Ingham CountyUnclassifiable/Attainment.
Ionia CountyUnclassifiable/Attainment.
Iosco CountyUnclassifiable/Attainment.
Iron CountyUnclassifiable/Attainment.
Isabella CountyUnclassifiable/Attainment.
Jackson CountyUnclassifiable/Attainment.
Kalamazoo CountyUnclassifiable/Attainment.
Kalkaska CountyUnclassifiable/Attainment.
Kent CountyUnclassifiable/Attainment.
Keweenaw CountyUnclassifiable/Attainment.
Lake CountyUnclassifiable/Attainment.
Lapeer CountyUnclassifiable/Attainment.
Leelanau CountyUnclassifiable/Attainment.
Lenawee CountyUnclassifiable/Attainment.
Luce CountyUnclassifiable/Attainment.
Mackinac CountyUnclassifiable/Attainment.
Manistee CountyUnclassifiable/Attainment.
Marquette CountyUnclassifiable/Attainment.
Mason CountyUnclassifiable/Attainment.
Mecosta CountyUnclassifiable/Attainment.
Menominee CountyUnclassifiable/Attainment.
Midland CountyUnclassifiable/Attainment.
Missaukee CountyUnclassifiable/Attainment.
Montcalm CountyUnclassifiable/Attainment.
Montmorency CountyUnclassifiable/Attainment.
Muskegon CountyUnclassifiable/Attainment.
Newaygo CountyUnclassifiable/Attainment.
Oceana CountyUnclassifiable/Attainment.
Ogemaw CountyUnclassifiable/Attainment.
Ontonagon CountyUnclassifiable/Attainment.
Osceola CountyUnclassifiable/Attainment.
Oscoda CountyUnclassifiable/Attainment.
Otsego CountyUnclassifiable/Attainment.
Ottawa CountyUnclassifiable/Attainment.
Presque Isle CountyUnclassifiable/Attainment.
Roscommon CountyUnclassifiable/Attainment.
Saginaw CountyUnclassifiable/Attainment.
St. Joseph CountyUnclassifiable/Attainment.
Sanilac CountyUnclassifiable/Attainment.
Schoolcraft CountyUnclassifiable/Attainment.
Shiawassee CountyUnclassifiable/Attainment.
Tuscola CountyUnclassifiable/Attainment.
Van Buren CountyUnclassifiable/Attainment.
Wexford CountyUnclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after January 5, 2005, unless otherwise noted.

Michigan—2012 Annual PM2.5 NAAQS

[Primary]

Designated area 1 Designation Classification
Date 2 Type Date 2 Type
Statewide:
Alcona CountyUnclassifiable/Attainment
Alger CountyUnclassifiable/Attainment
Allegan CountyUnclassifiable/Attainment
Alpena CountyUnclassifiable/Attainment
Antrim CountyUnclassifiable/Attainment
Arenac CountyUnclassifiable/Attainment
Baraga CountyUnclassifiable/Attainment
Barry CountyUnclassifiable/Attainment
Bay CountyUnclassifiable/Attainment
Benzie CountyUnclassifiable/Attainment
Berrien CountyUnclassifiable/Attainment
Branch CountyUnclassifiable/Attainment
Calhoun CountyUnclassifiable/Attainment
Cass CountyUnclassifiable/Attainment
Charlevoix CountyUnclassifiable/Attainment
Cheboygan CountyUnclassifiable/Attainment
Chippewa CountyUnclassifiable/Attainment
Clare CountyUnclassifiable/Attainment
Clinton CountyUnclassifiable/Attainment
Crawford CountyUnclassifiable/Attainment
Delta CountyUnclassifiable/Attainment
Dickinson CountyUnclassifiable/Attainment
Eaton CountyUnclassifiable/Attainment
Emmet CountyUnclassifiable/Attainment
Genesee CountyUnclassifiable/Attainment
Gladwin CountyUnclassifiable/Attainment
Gogebic CountyUnclassifiable/Attainment
Grand Traverse CountyUnclassifiable/Attainment
Gratiot CountyUnclassifiable/Attainment
Hillsdale CountyUnclassifiable/Attainment
Houghton CountyUnclassifiable/Attainment
Huron CountyUnclassifiable/Attainment
Ingham CountyUnclassifiable/Attainment
Ionia CountyUnclassifiable/Attainment
Iosco CountyUnclassifiable/Attainment
Iron CountyUnclassifiable/Attainment
Isabella CountyUnclassifiable/Attainment
Jackson CountyUnclassifiable/Attainment
Kalamazoo CountyUnclassifiable/Attainment
Kalkaska CountyUnclassifiable/Attainment
Kent CountyUnclassifiable/Attainment
Keweenaw CountyUnclassifiable/Attainment
Lake CountyUnclassifiable/Attainment
Lapeer CountyUnclassifiable/Attainment
Leelanau CountyUnclassifiable/Attainment
Lenawee CountyUnclassifiable/Attainment
Livingston CountyUnclassifiable/Attainment
Luce CountyUnclassifiable/Attainment
Mackinac CountyUnclassifiable/Attainment
Macomb CountyUnclassifiable/Attainment
Manistee CountyUnclassifiable/Attainment
Marquette CountyUnclassifiable/Attainment
Mason CountyUnclassifiable/Attainment
Mecosta CountyUnclassifiable/Attainment
Menominee CountyUnclassifiable/Attainment
Midland CountyUnclassifiable/Attainment
Missaukee CountyUnclassifiable/Attainment
Monroe CountyUnclassifiable/Attainment
Montcalm CountyUnclassifiable/Attainment
Montmorency CountyUnclassifiable/Attainment
Muskegon CountyUnclassifiable/Attainment
Newaygo CountyUnclassifiable/Attainment
Oakland CountyUnclassifiable/Attainment
Oceana CountyUnclassifiable/Attainment
Ogemaw CountyUnclassifiable/Attainment
Ontonagon CountyUnclassifiable/Attainment
Osceola CountyUnclassifiable/Attainment
Oscoda CountyUnclassifiable/Attainment
Otsego CountyUnclassifiable/Attainment
Ottawa CountyUnclassifiable/Attainment
Presque Isle CountyUnclassifiable/Attainment
Roscommon CountyUnclassifiable/Attainment
Saginaw CountyUnclassifiable/Attainment
St. Clair CountyUnclassifiable/Attainment
St. Joseph CountyUnclassifiable/Attainment
Sanilac CountyUnclassifiable/Attainment
Schoolcraft CountyUnclassifiable/Attainment
Shiawassee CountyUnclassifiable/Attainment
Tuscola CountyUnclassifiable/Attainment
Van Buren CountyUnclassifiable/Attainment
Washtenaw CountyUnclassifiable/Attainment
Wayne CountyUnclassifiable/Attainment
Wexford CountyUnclassifiable/Attainment

1 Includes areas of Indian country located in each county or area, except as otherwise specified.

2 This date is April 15, 2015, unless otherwise noted.

Michigan—1997 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification
Date 1 Type Date Type
Detroit-Ann Arbor, MI:
Livingston CountyUnclassifiable/Attainment.
Macomb CountyUnclassifiable/Attainment.
Monroe CountyUnclassifiable/Attainment.
Oakland CountyUnclassifiable/Attainment.
St. Clair CountyUnclassifiable/Attainment.
Washtenaw CountyUnclassifiable/Attainment.
Wayne CountyUnclassifiable/Attainment.
Rest of State:
Alcona CountyUnclassifiable/Attainment.
Alger CountyUnclassifiable/Attainment.
Allegan CountyUnclassifiable/Attainment.
Alpena CountyUnclassifiable/Attainment.
Antrim CountyUnclassifiable/Attainment.
Arenac CountyUnclassifiable/Attainment.
Baraga CountyUnclassifiable/Attainment.
Barry CountyUnclassifiable/Attainment.
Bay CountyUnclassifiable/Attainment.
Benzie CountyUnclassifiable/Attainment.
Berrien CountyUnclassifiable/Attainment.
Branch CountyUnclassifiable/Attainment.
Calhoun CountyUnclassifiable/Attainment.
Cass CountyUnclassifiable/Attainment.
Charlevoix CountyUnclassifiable/Attainment.
Cheboygan CountyUnclassifiable/Attainment.
Chippewa CountyUnclassifiable/Attainment.
Clare CountyUnclassifiable/Attainment.
Clinton CountyUnclassifiable/Attainment.
Crawford CountyUnclassifiable/Attainment.
Delta CountyUnclassifiable/Attainment.
Dickinson CountyUnclassifiable/Attainment.
Eaton CountyUnclassifiable/Attainment.
Emmet CountyUnclassifiable/Attainment.
Genesee CountyUnclassifiable/Attainment.
Gladwin CountyUnclassifiable/Attainment.
Gogebic CountyUnclassifiable/Attainment.
Grand Traverse CountyUnclassifiable/Attainment.
Gratiot CountyUnclassifiable/Attainment.
Hillsdale CountyUnclassifiable/Attainment.
Houghton CountyUnclassifiable/Attainment.
Huron CountyUnclassifiable/Attainment.
Ingham CountyUnclassifiable/Attainment.
Ionia CountyUnclassifiable/Attainment.
Iosco CountyUnclassifiable/Attainment.
Iron CountyUnclassifiable/Attainment.
Isabella CountyUnclassifiable/Attainment.
Jackson CountyUnclassifiable/Attainment.
Kalamazoo CountyUnclassifiable/Attainment.
Kalkaska CountyUnclassifiable/Attainment.
Kent CountyUnclassifiable/Attainment.
Keweenaw CountyUnclassifiable/Attainment.
Lake CountyUnclassifiable/Attainment.
Lapeer CountyUnclassifiable/Attainment.
Leelanau CountyUnclassifiable/Attainment.
Lenawee CountyUnclassifiable/Attainment.
Luce CountyUnclassifiable/Attainment.
Mackinac CountyUnclassifiable/Attainment.
Manistee CountyUnclassifiable/Attainment.
Marquette CountyUnclassifiable/Attainment.
Mason CountyUnclassifiable/Attainment.
Mecosta CountyUnclassifiable/Attainment.
Menominee CountyUnclassifiable/Attainment.
Midland CountyUnclassifiable/Attainment.
Missaukee CountyUnclassifiable/Attainment.
Montcalm CountyUnclassifiable/Attainment.
Montmorency CountyUnclassifiable/Attainment.
Muskegon CountyUnclassifiable/Attainment.
Newaygo CountyUnclassifiable/Attainment.
Oceana CountyUnclassifiable/Attainment.
Ogemaw CountyUnclassifiable/Attainment.
Ontonagon CountyUnclassifiable/Attainment.
Osceola CountyUnclassifiable/Attainment.
Oscoda CountyUnclassifiable/Attainment.
Otsego CountyUnclassifiable/Attainment.
Ottawa CountyUnclassifiable/Attainment.
Presque Isle CountyUnclassifiable/Attainment.
Roscommon CountyUnclassifiable/Attainment.
Saginaw CountyUnclassifiable/Attainment.
St. Joseph CountyUnclassifiable/Attainment.
Sanilac CountyUnclassifiable/Attainment.
Schoolcraft CountyUnclassifiable/Attainment.
Shiawassee CountyUnclassifiable/Attainment.
Tuscola CountyUnclassifiable/Attainment.
Van Buren CountyUnclassifiable/Attainment.
Wexford CountyUnclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after January 5, 2005, unless otherwise noted.

Michigan—2006 24-Hour PM2.5 NAAQS

[Primary and Secondary]

Designated area Designation a Classification
Date 1 Type Date Type
Detroit-Ann Arbor, MI:8/29/2013Attainment.
Livingston County
Macomb County
Monroe County
Oakland County
St. Clair County
Washtenaw County
Wayne County
Rest of State:
Alcona CountyUnclassifiable/Attainment.
Alger CountyUnclassifiable/Attainment.
Allegan CountyUnclassifiable/Attainment.
Alpena CountyUnclassifiable/Attainment.
Antrim CountyUnclassifiable/Attainment.
Arenac CountyUnclassifiable/Attainment.
Baraga CountyUnclassifiable/Attainment.
Barry CountyUnclassifiable/Attainment.
Bay CountyUnclassifiable/Attainment.
Benzie CountyUnclassifiable/Attainment.
Berrien CountyUnclassifiable/Attainment.
Branch CountyUnclassifiable/Attainment.
Calhoun CountyUnclassifiable/Attainment.
Cass CountyUnclassifiable/Attainment.
Charlevoix CountyUnclassifiable/Attainment.
Cheboygan CountyUnclassifiable/Attainment.
Chippewa CountyUnclassifiable/Attainment.
Clare CountyUnclassifiable/Attainment.
Clinton CountyUnclassifiable/Attainment.
Crawford CountyUnclassifiable/Attainment.
Delta CountyUnclassifiable/Attainment.
Dickinson CountyUnclassifiable/Attainment.
Eaton CountyUnclassifiable/Attainment.
Emmet CountyUnclassifiable/Attainment.
Genesee CountyUnclassifiable/Attainment.
Gladwin CountyUnclassifiable/Attainment.
Gogebic CountyUnclassifiable/Attainment.
Grand Traverse CountyUnclassifiable/Attainment.
Gratiot CountyUnclassifiable/Attainment.
Hillsdale CountyUnclassifiable/Attainment.
Houghton CountyUnclassifiable/Attainment.
Huron CountyUnclassifiable/Attainment.
Ingham CountyUnclassifiable/Attainment.
Ionia CountyUnclassifiable/Attainment.
Iosco CountyUnclassifiable/Attainment.
Iron CountyUnclassifiable/Attainment.
Isabella CountyUnclassifiable/Attainment.
Jackson CountyUnclassifiable/Attainment.
Kalamazoo CountyUnclassifiable/Attainment.
Kalkaska CountyUnclassifiable/Attainment.
Kent CountyUnclassifiable/Attainment.
Keweenaw CountyUnclassifiable/Attainment.
Lake CountyUnclassifiable/Attainment.
Lapeer CountyUnclassifiable/Attainment.
Leelanau CountyUnclassifiable/Attainment.
Lenawee CountyUnclassifiable/Attainment.
Luce CountyUnclassifiable/Attainment.
Mackinac CountyUnclassifiable/Attainment.
Manistee CountyUnclassifiable/Attainment.
Marquette CountyUnclassifiable/Attainment.
Mason CountyUnclassifiable/Attainment.
Mecosta CountyUnclassifiable/Attainment.
Menominee CountyUnclassifiable/Attainment.
Midland CountyUnclassifiable/Attainment.
Missaukee CountyUnclassifiable/Attainment.
Montcalm CountyUnclassifiable/Attainment.
Montmorency CountyUnclassifiable/Attainment.
Muskegon CountyUnclassifiable/Attainment.
Newaygo CountyUnclassifiable/Attainment.
Oceana CountyUnclassifiable/Attainment.
Ogemaw CountyUnclassifiable/Attainment.
Ontonagon CountyUnclassifiable/Attainment.
Osceola CountyUnclassifiable/Attainment.
Oscoda CountyUnclassifiable/Attainment.
Otsego CountyUnclassifiable/Attainment.
Ottawa CountyUnclassifiable/Attainment.
Presque Isle CountyUnclassifiable/Attainment.
Roscommon CountyUnclassifiable/Attainment.
Saginaw CountyUnclassifiable/Attainment.
St. Joseph CountyUnclassifiable/Attainment.
Sanilac CountyUnclassifiable/Attainment.
Schoolcraft CountyUnclassifiable/Attainment.
Shiawassee CountyUnclassifiable/Attainment.
Tuscola CountyUnclassifiable/Attainment.
Van Buren CountyUnclassifiable/Attainment.
Wexford CountyUnclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 30 days after November 13, 2009, unless otherwise noted.

Michigan—NO2 (1971 Annual Standard)

Designated area Does not meet primary standards Cannot be classified or better than national standards
State of MichiganX

Michigan—NO2 (2010 1-Hour Standard)

Designated area Designation a
Date 1 Type
Alcona CountyUnclassifiable/Attainment.
Alger CountyUnclassifiable/Attainment.
Allegan CountyUnclassifiable/Attainment.
Alpena CountyUnclassifiable/Attainment.
Antrim CountyUnclassifiable/Attainment.
Arenac CountyUnclassifiable/Attainment.
Baraga CountyUnclassifiable/Attainment.
Barry CountyUnclassifiable/Attainment.
Bay CountyUnclassifiable/Attainment.
Benzie CountyUnclassifiable/Attainment.
Berrien CountyUnclassifiable/Attainment.
Branch CountyUnclassifiable/Attainment.
Calhoun CountyUnclassifiable/Attainment.
Cass CountyUnclassifiable/Attainment.
Charlevoix CountyUnclassifiable/Attainment.
Cheboygan CountyUnclassifiable/Attainment.
Chippewa CountyUnclassifiable/Attainment.
Clare CountyUnclassifiable/Attainment.
Clinton CountyUnclassifiable/Attainment.
Crawford CountyUnclassifiable/Attainment.
Delta CountyUnclassifiable/Attainment.
Dickinson CountyUnclassifiable/Attainment.
Eaton CountyUnclassifiable/Attainment.
Emmet CountyUnclassifiable/Attainment.
Genesee CountyUnclassifiable/Attainment.
Gladwin CountyUnclassifiable/Attainment.
Gogebic CountyUnclassifiable/Attainment.
Grand Traverse CountyUnclassifiable/Attainment.
Gratiot CountyUnclassifiable/Attainment.
Hillsdale CountyUnclassifiable/Attainment.
Houghton CountyUnclassifiable/Attainment.
Huron CountyUnclassifiable/Attainment.
Ingham CountyUnclassifiable/Attainment.
Ionia CountyUnclassifiable/Attainment.
Iosco CountyUnclassifiable/Attainment.
Iron CountyUnclassifiable/Attainment.
Isabella CountyUnclassifiable/Attainment.
Jackson CountyUnclassifiable/Attainment.
Kalamazoo CountyUnclassifiable/Attainment.
Kalkaska CountyUnclassifiable/Attainment.
Kent CountyUnclassifiable/Attainment.
Keweenaw CountyUnclassifiable/Attainment.
Lake CountyUnclassifiable/Attainment.
Lapeer CountyUnclassifiable/Attainment.
Leelanau CountyUnclassifiable/Attainment.
Lenawee CountyUnclassifiable/Attainment.
Livingston CountyUnclassifiable/Attainment.
Luce CountyUnclassifiable/Attainment.
Mackinac CountyUnclassifiable/Attainment.
Macomb CountyUnclassifiable/Attainment.
Manistee CountyUnclassifiable/Attainment.
Marquette CountyUnclassifiable/Attainment.
Mason CountyUnclassifiable/Attainment.
Mecosta CountyUnclassifiable/Attainment.
Menominee CountyUnclassifiable/Attainment.
Midland CountyUnclassifiable/Attainment.
Missaukee CountyUnclassifiable/Attainment.
Monroe CountyUnclassifiable/Attainment.
Montcalm CountyUnclassifiable/Attainment.
Montmorency CountyUnclassifiable/Attainment.
Muskegon CountyUnclassifiable/Attainment.
Newaygo CountyUnclassifiable/Attainment.
Oakland CountyUnclassifiable/Attainment.
Oceana CountyUnclassifiable/Attainment.
Ogemaw CountyUnclassifiable/Attainment.
Ontonagon CountyUnclassifiable/Attainment.
Osceola CountyUnclassifiable/Attainment.
Oscoda CountyUnclassifiable/Attainment.
Otsego CountyUnclassifiable/Attainment.
Ottawa CountyUnclassifiable/Attainment.
Presque Isle CountyUnclassifiable/Attainment.
Roscommon CountyUnclassifiable/Attainment.
Saginaw CountyUnclassifiable/Attainment.
St. Clair CountyUnclassifiable/Attainment.
St. Joseph CountyUnclassifiable/Attainment.
Sanilac CountyUnclassifiable/Attainment.
Schoolcraft CountyUnclassifiable/Attainment.
Shiawassee CountyUnclassifiable/Attainment.
Tuscola CountyUnclassifiable/Attainment.
Van Buren CountyUnclassifiable/Attainment.
Washtenaw CountyUnclassifiable/Attainment.
Wayne CountyUnclassifiable/Attainment.
Wexford CountyUnclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is 90 days after October 31, 2011, unless otherwise noted.

Michigan—1997 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation a Category/classification
Date 1 Type Date 1 Type
Allegan County, MI:
Allegan County9/24/2010Attainment
Barry County Area:
Benton Harbor, MI:
Berrien County5/16/2007Attainment
Benzie County, MI:
Benzie County5/16/2007Attainment
Branch County Area:
Branch CountyUnclassifiable/Attainment
Cass County, MI:
Cass County5/16/2007Attainment
Detroit-Ann Arbor, MI:
Lenawee County6/29/2009Attainment
Livingston County.
Macomb County
Monroe County
Oakland County
St. Clair County
Washtenaw County
Wayne County
Flint, MI:
Genesee County5/16/2007Attainment
Lapeer County
Grand Rapids, MI:
Kent County5/16/2007Attainment
Ottawa County
Gratiot County Area:
Gratiot CountyUnclassifiable/Attainment
Hillsdale County Area:
Hillsdale CountyUnclassifiable/Attainment
Huron County, MI:
Huron County5/16/2007Attainment
Ionia County Area:
Ionia CountyUnclassifiable/Attainment
Jackson Area:
Jackson CountyUnclassifiable/Attainment
Kalamazoo-Battle Creek, MI:
Calhoun County5/16/2007Attainment
Kalamazoo County
Van Buren County
Lansing-East Lansing, MI:
Clinton County5/16/2007Attainment
Eaton County
Ingham County
Mason County, MI:
Mason County5/16/2007Attainment
Montcalm Area:
Montcalm CountyUnclassifiable/Attainment
Muskegon, MI:
Muskegon County5/16/2007Attainment
Saginaw-Bay City-Midland Area:
Bay CountyUnclassifiable/Attainment
Midland CountyUnclassifiable/Attainment
Saginaw CountyUnclassifiable/Attainment
Sanilac County Area:
Sanilac CountyUnclassifiable/Attainment
Shiawassee County Area:
Shiawassee CountyUnclassifiable/Attainment
St Joseph County Area:
St Joseph CountyUnclassifiable/Attainment
Tuscola County Area:
Tuscola CountyUnclassifiable/Attainment
AQCR 122 Central Michigan Intrastate (remainder of)Unclassifiable/Attainment
Arenac County
Clare County
Gladwin County
Iosco County
Isabella County
Lake County
Mecosta County
Newaygo County
Oceana County
Ogemaw County
Osceola County
Roscommon County
AQCR 126 Upper Michigan Intrastate (part)Unclassifiable/Attainment
Marquette County
AQCR 126 Upper Michigan Intrastate (remainder of)Unclassifiable/Attainment
Alcona County
Alger County
Alpena County
Antrim County
Baraga County
Charlevoix County
Cheboygan County
Chippewa County
Crawford County
Delta County
Dickinson County
Emmet County
Gogebic County
Grand Traverse County
Houghton County
Iron County
Kalkaska County
Keweenaw County
Leelanau County
Luce County
Mackinac County
Manistee County
Menominee County
Missaukee County
Montmorency County
Ontonagon County
Oscoda County
Otsego County
Presque Isle County
Schoolcraft County
Wexford County

a Includes Indian Country located in each county or area, except as otherwise specified.

1 This date is June 15, 2004, unless otherwise noted.

2 November 22, 2004.

Michigan—2008 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area Designation Classification
Date 1 Type Date 1 Type
Statewide and Any Areas of Indian CountryUnclassifiable/Attainment

1 This date is July 20, 2012, unless otherwise noted.

Michigan—2015 8-Hour Ozone NAAQS

[Primary and Secondary]

Designated area 1 Designation Classification
Date 2 Type Date 2 Type
Allegan County, MINonattainment1/16/2025Serious.
Allegan County (part):
Casco Township, Cheshire Township, City of Douglas, City of Holland, City of Saugatuck, Clyde Township, Fillmore Township, Ganges Township, Heath Township, Laketown Township, Lee Township, Manilus Township, Overisel Township, Saugatuck Township, and Valley Township.
Berrien County, MI:Nonattainment1/16/2025Serious.
Berrien County.
Detroit, MI5/19/2023Attainment
Livingston County
Macomb County
Monroe County
Oakland County
St Clair County
Washtenaw County
Wayne County
Muskegon County, MI Nonattainment1/16/2025Serious.
Muskegon County (part):
Blue Lake Township, City of Montague, City of Muskegon, City of Muskegon Heights, City of North Muskegon, City of Roosevelt Park, City of Whitehall, Dalton Township, (incl. Village of Lakewood Club), Fruitland Township, Fruitport Township, (incl. Village of Fruitport), Laketon Township, Montague Township, Muskegon Township, Norton Shores Township, White River Township, and Whitehall Township.
Alcona County1/16/2018Attainment/Unclassifiable
Alger County1/16/2018Attainment/Unclassifiable
Allegan County (part) remainderAttainment/Unclassifiable
Alpena County1/16/2018Attainment/Unclassifiable
Antrim County1/16/2018Attainment/Unclassifiable
Arenac County1/16/2018Attainment/Unclassifiable
Baraga County1/16/2018Attainment/Unclassifiable
Barry CountyAttainment/Unclassifiable
Bay County1/16/2018Attainment/Unclassifiable
Benzie County1/16/2018Attainment/Unclassifiable
Branch County1/16/2018Attainment/Unclassifiable
Calhoun County1/16/2018Attainment/Unclassifiable
Cass CountyAttainment/Unclassifiable
Charlevoix County1/16/2018Attainment/Unclassifiable
Cheboygan County1/16/2018Attainment/Unclassifiable
Chippewa County1/16/2018Attainment/Unclassifiable
Clare County1/16/2018Attainment/Unclassifiable
Clinton County1/16/2018Attainment/Unclassifiable
Crawford County1/16/2018Attainment/Unclassifiable
Delta County1/16/2018Attainment/Unclassifiable
Dickinson County1/16/2018Attainment/Unclassifiable
Eaton County1/16/2018Attainment/Unclassifiable
Emmet County1/16/2018Attainment/Unclassifiable
Genesee CountyAttainment/Unclassifiable
Gladwin County1/16/2018Attainment/Unclassifiable
Gogebic County1/16/2018Attainment/Unclassifiable
Grand Traverse County1/16/2018Attainment/Unclassifiable
Gratiot County1/16/2018Attainment/Unclassifiable
Hillsdale County1/16/2018Attainment/Unclassifiable
Houghton County1/16/2018Attainment/Unclassifiable
Huron County1/16/2018Attainment/Unclassifiable
Ingham County1/16/2018Attainment/Unclassifiable
Ionia CountyAttainment/Unclassifiable
Iosco County1/16/2018Attainment/Unclassifiable
Iron County1/16/2018Attainment/Unclassifiable
Isabella County1/16/2018Attainment/Unclassifiable
Jackson County1/16/2018Attainment/Unclassifiable
Kalamazoo CountyAttainment/Unclassifiable
Kalkaska County1/16/2018Attainment/Unclassifiable
Kent CountyAttainment/Unclassifiable
Keweenaw County1/16/2018Attainment/Unclassifiable
Lake County1/16/2018Attainment/Unclassifiable
Lapeer CountyAttainment/Unclassifiable
Leelanau County1/16/2018Attainment/Unclassifiable
Lenawee CountyAttainment/Unclassifiable
Luce County1/16/2018Attainment/Unclassifiable
Mackinac County1/16/2018Attainment/Unclassifiable
Manistee County1/16/2018Attainment/Unclassifiable
Marquette County1/16/2018Attainment/Unclassifiable
Mason County1/16/2018Attainment/Unclassifiable
Mecosta CountyAttainment/Unclassifiable
Menominee County1/16/2018Attainment/Unclassifiable
Midland County1/16/2018Attainment/Unclassifiable
Missaukee County1/16/2018Attainment/Unclassifiable
Montcalm CountyAttainment/Unclassifiable
Montmorency County1/16/2018Attainment/Unclassifiable
Muskegon County (part) remainderAttainment/Unclassifiable
Newaygo CountyAttainment/Unclassifiable
Oceana CountyAttainment/Unclassifiable
Ogemaw County1/16/2018Attainment/Unclassifiable
Ontonagon County1/16/2018Attainment/Unclassifiable
Osceola County1/16/2018Attainment/Unclassifiable
Oscoda County1/16/2018Attainment/Unclassifiable
Otsego County1/16/2018Attainment/Unclassifiable
Ottawa CountyAttainment/Unclassifiable
Presque Isle County1/16/2018Attainment/Unclassifiable
Roscommon County1/16/2018Attainment/Unclassifiable
Saginaw County1/16/2018Attainment/Unclassifiable
St. Joseph County1/16/2018Attainment/Unclassifiable
Sanilac CountyAttainment/Unclassifiable
Schoolcraft County1/16/2018Attainment/Unclassifiable
Shiawassee County1/16/2018Attainment/Unclassifiable
Tuscola County1/16/2018Attainment/Unclassifiable
Van Buren CountyAttainment/Unclassifiable
Wexford County1/16/2018Attainment/Unclassifiable

1 Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

2 This date is August 3, 2018, unless otherwise noted.

Michigan—2008 Lead NAAQS

Designated area Designation for the 2008 NAAQS a
Date 1 Type
Belding, MI:
Ionia County (part)5/31/2017Attainment.
The area bounded by the following coordinates: Southeast corner by latitude 43.0956705 N and longitude 85.2130771 W; southwest corner (intersection of S. Broas St. and W. Washington St.) by latitude 43.0960358 N and longitude 85.2324027 W; northeast corner by latitude 43.1074942 N and longitude 85.2132313 W; western boundary 1 (intersection of W. Ellis St. and the vertical extension of S. Broas St.) by latitude 43.1033277 N and longitude 85.2322553 W; western boundary 2 (intersection of W. Ellis St. and N. Bridge St.) by latitude 43.1033911 N and longitude 85.2278464 W; western boundary 3 (intersection of N. Bridge St. and Earle St.) by latitude 43.1074479 N and longitude 85.2279722 W.
Rest of StateUnclassifiable/Attainment.

a Includes Indian Country located in each county or area, except as otherwise specified.

1 December 31, 2011 unless otherwise noted.

[43 FR 8964, Mar. 3, 1978] Editorial Note:For Federal Register citations affecting § 81.323, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.
authority: 42 U.S.C. 7401,
source: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 81.323
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