{"data":{"id":"us/40-cfr-81.320","jurisdiction":"us","citation":"40 CFR 81.320","heading":"Maine.","body":"Maine—TSP\nDesignated areas Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standards\nAQCR 107 (Central ME):\nAugusta X\nLewiston/Auburn X\nRockland X\nRemainder of AQCR X\nAQCR 109 (Downeast):\nLincoln X\nBangor/Brewer X\nBaileyville X\nRemainder of AQCR X\nAQCR 108 (Aroostook) X\nAQCR 111 (Northwest ME) X\nAQCR 110 (Met. Portland) X\nMaine—1971 Sulfur Dioxide NAAQS\n[Primary and Secondary]\nDesignated area Does not meet primary standards Does not meet secondary standards Cannot be classified Better than national standard\nAQCR 110 X\nAQCR 107 X\nAQCR 109 X\nAQCR 108-Madawaska X\nRest of region X\nAQCR 111 X\nMaine—2010 Sulfur Dioxide NAAQS\n[Primary]\nDesignated area 1 Designation\nDate 2 Type\nStatewide: Attainment/Unclassifiable.\nAndroscoggin County\nAroostook County\nCumberland County\nFranklin County\nHancock County\nKennebec County\nKnox County\nLincoln County\nOxford County\nPenobscot County\nPiscataquis County\nSagadahoc County\nSomerset County\nWaldo County\nWashington County\nYork County\n1 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.\n2 This date is April 9, 2018, unless otherwise noted.\nMaine—Carbon Monoxide\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nStatewide Unclassifiable/ Attainment\nAndroscoggin County\nAroostook County\nCumberland County\nFranklin County\nHancock County\nKennebec County\nKnox County\nLincoln County\nOxford County\nPenobscot County\nPiscataquis County\nSagadahoc County\nSomerset County\nWaldo County\nWashington County\nYork County\n1 This date is November 15, 1990, unless otherwise noted.\nMaine—Ozone (1-Hour Standard)4\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nFranklin County Area:\nFranklin County (part) Unclassifiable/Attainment\nHancock County and Waldo County Area:\nHancock County Attainment\nWaldo County Attainment\nKnox County and Lincoln County Area:\nKnox County (3) Nonattainment (3) Moderate.\nLincoln County (3) Nonattainment (3) Moderate.\nLewiston-Auburn Area:\nAndroscoggin County (3) Nonattainment (3) Moderate.\nKennebec County (3) Nonattainment (3) Moderate.\nOxford County Area:\nOxford County (part) Unclassifiable/Attainment\nPortland Area:\nCumberland County (3) Nonattainment (3) Moderate.2\nSagadahoc County (3) Nonattainment (3) Moderate.2\nYork County (3) Nonattainment (3) Moderate.2\nSomerset County Area:\nSomerset County (part) Unclassifiable/Attainment\nAQCR 108 Aroostook Intrastate Unclassifiable/Attainment\nAroostook County (part) see 40 CFR 81.179\nAQCR 109 Down East Intrastate Unclassifiable/Attainment\nPenobscot County (part), as described under 40 CFR 81.181\nPiscataquis County (part) see 40 CFR 81.181\nWashington County\nAQCR 111 Northwest Maine Intrastate (Remainder of) Unclassifiable/Attainment\nsee 40 CFR 81.182\nAroostook County\nFranklin County (part)\nOxford County (part)\nPenobscot County (part)\nPiscataquis County (part)\nSomerset County (part)\n1 This date is October 18, 2000, unless otherwise noted.\n2 Attainment date extended to November 15, 1997.\n3 This date is January 16, 2001.\n4 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Maine. Hancock and Waldo Counties are maintenance areas for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X.\nMaine—PM-10\nDesignated area Designation Classification\nDate Type Date Type\nAroostook County:\nCity of Presque Isle (part) 1 8/30/1995 Attainment\nThat area bounded by Allen Street from its intersection with Main Street east to Dudley Street, Dudley Street south to Cedar Street, Cedar Street west to Main Street, Main Street south to Kennedy Brook, Kennedy Brook northwest crossing Presque Isle Stream to Coburn Street, Coburn Street northwest to Mechanic Street, Mechanic Street west to Judd Street, Judd Street northeast to State Street, State Street northwest to School Street, School Street northeast to Park Street, Park Street east to Main Street\nRest of State 11/15/1990 Unclassifiable\n1 This definition of the nonattainment area redefines its borders from the entire City of Presque Isle to this area of 0.6 square miles which circumscribe the area of high emission densities and ambient PM10 levels. (60 FR 2885, January 12, 1995)\nMaine—1997 Annual PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nStatewide:\nAndroscoggin County Unclassifiable/Attainment.\nAroostook County Unclassifiable/Attainment.\nCumberland County Unclassifiable/Attainment.\nFranklin County Unclassifiable/Attainment.\nHancock County Unclassifiable/Attainment.\nKennebec County Unclassifiable/Attainment.\nKnox County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nOxford County Unclassifiable/Attainment.\nPenobscot County Unclassifiable/Attainment.\nPiscataquis County Unclassifiable/Attainment.\nSagadahoc County Unclassifiable/Attainment.\nSomerset County Unclassifiable/Attainment.\nWaldo County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nYork County Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is 90 days after January 5, 2005, unless otherwise noted.\nMaine—2012 Annual PM2.5 NAAQS\n[Primary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nStatewide:\nAndroscoggin County Unclassifiable/Attainment\nAroostook County Unclassifiable/Attainment\nCumberland County Unclassifiable/Attainment\nFranklin County Unclassifiable/Attainment\nHancock County Unclassifiable/Attainment\nKennebec County Unclassifiable/Attainment\nKnox County Unclassifiable/Attainment\nLincoln County Unclassifiable/Attainment\nOxford County Unclassifiable/Attainment\nPenobscot County Unclassifiable/Attainment\nPiscataquis County Unclassifiable/Attainment\nSagadahoc County Unclassifiable/Attainment\nSomerset County Unclassifiable/Attainment\nWaldo County Unclassifiable/Attainment\nWashington County Unclassifiable/Attainment\nYork County Unclassifiable/Attainment\n1 Includes areas of Indian country located in each county or area, except as otherwise specified.\n2 This date is April 15, 2015, unless otherwise noted.\nMaine—1997 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nStatewide:\nAndroscoggin County Unclassifiable/Attainment.\nAroostook County Unclassifiable/Attainment.\nCumberland County Unclassifiable/Attainment.\nFranklin County Unclassifiable/Attainment.\nHancock County Unclassifiable/Attainment.\nKennebec County Unclassifiable/Attainment.\nKnox County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nOxford County Unclassifiable/Attainment.\nPenobscot County Unclassifiable/Attainment.\nPiscataquis County Unclassifiable/Attainment.\nSagadahoc County Unclassifiable/Attainment.\nSomerset County Unclassifiable/Attainment.\nWaldo County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nYork County Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is 90 days after January 5, 2005, unless otherwise noted.\nMaine—2006 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nStatewide:\nAndroscoggin County Unclassifiable/Attainment.\nAroostook County Unclassifiable/Attainment.\nCumberland County Unclassifiable/Attainment.\nFranklin County Unclassifiable/Attainment.\nHancock County Unclassifiable/Attainment.\nKennebec County Unclassifiable/Attainment.\nKnox County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nOxford County Unclassifiable/Attainment.\nPenobscot County Unclassifiable/Attainment.\nPiscataquis County Unclassifiable/Attainment.\nSagadahoc County Unclassifiable/Attainment.\nSomerset County Unclassifiable/Attainment.\nWaldo County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nYork County Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is 30 days after November 13, 2009, unless otherwise noted.\nMaine—NO2 (1971 Annual Standard)\nDesignated area Does not meet primary standards Cannot be classified or better than national standards\nAQCR 110 X\nAQCR 107 X\nAQCR 109 X\nAQCR 108 X\nAQCR 111 X\nMaine—NO2 (2010 1-Hour Standard)\nDesignated area Designation a\nDate 1 Type\nState of Maine Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is 90 days after October 31, 2011, unless otherwise noted.\nMaine—1997 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation a Category/classification\nDate 1 Type Date 1 Type\nHancock, Knox, Lincoln and Waldo Cos., ME:\nHancock County (part) (includes only the following cities and towns): Bar Harbor, Blue Hill, Brooklin, Brooksville, Cranberry Isle, Deer Isle, Frenchboro, Gouldsboro, Hancock, Lamoine, Mount Desert, Sedgwick, Sorrento, Southwest Harbor, Stonington, Sullivan, Surry, Swans Island, Tremont, Trenton, and Winter Harbor January 10, 2007 Attainment\nKnox County (part) (includes only the following cities and towns): Camden, Criehaven, Cushing, Friendship, Isle au Haut, Matinicus Isle, Muscle Ridge Shoals, North Haven, Owls Head, Rockland, Rockport, St. George, South Thomaston, Thomaston, Vinalhaven, and Warren January 10, 2007 Attainment\nLincoln County (part) (includes only the following cities and towns): Alna, Boothbay, Boothbay Harbor, Breman, Bristol, Damariscotta, Dresden, Edgecomb, Monhegan, Newcastle, Nobleboro, South Bristol, Southport, Waldoboro, Westport, and Wiscasset January 10, 2007 Attainment\nWaldo County (part) (includes only the following town): Islesboro January 10, 2007 Attainment\nPortland, ME:\nAndroscoggin County (part) (includes only the following town): Durham January 10, 2007 Attainment\nCumberland County (part) (includes only the following cities and towns): Brunswick, Cape Elizabeth, Casco, Cumberland, Falmouth, Freeport, Frye Island, Gorham, Gray, Harpswell, Long Island, New Gloucester, North Yarmouth, Portland, Pownal, Raymond, Scarborough, South Portland, Standish, Westbrook, Windham, and Yarmouth January 10, 2007 Attainment\nSagadahoc County (includes all cities \u0026 towns) January 10, 2007 Attainment\nYork County (part) (includes only the following cities and towns): Alfred, Arundel, Berwick, Biddeford, Buxton, Dayton, Elliot, Hollis, Kennebunk, Kennebunkport, Kittery, Limington, Lyman, North Berwick, Ogunquit, Old Orchard Beach, Saco, Sanford, South Berwick, Wells, and York January 10, 2007 Attainment\nRest of State Unclassifiable Attainment\nAndroscoggin County (part) remainder\nAroostook County\nCumberland County (part) remainder\nFranklin County\nHancock County (part) remainder\nKennebec County\nKnox County (part) remainder\nLincoln County (part) remainder\nOxford County\nPenobscot County\nPiscataquis County\nSomerset County\nWaldo County (part) remainder\nWashington County\nYork County (part) remainder\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is June 15, 2004, unless otherwise noted.\nMaine—2008 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nStatewide: 2 Unclassifiable/Attainment\nAndroscoggin County\nAroostook County\nCumberland County\nFranklin County\nHancock County\nKennebec County\nKnox County\nLincoln County\nOxford County\nPenobscot County\nPiscataquis County\nSagadahoc County\nSomerset County\nWaldo County\nWashington County\nYork County\n1 This date is July 20, 2012, unless otherwise noted.\n2 Includes any Indian country in each county or area, unless otherwise specified.\nMaine—2015 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area 1 Designation Classification\nDate 2 Type Date Type\nStatewide Attainment/Unclassifiable\nAndroscoggin County\nAroostook County\nCumberland County\nFranklin County\nHancock County\nKennebec County\nKnox County\nLincoln County\nOxford County\nPenobscot County\nPiscataquis County\nSagadahoc County\nSomerset County\nWaldo County\nWashington County\nYork County\n1 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.\n2 This date is January 16, 2018, unless otherwise noted.\nMaine—2008 Lead NAAQS\nDesignated area Designation for the 2008 NAAQS a\nDate 1 Type\nWhole State Unclassifiable/Attainment.\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 December 31, 2011 unless otherwise noted.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 81—DESIGNATION OF AREAS FOR AIR QUALITY PLANNING PURPOSES","Subpart C—Section 107 Attainment Status Designations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"70bacfd935bb40091e3c149f1cceb831a3421f7ae2b36b29219f4e74654821bb","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-81.319","next":"us/40-cfr-81.321"},"notice":"GroundRules: Original legal text. Not legal advice."}