{"data":{"id":"us/40-cfr-81.335","jurisdiction":"us","citation":"40 CFR 81.335","heading":"North Dakota.","body":"North Dakota—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 standards\nMetropolitan Fargo-Moorhead (Minn), AQCR 130 X\nRest of State, AQCR 172 X\nNorth Dakota—2010 Sulfur Dioxide NAAQS\n[Primary]\nDesignated area 1 Designation\nDate 2 Type\nMcLean County/Eastern Mercer County, ND 9/12/2016 Attainment/Unclassifiable.\nMcLean County\nMercer County (part)\nArea east of CR-37/ND 31, east/north of ND 200 ALT, west of the eastern border of Mercer County/Missouri River, south of the Knife River National Historic Site.\nCentral Mercer County, ND 9/12/2016 Attainment/Unclassifiable.\nMercer County (part)\nArea west of ND 49/61st Ave SW, north of Co. Rd 15/17th St. SW, east of Co. Rd 13, south and east of the town Zap, south of 8th St. SW/ND 200\nRest of State: Attainment/Unclassifiable.\nAdams County\nBarnes County\nBenson County\nBillings County\nBottineau County\nBowman County\nBurke County\nBurleigh County\nCass County\nCavalier County\nDickey County\nDivide County\nDunn County\nEddy County\nEmmons County\nFoster County\nGolden Valley County\nGrand Forks County\nGrant County\nGriggs County\nHettinger County\nKidder County\nLaMoure County\nLogan County\nMcHenry County\nMcIntosh County\nMcKenzie County\nMercer County (part) (remainder)\nMorton County\nMountrail County\nNelson County\nOliver County\nPembina County\nPierce County\nRamsey County\nRansom County\nRenville County\nRichland County\nRolette County\nSargent County\nSheridan County\nSioux County\nSlope County\nStark County\nSteele County\nStutsman County\nTowner County\nTraill County\nWalsh County\nWard County\nWells County\nWilliams County 4/30/2021\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.\nNorth Dakota—Carbon Monoxide\nDesignated Area Designation Classification\nDate 1 Type Date 1 Type\nAQCR 130 Metropolitan Fargo-Moorhead Intrastate\nCass County Unclassifiable/Attainment\nRest of State Unclassifiable/Attainment\nAdams County\nBarnes County\nBenson County\nBillings County\nBottineau County\nBowman County\nBurke County\nBurleigh County\nCavalier County\nDickey County\nDivide County\nDunn County\nEddy County\nEmmons County\nFoster County\nGolden Valley County\nGrand Forks County\nGrant County\nGriggs County\nHettinger County\nKidder County\nLa Moure County\nLogan County\nMcHenry County\nMcIntosh County\nMcKenzie County\nMcLean County\nMercer County\nMorton County\nMountrail County\nNelson County\nOliver County\nPembina County\nPierce County\nRamsey County\nRansom County\nRenville County\nRichland County\nRolette County\nSargent County\nSheridan County\nSioux County\nSlope County\nStark County\nSteele County\nStutsman County\nTowner County\nTraill County\nWalsh County\nWard County\nWells County\nWilliams County\n1 This date is November 15, 1990, unless otherwise noted.\nNorth Dakota—Ozone (1-Hour Standard)2\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nAQCR 130 Metropolitan Fargo-Moorhead Interstate.\nCass County Unclassifiable/Attainment\nRest of State, AQCR 172 Unclassifiable/Attainment\nAdams County\nBarnes County\nBenson County\nBillings County\nBottineau County\nBowman County\nBurke County\nBurleigh County\nCavalier County\nDickey County\nDivide County\nDunn County\nEddy County\nEmmons County\nFoster County\nGolden Valley County\nGrand Forks County\nGrant County\nGriggs County\nHettinger County\nKidder County\nLa Moure County\nLogan County\nMcHenry County\nMcIntosh County\nMcKenzie County\nMcLean County\nMercer County\nMorton County\nMountrail County\nNelson County\nOliver County\nPembina County\nPierce County\nRamsey County\nRansom County\nRenville County\nRichland County\nRolette County\nSargent County\nSheridan County\nSioux County\nSlope County\nStark County\nSteele County\nStutsman County\nTowner County\nTraill County\nWalsh County\nWard County\nWells County\nWilliams County\n1 This date is October 18, 2000, unless otherwise noted.\n2 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in North Dakota.\nNorth Dakota—PM-10\nDesignated Area Designation Classification\nDate Type Date Type\nMetropolitan Fargo-Moorhead (Minn.), AQCR 130 11/15/1990 Unclassifiable\nRest of State, AQCR 172 1 11/15/1990 Unclassifiable\n1 Denotes a single area designation for PSD baseline area purposes.\nNorth Dakota—1997 Annual PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 130 Metropolitan Fargo-Moorhead Interstate:\nCass County Unclassifiable/Attainment.\nRest of State, AQCR 172:\nAdams County Unclassifiable/Attainment.\nBarnes County Unclassifiable/Attainment.\nBenson County Unclassifiable/Attainment.\nBillings County Unclassifiable/Attainment.\nBottineau County Unclassifiable/Attainment.\nBowman County Unclassifiable/Attainment.\nBurke County Unclassifiable/Attainment.\nBurleigh County Unclassifiable/Attainment.\nCavalier County Unclassifiable/Attainment.\nDickey County Unclassifiable/Attainment.\nDivide County Unclassifiable/Attainment.\nDunn County Unclassifiable/Attainment.\nEddy County Unclassifiable/Attainment.\nEmmons County Unclassifiable/Attainment.\nFoster County Unclassifiable/Attainment.\nGolden Valley County Unclassifiable/Attainment.\nGrand Forks County Unclassifiable/Attainment.\nGrant County Unclassifiable/Attainment.\nGriggs County Unclassifiable/Attainment.\nHettinger County Unclassifiable/Attainment.\nKidder County Unclassifiable/Attainment.\nLaMoure County Unclassifiable/Attainment.\nLogan County Unclassifiable/Attainment.\nMcHenry County Unclassifiable/Attainment.\nMcIntosh County Unclassifiable/Attainment.\nMcKenzie County Unclassifiable/Attainment.\nMcLean County Unclassifiable/Attainment.\nMercer County Unclassifiable/Attainment.\nMorton County Unclassifiable/Attainment.\nMountrail County Unclassifiable/Attainment.\nNelson County Unclassifiable/Attainment.\nOliver County Unclassifiable/Attainment.\nPembina County Unclassifiable/Attainment.\nPierce County Unclassifiable/Attainment.\nRamsey County Unclassifiable/Attainment.\nRansom County Unclassifiable/Attainment.\nRenville County Unclassifiable/Attainment.\nRichland County Unclassifiable/Attainment.\nRolette County Unclassifiable/Attainment.\nSargent County Unclassifiable/Attainment.\nSheridan County Unclassifiable/Attainment.\nSioux County Unclassifiable/Attainment.\nSlope County Unclassifiable/Attainment.\nStark County Unclassifiable/Attainment.\nSteele County Unclassifiable/Attainment.\nStutsman County Unclassifiable/Attainment.\nTowner County Unclassifiable/Attainment.\nTraill County Unclassifiable/Attainment.\nWalsh County Unclassifiable/Attainment.\nWard County Unclassifiable/Attainment.\nWells County Unclassifiable/Attainment.\nWilliams 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.\nNorth Dakota—2012 Annual PM2.5 NAAQS\n[Primary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nAQCR 130 Metropolitan Fargo-Moorhead Interstate:\nCass County Unclassifiable/Attainment\nRest of State, AQCR 172:\nAdams County Unclassifiable/Attainment\nBarnes County Unclassifiable/Attainment\nBenson County Unclassifiable/Attainment\nBillings County Unclassifiable/Attainment\nBottineau County Unclassifiable/Attainment\nBowman County Unclassifiable/Attainment\nBurke County Unclassifiable/Attainment\nBurleigh County Unclassifiable/Attainment\nCavalier County Unclassifiable/Attainment\nDickey County Unclassifiable/Attainment\nDivide County Unclassifiable/Attainment\nDunn County Unclassifiable/Attainment\nEddy County Unclassifiable/Attainment\nEmmons County Unclassifiable/Attainment\nFoster County Unclassifiable/Attainment\nGolden Valley County Unclassifiable/Attainment\nGrand Forks County Unclassifiable/Attainment\nGrant County Unclassifiable/Attainment\nGriggs County Unclassifiable/Attainment\nHettinger County Unclassifiable/Attainment\nKidder County Unclassifiable/Attainment\nLaMoure County Unclassifiable/Attainment\nLogan County Unclassifiable/Attainment\nMcHenry County Unclassifiable/Attainment\nMcIntosh County Unclassifiable/Attainment\nMcKenzie County Unclassifiable/Attainment\nMcLean County Unclassifiable/Attainment\nMercer County Unclassifiable/Attainment\nMorton County Unclassifiable/Attainment\nMountrail County Unclassifiable/Attainment\nNelson County Unclassifiable/Attainment\nOliver County Unclassifiable/Attainment\nPembina County Unclassifiable/Attainment\nPierce County Unclassifiable/Attainment\nRamsey County Unclassifiable/Attainment\nRansom County Unclassifiable/Attainment\nRenville County Unclassifiable/Attainment\nRichland County Unclassifiable/Attainment\nRolette County Unclassifiable/Attainment\nSargent County Unclassifiable/Attainment\nSheridan County Unclassifiable/Attainment\nSioux County Unclassifiable/Attainment\nSlope County Unclassifiable/Attainment\nStark County Unclassifiable/Attainment\nSteele County Unclassifiable/Attainment\nStutsman County Unclassifiable/Attainment\nTowner County Unclassifiable/Attainment\nTraill County Unclassifiable/Attainment\nWalsh County Unclassifiable/Attainment\nWard County Unclassifiable/Attainment\nWells County Unclassifiable/Attainment\nWilliams 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.\nNorth Dakota—1997 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 130 Metropolitan Fargo-Moorhead Interstate:\nCass County Unclassifiable/Attainment.\nRest of State, AQCR 172:\nAdams County Unclassifiable/Attainment.\nBarnes County Unclassifiable/Attainment.\nBenson County Unclassifiable/Attainment.\nBillings County Unclassifiable/Attainment.\nBottineau County Unclassifiable/Attainment.\nBowman County Unclassifiable/Attainment.\nBurke County Unclassifiable/Attainment.\nBurleigh County Unclassifiable/Attainment.\nCavalier County Unclassifiable/Attainment.\nDickey County Unclassifiable/Attainment.\nDivide County Unclassifiable/Attainment.\nDunn County Unclassifiable/Attainment.\nEddy County Unclassifiable/Attainment.\nEmmons County Unclassifiable/Attainment.\nFoster County Unclassifiable/Attainment.\nGolden Valley County Unclassifiable/Attainment.\nGrand Forks County Unclassifiable/Attainment.\nGrant County Unclassifiable/Attainment.\nGriggs County Unclassifiable/Attainment.\nHettinger County Unclassifiable/Attainment.\nKidder County Unclassifiable/Attainment.\nLaMoure County Unclassifiable/Attainment.\nLogan County Unclassifiable/Attainment.\nMcHenry County Unclassifiable/Attainment.\nMcIntosh County Unclassifiable/Attainment.\nMcKenzie County Unclassifiable/Attainment.\nMcLean County Unclassifiable/Attainment.\nMercer County Unclassifiable/Attainment.\nMorton County Unclassifiable/Attainment.\nMountrail County Unclassifiable/Attainment.\nNelson County Unclassifiable/Attainment.\nOliver County Unclassifiable/Attainment.\nPembina County Unclassifiable/Attainment.\nPierce County Unclassifiable/Attainment.\nRamsey County Unclassifiable/Attainment.\nRansom County Unclassifiable/Attainment.\nRenville County Unclassifiable/Attainment.\nRichland County Unclassifiable/Attainment.\nRolette County Unclassifiable/Attainment.\nSargent County Unclassifiable/Attainment.\nSheridan County Unclassifiable/Attainment.\nSioux County Unclassifiable/Attainment.\nSlope County Unclassifiable/Attainment.\nStark County Unclassifiable/Attainment.\nSteele County Unclassifiable/Attainment.\nStutsman County Unclassifiable/Attainment.\nTowner County Unclassifiable/Attainment.\nTraill County Unclassifiable/Attainment.\nWalsh County Unclassifiable/Attainment.\nWard County Unclassifiable/Attainment.\nWells County Unclassifiable/Attainment.\nWilliams 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.\nNorth Dakota—2006 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 130 Metropolitan Fargo-Moorhead Interstate:\nCass County Unclassifiable/Attainment.\nRest of State, AQCR 172:\nAdams County Unclassifiable/Attainment.\nBarnes County Unclassifiable/Attainment.\nBenson County Unclassifiable/Attainment.\nBillings County Unclassifiable/Attainment.\nBottineau County Unclassifiable/Attainment.\nBowman County Unclassifiable/Attainment.\nBurke County Unclassifiable/Attainment.\nBurleigh County Unclassifiable/Attainment.\nCavalier County Unclassifiable/Attainment.\nDickey County Unclassifiable/Attainment.\nDivide County Unclassifiable/Attainment.\nDunn County Unclassifiable/Attainment.\nEddy County Unclassifiable/Attainment.\nEmmons County Unclassifiable/Attainment.\nFoster County Unclassifiable/Attainment.\nGolden Valley County Unclassifiable/Attainment.\nGrand Forks County Unclassifiable/Attainment.\nGrant County Unclassifiable/Attainment.\nGriggs County Unclassifiable/Attainment.\nHettinger County Unclassifiable/Attainment.\nKidder County Unclassifiable/Attainment.\nLaMoure County Unclassifiable/Attainment.\nLogan County Unclassifiable/Attainment.\nMcHenry County Unclassifiable/Attainment.\nMcIntosh County Unclassifiable/Attainment.\nMcKenzie County Unclassifiable/Attainment.\nMcLean County Unclassifiable/Attainment.\nMercer County Unclassifiable/Attainment.\nMorton County Unclassifiable/Attainment.\nMountrail County Unclassifiable/Attainment.\nNelson County Unclassifiable/Attainment.\nOliver County Unclassifiable/Attainment.\nPembina County Unclassifiable/Attainment.\nPierce County Unclassifiable/Attainment.\nRamsey County Unclassifiable/Attainment.\nRansom County Unclassifiable/Attainment.\nRenville County Unclassifiable/Attainment.\nRichland County Unclassifiable/Attainment.\nRolette County Unclassifiable/Attainment.\nSargent County Unclassifiable/Attainment.\nSheridan County Unclassifiable/Attainment.\nSioux County Unclassifiable/Attainment.\nSlope County Unclassifiable/Attainment.\nStark County Unclassifiable/Attainment.\nSteele County Unclassifiable/Attainment.\nStutsman County Unclassifiable/Attainment.\nTowner County Unclassifiable/Attainment.\nTraill County Unclassifiable/Attainment.\nWalsh County Unclassifiable/Attainment.\nWard County Unclassifiable/Attainment.\nWells County Unclassifiable/Attainment.\nWilliams 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.\nNorth Dakota—NO2 (1971 Annual Standard)\nDesignated area Does not meet primary standards Cannot be classified or better than national standards\nMetropolitan Fargo-Moorhead (Minn), AQCR 130 X\nRest of State, AQCR 172 X\nNorth Dakota—NO2 (2010 1-Hour Standard)\nDesignated area Designation a\nDate 1 Type\nState of North Dakota 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.\nNorth Dakota—1997 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation a Category/classification\nDate 1 Type Date 1 Type\nAQCR 130 Metropolitan Fargo-Moorhead Interstate:\nCass County Unclassifiable/Attainment\nRest of State, AQCR 172 Unclassifiable/Attainment\nAdams County\nBarnes County\nBenson County\nBillings County\nBottineau County\nBowman County\nBurke County\nBurleigh County\nCavalier County\nDickey County\nDivide County\nDunn County\nEddy County\nEmmons County\nFoster County\nGolden Valley County\nGrand Forks County\nGrant County\nGriggs County\nHettinger County\nKidder County\nLaMoure County\nLogan County\nMcHenry County\nMcIntosh County\nMcKenzie County\nMcLean County\nMercer County\nMorton County\nMountrail County\nNelson County\nOliver County\nPembina County\nPierce County\nRamsey County\nRansom County\nRenville County\nRichland County\nRolette County\nSargent County\nSheridan County\nSioux County\nSlope County\nStark County\nSteele County\nStutsman County\nTowner County\nTraill County\nWalsh County\nWard County\nWells County\nWilliams County\na Includes Indian Country located in each county or area, except as otherwise specified.\n1 This date is June 15, 2004, unless otherwise noted.\nNorth Dakota—2008 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation Classification\nDate 1 Type Date 1 Type\nStatewide and Areas of Indian Country Unclassifiable/Attainment\n1 This date is July 20, 2012, unless otherwise noted.\nNorth Dakota—2015 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area 1 Designation Classification\nDate 2 Type Date Type\nStatewide Attainment/Unclassifiable\nAdams County\nBarnes County\nBenson County\nBillings County\nBottineau County\nBowman County\nBurke County\nBurleigh County\nCass County\nCavalier County\nDickey County\nDivide County\nDunn County\nEddy County\nEmmons County\nFoster County\nGolden Valley County\nGrand Forks County\nGrant County\nGriggs County\nHettinger County\nKidder County\nLaMoure County\nLogan County\nMcHenry County\nMcIntosh County\nMcKenzie County\nMcLean County\nMercer County\nMorton County\nMountrail County\nNelson County\nOliver County\nPembina County\nPierce County\nRamsey County\nRansom County\nRenville County\nRichland County\nRolette County\nSargent County\nSheridan County\nSioux County\nSlope County\nStark County\nSteele County\nStutsman County\nTowner County\nTraill County\nWalsh County\nWard County\nWells County\nWilliams 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.\nNorth Dakota—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":"fb0e8e5fd6dea9f4b21177dae19a7e7c3717e620ff7c3f677d4659f386054ab2","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-81.334","next":"us/40-cfr-81.336"},"notice":"GroundRules: Original legal text. Not legal advice."}