{"data":{"id":"us/40-cfr-81.313","jurisdiction":"us","citation":"40 CFR 81.313","heading":"Idaho.","body":"Idaho—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\nEastern Idaho Intrastate AQCR 61:\nPocatello X\nRemainder of AQCR 61 X\nEastern Washington-Northern Idaho Interstate AQCR 62 (Idaho Portion):\nSilver Valley (Shoshone County) X\nRemainder of AQCR 62 (Idaho Portion) X\nIdaho Intrastate AQCR 63 X\nMetropolitan Boise Intrastate AQCR 64 X\nIdaho—2010 Sulfur Dioxide NAAQS\n[Primary]\nDesignated area 1 Designation\nDate 2 Type\nEntire State Attainment/Unclassifiable.\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.\nIdaho—Carbon Monoxide\nDesignated Area Designation Classification\nDate 1 Type Date 1 Type\nBoise—Northern Ada County Area:\nThe Boise-Ada County nonattainment area is described as follows: Beginning at a point in the center of the channel of the Boise River which the section line between sections fifteen (15) and sixteen (16), Township three (3) north, range four (4) east crosses said river; thence down the center of the channel of the Boise River to a point opposite the mouth of Mores Creek. Thence in a straight line north forty four (44) degrees and 36 minutes west until the said line intersects the north line of Township five (5) north (12 Ter. Ses. 67); thence west to the northwest corner of Township five (5) north, range one (1) west; thence southerly to the northwest corner of Township three (3) north, range one (1) west; thence east to the northwest corner of Section four (4) township three (3) north, range one (1) west; thence south to the southeast corner of section thirty-two (32), township two (2) north, range one (1) west; thence, west to the northwest corner township one (1) north, range one (1) west; thence southerly to the southwest corner of township one (1) north, range one (1) west; thence east to the southwest corner of section thirty-three (33), township one (1) north, range four (4) east; thence in a northerly direction along the north and south centerline of township one (1), two (2) and three (3) north, range four (4) east, Boise Meridian, to a point in the center of the channel of the Boise River where the section line between section fifteen (15) and sixteen (16) township three (3) north, range four (4) east, Boise Meridian crosses said Boise River, the point of beginning 12/27/2002 Attainment.\nAQCR 61 Eastern Idaho Intrastate Unclassifiable/Attainment\nBannock County\nBear Lake County\nBingham County\nBonneville County\nButte County\nCaribou County\nClark County\nFranklin County\nFremont County\nJefferson County\nMadison County\nOneida County\nPower County\nTeton County\nAQCR 62 Eastern Washington N Idaho Interstate Unclassifiable/Attainment\nBenewah County\nKootenai County\nLatah County\nNez Perce County\nShoshone County\nAQCR 63 Idaho Intrastate Unclassifiable/Attainment\nAdams County\nBlaine County\nBoise County\nBonner County\nBoundary County\nCamas County\nCassia County\nClearwater County\nCuster County\nElmore County\nGem County\nGooding County\nIdaho County\nJerome County\nLemhi County\nLewis County\nLincoln County\nMinidoka County\nOwyhee County\nPayette County\nTwin Falls County\nValley County\nWashington County\nAQCR 64 Metropolitan Boise Intrastate (Remainder of) Unclassifiable/Attainment\nAda County (part)\nRemainder of County\nCanyon County\n1 This date is November 15, 1990, unless otherwise noted.\nIdaho—Ozone (1-Hour Standard)2\nDesignated area Designation Classification\nDate1 Type Date1 Type\nAQCR 61 Eastern Idaho Intrastate Unclassifiable/Attainment\nBannock County\nBear Lake County\nBingham County\nBonneville County\nButte County\nCaribou County\nClark County\nFranklin County\nFremont County\nJefferson County\nMadison County\nOneida County\nPower County\nTeton County\nAQCR 62 E Washington-N Idaho Interstate Unclassifiable/Attainment\nBenewah County\nKootenai County\nLatah County\nNez Perce County\nShoshone County\nAQCR 63 Idaho Intrastate Unclassifiable/Attainment\nAdams County\nBlaine County\nBoise County\nBonner County\nBoundary County\nCamas County\nCassia County\nClearwater County\nCuster County\nElmore County\nGem County\nGooding County\nIdaho County\nJerome County\nLemhi County\nLewis County\nLincoln County\nMinidoka County\nOwyhee County\nPayette County\nTwin Falls County\nValley County\nWashington County\nAQCR 64 Metropolitan Boise Interstate Unclassifiable/Attainment\nAda County\nCanyon 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 Idaho.\nIdaho PM-10\nDesignated area Designation Classification\nDate Type Date Type\nEastern Idaho IntraState AQCR 61: 08/14/2006 Attainment.\nPower-Bannock Counties, part of: (Pocatello)\nState Lands-Portneuf Valley Area:\nT.5S, R.34E Sections 25-36\nT.5S, R.35E Section 31\nT.6S, R.34E Sections 1-36\nT.6S, R.35E Sections 5-9, 16-21, 28-33, plus the west 1⁄2 of sections 10, 15, 22, 27, 34\nT.7S, R.34E Sections 1-4, 10-14, and 24\nT.7S, R.35E Sections 4-9, 16-21, 28-33, plus the west 1⁄2 of sections 3, 10, 15, 22, 27, 34\nT.8S, R.35E Section 4 plus the west 1⁄2 of section 3\nPower-Bannock Counties, part of: (Pocatello) 11/15/1990 Nonattainment 11/15/1990 Moderate\nFort Hall Indian Reservation:\nT.5S, R.34E Sections 15-23\nT.5S, R.33E Sections 13-36\nT.6S, R.33E Sections 1-36\nT.7S, R.33E Sections 4, 5, 6\nT.7S, R.34E Section 8\nPocatello: 336 square mile area from Schiller at the northwest to Inkom at southeast, excluding the Portneuf Valley and Fort Hall nonattainment areas 11/15/1990 Unclassifiable\nSoda Springs: 96 square mile area encompassing Soda Springs, Conda and the industrial area in between 11/15/1990 Unclassifiable\nRemainder of AQCR 61 11/15/1990 Unclassifiable\nEastern Washington-Northern Idaho Interstate AQCR 62 (Idaho portion):\nShoshone County: Pinehurst Expansion Area Northwest quarter of the Northwest quarter, Section 8, Township 48 North, Range 2 East; Southwest quarter of the Northwest quarter, Section 8, Township 48, North, Range 2 East; Northwest quarter of the Southwest quarter, Section 8, Township 48 North, Range 2 East; Southwest quarter, Section 8, Township 48 North, Range 2 East; Southwest quarter of the Southwest quarter, Section 48 North, Range 2 East, Boise Base (known as “Pinehurst expansion area”) 10/11/2018 Attainment\nCity of Pinehurst 10/11/2018 Attainment\nIdaho Intrastate AQCR 63:\nBonner County: Sandpoint Area: Section 1-3, 9-12, 15, 16, 21, 22, 27, 28 of range 2 west and Township 57 north; and the western 3⁄4 of Sections 14, 23 and 26 of the same Township and range coordinates 06/3/2013 Attainment\nRemainder of AQCR 63 11/15/1990 Unclassifiable\nMetropolitan Boise the Intrastate AQCR 64:\nAda County: Boise—Northern Boundary—Beginning at a point in the center of the channel of the Boise River, where the line between sections 15 and 16 in Township 3 north (T3N), range 4 east (R4E), crosses said Boise river; thence, west down the center of the channel of the Boise River to a point opposite the mouth of More's Creek; thence, in a straight line north 44 degrees and 38 minutes west until the said line intersects the north line T5N (12 Ter. Ses. 67); thence west to the northwest corner T5N, R1W Western Boundary—Thence, south to the northwest corner of T3N, R1W; thence east to the northwest corner of section 4 of T3N, R1W; thence south to the southeast corner of section 32 of T2N, R1W; thence, west to the northwest corner of T1N, R1W; thence, south to the southwest corner of section 32 of T2N, R1W; thence, west to the northwest corner of T1N, R1W; thence south to the southwest corner of T1N, R1W Southern Boundary—Thence, east to the southwest corner of section 33 of T1N, R4E Eastern Boundary—Thence, north along the north and south center line of Townships T1N, R4E, T2N, R4E, and T3N, R4E, Boise Meridian to the beginning point in the center of the channel of the Boise River. 12/26/2003 Attainment\nRemainder of AQCR 64 11/15/1990 Unclassifiable.\nIdaho—1997 Annual PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nAQCR 61 Eastern Idaho Intrastate:\nBannock County Unclassifiable/Attainment\nBear Lake County Unclassifiable/Attainment\nBingham County Unclassifiable/Attainment\nBonneville County Unclassifiable/Attainment\nButte County Unclassifiable/Attainment\nCaribou County Unclassifiable/Attainment\nClark County Unclassifiable/Attainment\nFranklin County Unclassifiable/Attainment\nFremont County Unclassifiable/Attainment\nJefferson County Unclassifiable/Attainment\nMadison County Unclassifiable/Attainment\nOneida County Unclassifiable/Attainment\nPower County Unclassifiable/Attainment\nTeton County Unclassifiable/Attainment\nAQCR 62 E Washington-N Idaho Interstate:\nBenewah County Unclassifiable/Attainment\nKootenai County Unclassifiable/Attainment\nLatah County Unclassifiable/Attainment\nNez Perce County Unclassifiable/Attainment\nShoshone County Unclassifiable/Attainment\nAQCR 63 Idaho Intrastate:\nAdams County Unclassifiable/Attainment\nBlaine County Unclassifiable/Attainment\nBoise County Unclassifiable/Attainment\nBonner County Unclassifiable/Attainment\nBoundary County Unclassifiable/Attainment\nCamas County Unclassifiable/Attainment\nCassia County Unclassifiable/Attainment\nClearwater County Unclassifiable/Attainment\nCuster County Unclassifiable/Attainment\nElmore County Unclassifiable/Attainment\nGem County Unclassifiable/Attainment\nGooding County Unclassifiable/Attainment\nIdaho County Unclassifiable/Attainment\nJerome County Unclassifiable/Attainment\nLemhi County Unclassifiable/Attainment\nLewis County Unclassifiable/Attainment\nLincoln County Unclassifiable/Attainment\nMinidoka County Unclassifiable/Attainment\nOwyhee County Unclassifiable/Attainment\nPayette County Unclassifiable/Attainment\nTwin Falls County Unclassifiable/Attainment\nValley County Unclassifiable/Attainment\nWashington County Unclassifiable/Attainment\nAQCR 64 Metropolitan Boise Interstate:\nAda County Unclassifiable/Attainment\nCanyon 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.\nIdaho—2012 Annual PM2.5 NAAQS\n[Primary]\nDesignated area 1 Designation Classification\nDate 2 Type Date 2 Type\nWest Silver Valley, ID:\nShoshone County (part) 11/16/2021 Attainment\nThat portion of Shoshone County, which is described as follows: T50N, R02E, Sections 14, 15, 22-27, 29-36; T49N, R01E, Sections 2, 11-14, 23-26, 35, 36 and Sections 10,15, 22, 27, 34 east of Kootenai County boundary; T49N, R02E, Sections 1-36; T49N, R03E, Sections 7, 13-36; T49N, R04E, Sections 19, 30, 31; T48N, R01E, Sections 1, 2, 11-14, 22-27, 34-36 and Sections 3, 10, 15 east of Kootenai County boundary; T48N, R02E, Sections 1-36; T48N, R03E, Sections 2-10, 16-20, 30, 31; T48N, R03E, Section 1, NWNW, SWNW, NWSW, SWSW; T48N, R03E, Section 11, NW1⁄4, NE1⁄4, NWSW, NESW, NWSE, NESE; T48N, R03E, Section 12, NWNW, SWNW, NWSW; T47N, R01E, Sections 1-3, 10-15, 22-27; T47N, R02E, Sections 1-23, 28-30; T47N, R03E, Sections 5-8, 17, and 18\nAQCR 61 Eastern Idaho Intrastate:\nBannock County Unclassifiable/Attainment\nBear Lake County Unclassifiable/Attainment\nBingham County Unclassifiable/Attainment\nBonneville County Unclassifiable/Attainment\nButte County Unclassifiable/Attainment\nCaribou County Unclassifiable/Attainment\nClark County Unclassifiable/Attainment\nFranklin County Unclassifiable/Attainment\nFremont County Unclassifiable/Attainment\nJefferson County Unclassifiable/Attainment\nMadison County Unclassifiable/Attainment\nOneida County Unclassifiable/Attainment\nPower County Unclassifiable/Attainment\nTeton County Unclassifiable/Attainment\nAQCR 62 E Washington-N Idaho Interstate:\nBenewah County Unclassifiable/Attainment\nKootenai County Unclassifiable/Attainment\nLatah County Unclassifiable/Attainment\nNez Perce County Unclassifiable/Attainment\nShoshone County (remainder) Unclassifiable/Attainment\nAQCR 63 Idaho Intrastate:\nAdams County Unclassifiable/Attainment\nBlaine County Unclassifiable/Attainment\nBoise County Unclassifiable/Attainment\nBonner County Unclassifiable/Attainment\nBoundary County Unclassifiable/Attainment\nCamas County Unclassifiable/Attainment\nCassia County Unclassifiable/Attainment\nClearwater County Unclassifiable/Attainment\nCuster County Unclassifiable/Attainment\nElmore County Unclassifiable/Attainment\nGem County Unclassifiable/Attainment\nGooding County Unclassifiable/Attainment\nIdaho County Unclassifiable/Attainment\nJerome County Unclassifiable/Attainment\nLemhi County Unclassifiable/Attainment\nLewis County Unclassifiable/Attainment\nLincoln County Unclassifiable/Attainment\nMinidoka County Unclassifiable/Attainment\nOwyhee County Unclassifiable/Attainment\nPayette County Unclassifiable/Attainment\nTwin Falls County Unclassifiable/Attainment\nValley County Unclassifiable/Attainment\nWashington County Unclassifiable/Attainment\nAQCR 64 Metropolitan Boise Interstate:\nAda County Unclassifiable/Attainment\nCanyon 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.\nIdaho—1997 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date Type\nLogan, UT-ID:\nFranklin County (part) Unclassifiable/Attainment.\nBegin in the bottom left corner (southwest) of the nonattainment area boundary, southwest corner of the PLSS-Boise Meridian, Township 16 South, Range 37 East, Section 25. The boundary then proceeds north to the northwest corner of Township 15 South, Range 37 East, Section 25; then the boundary proceeds east to the southeast corner of Township 15 South, Range 38 East, Section 19; then north to the Franklin County boundary at the northwest corner of Township 13 South, Range 38 East, Section 20. From this point the boundary proceeds east 3.5 sections along the northern border of the county boundary where it then turns south 2 sections, and then proceeds east 5 more sections, and then north 2 sections more. At this point, the boundary leaves the county boundary and proceeds east at the southeast corner of Township 13 South, Range 39 East, Section 14; then the boundary heads north 2 sections to northwest corner of Township 13 South, Range 39 East, Section 12; then the boundary proceeds east 2 sections to the northeast corner of Township 13 South, Range 40 East, Section 7. The boundary then proceeds south 2 sections to the northwest corner of Township 13 South, Range 40 East, Section 20; the boundary then proceeds east 6 sections to the northeast corner of Township 13 South, Range 41 East, Section 19. The boundary then proceeds south 20 sections to the southeast corner of Township 16 South, Range 41 East, Section 30. Finally, the boundary is completed as it proceeds west 20 sections along the southern Idaho state boundary to the southwest corner of the Township 16 South, Range 37 East, Section 25.\nRest of State: AQCR 61 Eastern Idaho Intrastate:\nBannock County Unclassifiable/Attainment.\nBear Lake County Unclassifiable/Attainment.\nBingham County Unclassifiable/Attainment.\nBonneville County Unclassifiable/Attainment.\nButte County Unclassifiable/Attainment.\nCaribou County Unclassifiable/Attainment.\nClark County Unclassifiable/Attainment.\nFranklin County (remainder) Unclassifiable/Attainment.\nFremont County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nMadison County Unclassifiable/Attainment.\nOneida County Unclassifiable/Attainment.\nPower County Unclassifiable/Attainment.\nTeton County Unclassifiable/Attainment.\nAQCR 62 E Washington-N Idaho Interstate:\nBenewah County Unclassifiable/Attainment.\nKootenai County Unclassifiable/Attainment.\nLatah County Unclassifiable/Attainment.\nNez Perce County Unclassifiable/Attainment.\nShoshone County Unclassifiable/Attainment.\nAQCR 63 Idaho Intrastate:\nAdams County Unclassifiable/Attainment.\nBlaine County Unclassifiable/Attainment.\nBoise County Unclassifiable/Attainment.\nBonner County Unclassifiable/Attainment.\nBoundary County Unclassifiable/Attainment.\nCamas County Unclassifiable/Attainment.\nCassia County Unclassifiable/Attainment.\nClearwater County Unclassifiable/Attainment.\nCuster County Unclassifiable/Attainment.\nElmore County Unclassifiable/Attainment.\nGem County Unclassifiable/Attainment.\nGooding County Unclassifiable/Attainment.\nIdaho County Unclassifiable/Attainment.\nJerome County Unclassifiable/Attainment.\nLemhi County Unclassifiable/Attainment.\nLewis County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nMinidoka County Unclassifiable/Attainment.\nOwyhee County Unclassifiable/Attainment.\nPayette County Unclassifiable/Attainment.\nTwin Falls County Unclassifiable/Attainment.\nValley County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nAQCR 64 Metropolitan Boise Interstate:\nAda County Unclassifiable/Attainment.\nCanyon 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.\nIdaho—2006 24-Hour PM2.5 NAAQS\n[Primary and Secondary]\nDesignated area Designation a Classification\nDate 1 Type Date 2 Type\nLogan, UT-ID:\nFranklin County (part) 5/21/2021 Attainment\nBegin in the bottom left corner (southwest) of the nonattainment area boundary, southwest corner of the PLSS-Boise Meridian, Township 16 South, Range 37 East, Section 25. The boundary then proceeds north to the northwest corner of Township 15 South, Range 37 East, Section 25; then the boundary proceeds east to the southeast corner of Township 15 South, Range 38 East, Section 19; then north to the Franklin County boundary at the northwest corner of Township 13 South, Range 38 East, Section 20. From this point the boundary proceeds east 3.5 sections along the northern border of the county boundary where it then turns south 2 sections, and then proceeds east 5 more sections, and then north 2 sections more. At this point, the boundary leaves the county boundary and proceeds east at the southeast corner of Township 13 South, Range 39 East, Section 14; then the boundary heads north 2 sections to northwest corner of Township 13 South, Range 39 east, Section 12; then the boundary proceeds east 2 sections to the northeast corner of Township 13 South, Range 40 East, Section 7. The boundary then proceeds south 2 sections to the northwest corner of Township 13 South, Range 40 East, Section 20; the boundary then proceeds east 6 sections to the northeast corner of Township 13 South, Range 41 East, Section 19. The boundary then proceeds south 20 sections to the southeast corner of Township 16 South, Range 41 East, Section 30. Finally, the boundary is completed as it proceeds west 20 sections along the southern Idaho state boundary to the southwest corner of the Township 16 South, Range 37 East, Section 25\nRest of State: AQCR 61 Eastern Idaho Intrastate:\nBannock County Unclassifiable/Attainment.\nBear Lake County Unclassifiable/Attainment.\nBingham County Unclassifiable/Attainment.\nBonneville County Unclassifiable/Attainment.\nButte County Unclassifiable/Attainment.\nCaribou County Unclassifiable/Attainment.\nClark County Unclassifiable/Attainment.\nFranklin County (remainder) Unclassifiable/Attainment.\nFremont County Unclassifiable/Attainment.\nJefferson County Unclassifiable/Attainment.\nMadison County Unclassifiable/Attainment.\nOneida County Unclassifiable/Attainment.\nPower County Unclassifiable/Attainment.\nTeton County Unclassifiable/Attainment.\nAQCR 62 E Washington-N Idaho Interstate:\nBenewah County Unclassifiable/Attainment.\nKootenai County Unclassifiable/Attainment.\nLatah County Unclassifiable/Attainment.\nNez Perce County Unclassifiable/Attainment.\nShoshone County Unclassifiable/Attainment.\nAQCR 63 Idaho Intrastate:\nAdams County Unclassifiable/Attainment.\nBlaine County Unclassifiable/Attainment.\nBoise County Unclassifiable/Attainment.\nBonner County Unclassifiable/Attainment.\nBoundary County Unclassifiable/Attainment.\nCamas County Unclassifiable/Attainment.\nCassia County Unclassifiable/Attainment.\nClearwater County Unclassifiable/Attainment.\nCuster County Unclassifiable/Attainment.\nElmore County Unclassifiable/Attainment.\nGem County Unclassifiable/Attainment.\nGooding County Unclassifiable/Attainment.\nIdaho County Unclassifiable/Attainment.\nJerome County Unclassifiable/Attainment.\nLemhi County Unclassifiable/Attainment.\nLewis County Unclassifiable/Attainment.\nLincoln County Unclassifiable/Attainment.\nMinidoka County Unclassifiable/Attainment.\nOwyhee County Unclassifiable/Attainment.\nPayette County Unclassifiable/Attainment.\nTwin Falls County Unclassifiable/Attainment.\nValley County Unclassifiable/Attainment.\nWashington County Unclassifiable/Attainment.\nAQCR 64 Metropolitan Boise Interstate:\nAda County Unclassifiable/Attainment.\nCanyon 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.\n2 This date is July 2, 2014, unless otherwise noted.\nIdaho—NO2 (1971 Annual Standard)\nDesignated area Does not meet primary standards Cannot be classified or better than national standards\nEastern Idaho Intrastate AQCR 61 X\nEastern Washington-Northern Idaho Interstate AQCR 62 (Idaho Portion) X\nIdaho Intrastate AQCR 63 X\nMetropolitan Boise Intrastate AQCR 64 X\nIdaho—NO2\n[2010 1-Hour standard]\nDesignated area Designation a\nDate 1 Type\nState of Idaho 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.\nIdaho—1997 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area Designation a Category/classification\nDate 1 Type Date 1 Type\nAQCR 61 Eastern Idaho Intrastate Unclassifiable/Attainment\nBannock County\nBear Lake County\nBingham County\nBonneville County\nButte County\nCaribou County\nClark County\nFranklin County\nFremont County\nJefferson County\nMadison County\nOneida County\nPower County\nTeton County\nAQCR 62 E Washington-N Idaho Interstate Unclassifiable/Attainment\nBenewah County\nKootenai County\nLatah County\nNez Perce County\nShoshone County\nAQCR 63 Idaho Intrastate Unclassifiable/Attainment\nAdams County\nBlaine County\nBoise County\nBonner County\nBoundary County\nCamas County\nCassia County\nClearwater County\nCuster County\nElmore County\nGem County\nGooding County\nIdaho County\nJerome County\nLemhi County\nLewis County\nLincoln County\nMinidoka County\nOwyhee County\nPayette County\nTwin Falls County\nValley County\nWashington County\nAQCR 64 Metropolitan Boise Interstate Unclassifiable/Attainment\nAda County\nCanyon 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.\nIdaho—2008 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area 2 Designation Classification\nDate 1 Type Date 1 Type\nStatewide and Any Areas of Indian Country Unclassifiable/Attainment\n1 This date is July 20, 2012, unless otherwise noted.\nIdaho—2015 8-Hour Ozone NAAQS\n[Primary and Secondary]\nDesignated area 1 Designation Classification\nDate 2 Type Date Type\nStatewide Attainment/Unclassifiable\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.\nIdaho—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":"debf7739d9186cb32fa806c0eba530945dbc8b7bea088c2afee830d4af77fd18","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-81.312","next":"us/40-cfr-81.314"},"notice":"GroundRules: Original legal text. Not legal advice."}