40 C.F.R. § 81.338

Oregon.

Last amended: 2023Year: 2026Length: 3,059 wordsOfficial source

Cite as 40 C.F.R. § 81.338 (2026)

Oregon—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 Central Oregon Intrastate AQCR 190 X Eastern Oregon Intrastate AQCR 191 X Northwest Oregon Intrastate AQCR 192 X Portland Interstate AQCR 193 (Oregon Portion) X Southwest Oregon Intrastate AQCR 194 X Oregon—2010 Sulfur Dioxide NAAQS [Primary] Designated area 1 Designation Date 2 Type Entire State Attainment/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. Oregon—Carbon Monoxide Designated Area Designation Classification Date 1 Type Date 1 Type Eugene-Springfield Area Lane County (part) 1/5/1994 Attainment 1/5/1994 The Eugene-Springfield Area is described as: The area within the bounds beginning at the Northwest corner of T17S, R4W; extending South to the Southwest corner of Section 6, T17S, R4W; thence East to the Northwest corner of Section 8, T17S, R4W; thence South to the Southwest corner of Section 32, T17S, R4W; thence East to the Northeast corner of Section 4, T18S, R4W; thence South to the Southwest corner of Section 3, T18S, R4W; thence East to the Northwest corner Section 12, T18S, R4W; thence South to the Southwest corner of Section 13, T18S, R4W; thence East to the Northeast corner of Section 24, T18S, R4W; thence South to the Southeast corner of Section 24, T18S, R4W; thence East to the Northeast corner of Section 21, T18S, R3W; thence North to the Northeast corner of Section 21, T18S, R3W; thence East to the Northeast corner of Section 22, T18S, R3W; thence South to the Southwest corner of Section 23, T18S, R3W; thence East to the Southeast corner of Section 24, T18S, R3W; thence North to the Southeast corner of Section 1, T18S, R3W; thence East to the Southeast corner of Section 2, T18S, R2W; thence North to the Northeast corner of Section 26, T17S, R2W; thence West to the Southwest corner of Section 20, T17S, R2W; thence North to the Northwest corner of Section 20, T17S, R2W; thence West to the Southwest corner of Section 13, T17S, R3W; thence North to the Northwest corner of Section 13, T17S, R3W; thence West to the Southwest corner of Section 11, T17S, R3W; thence North to the Northwest corner of Section 11, T17S, R3W; thence West to the Southwest corner of Section 6, T17S, R3W; thence North to the Northwest corner of Section 31, T16S, R3W; thence West to the Northwest corner of Section 34, T16S, R4W; thence South to the Southwest corner of Section 34, T16S, R4W; thence West to the point of beginning Grants Pass Area: Josephine County (part) Central Business District 10/30/2000 Attainment Klamath Falls Area Klamath County (part) 11/9/2001 Attainment Urban Growth Boundary Medford Area Jackson County (part) 9/23/2002 Attainment Medford Urban Growth Boundary Portland Area Portland Metro Service District Boundary Clackamas County (part) Attainment Multnomah County (part) Attainment Washington County (part) Attainment Salem Area: Salem Area Transportation Study Marion County (part) 3/2/2009 Polk County (part) 3/2/2009 AQCR 190 Remainder of Central Oregon Intrastate Unclassifiable/Attainment Crook County Deschutes County Hood River County Jefferson County Klamath County (part) area outside Urban Growth Boundary Lake County Sherman County Wasco County AQCR 191 Eastern Oregon Intrastate Unclassifiable/Attainment Baker County Gilliam County Grant County Harney County Malheur County Morrow County Umatilla County Union County Wallowa County Wheeler County AQCR 192 Northwest Oregon Intrastate Unclassifiable/Attainment Clatsop County Lincoln County Tillamook County AQCR 193 Remainder of Portland Interstate Unclassifiable/Attainment Benton County Clackamas County (part) area outside Portland Metro Service District Boundary Columbia County Lane County (part) area outside of Air Quality Maintenance area Linn County Marion County (part) area outside the city of Salem Multnomah County (part) area outside Portand Metro Service District Boundary Polk County (part) area outside of Salem Washington County (part) area outside Portland Metro Service District Boundary Yamhill County AQCR 194 Remainder of Southwest Oregon Unclassifiable/Attainment Coos County Curry County Douglas County Jackson County (part) area outside Medford Urban growth boundary Josephine County (part) area outside of Central Business District 1 This date is November 15, 1990, unless otherwise noted. Oregon—Ozone (1-Hour Standard) 3 Designated area Designation Classification Date 1 Type Date 1 Type Portland-Vancouver AQMA Area: Attainment Air Quality Maintenance Area Clackamas County (part) Multnomah County (part) Washington County (part) Salem Area: Salem Area Transportation Study Marion County (part) ( 2 ) Nonattainment ( 2 ) Incomplete Data. Polk County ( 2 ) Nonattainment ( 2 ) Incomplete Data. AQCR 190 Central Oregon Intrastate (Remainder of) Unclassifiable/Attainment Crook County Deschutes County Hood River County Jefferson County Klamath County Lake County Sherman County Wasco County AQCR 191 Eastern Oregon Intrastate Unclassifiable/Attainment Baker County Gilliam County Grant County Harney County Malheur County Morrow County Umatilla County Union County Wallowa County Wheeler County AQCR 192 Northwest Oregon Intrastate Unclassifiable/Attainment Clatsop County Lincoln County Tillamook County AQCR 193 Portland Interstate (part) Unclassifiable/Attainment Lane County (part) Eugene Springfield Air Quality Maintenance Area AQCR 193 Portland Interstate (Remainder of) Unclassifiable/Attainment Benton County Clackamas County (part) Remainder of county Columbia County Lane County (part) Remainder of county Linn County Marion County (part) area outside the Salem Area Transportation Study Multnomah County (part) Remainder of county Polk County (part) area outside the Salem Area Transportation Study Washington County (part) Remainder of county Yamhill County AQCR 194 Southwest Oregon Intrastate (part) Jackson County (part) Medford-Ashland Air Quality Maintenance Area Unclassifiable/Attainment AQCR 194 Southwest Oregon Intrastate (Remainder of) Unclassifiable/Attainment Coos County Curry County Douglas County Jackson County (part) Remainder of county Josephine County 1 This date is October 18, 2000, unless otherwise noted. 2 This date is January 16, 2001. 3 The 1-hour ozone standard is revoked effective June 15, 2005 for all areas in Oregon. Portland-Vancouver AQMA is a maintenance area for the 1-hour NAAQS for purposes of 40 CFR part 51 subpart X. Oregon—PM-10 Designated Area Designation Classification Date Type Date Type Central Oregon Intrastate AQCR 190: Lakeview (the Urban Growth Boundary area) 7/19/2006 Attainment Klamath Falls (the Urban Growth Boundary area) 12/22/2003 Attainment Remainder of AQCR 190 11/15/1990 Unclassifiable Eastern Oregon Intrastate AQCR 191: La Grande (the Urban Growth Boundary area) 7/19/2006 Attainment Remainder of AQCR 191 11/15/1990 Unclassifiable Northwest Oregon Intrastate AQCR 192 11/15/1990 Unclassifiable Portland Interstate AQCR 193 (Oregon Portion): Portland-Vancouver (portion of the Air Quality Maintenance Area) 11/15/1990 Unclassifiable Eugene/Springfield (the Urban Growth Boundary area) 6/10/2013 Attainment Oakridge (the Urban Growth Boundary area) 8/22/2022 Attainment Remainder of AQCR 193 (Oregon Portion) 11/15/1990 Unclassifiable Southwest Oregon Intrastate AQCR 194: Medford Air Quality Maintenance Area (including White City) 8/18/2006 Attainment Grants Pass (the Urban Growth Boundary area) 12/26/2003 Attainment Remainder of AQCR 194 11/15/1990 Unclassifiable Oregon—1997 Annual PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type Portland-Vancouver AQMA: (Air Quality Maintenance Area): Clackamas County (part) Unclassifiable/Attainment. Multnomah County (part) Unclassifiable/Attainment. Washington County (part) Unclassifiable/Attainment. Salem Area: (Salem Area Transportation Study): Marion County (part) Unclassifiable/Attainment. Polk County Unclassifiable/Attainment. AQCR 190 Central Oregon Intrastate (remainder of): Crook County Unclassifiable/Attainment. Deschutes County Unclassifiable/Attainment. Hood River County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Klamath County Unclassifiable/Attainment. Lake County Unclassifiable/Attainment. Sherman County Unclassifiable/Attainment. Wasco County Unclassifiable/Attainment. AQCR 191 Eastern Oregon Intrastate: Baker County Unclassifiable/Attainment. Gilliam County Unclassifiable/Attainment. Grant County Unclassifiable/Attainment. Harney County Unclassifiable/Attainment. Malheur County Unclassifiable/Attainment. Morrow County Unclassifiable/Attainment. Umatilla County Unclassifiable/Attainment. Union County Unclassifiable/Attainment. Wallowa County Unclassifiable/Attainment. Wheeler County Unclassifiable/Attainment. AQCR 192 Northwest Oregon Intrastate: Clatsop County Unclassifiable/Attainment. Lincoln County Unclassifiable/Attainment. Tillamook County Unclassifiable/Attainment. AQCR 193 Portland Interstate (part): Lane County (part) Unclassifiable/Attainment. Eugene Springfield Air Quality Maintenance Area AQCR 193 Portland Interstate (remainder of): Benton County Unclassifiable/Attainment. Clackamas County (remainder) Unclassifiable/Attainment. Columbia County Unclassifiable/Attainment. Lane County (remainder) Unclassifiable/Attainment. Linn County Unclassifiable/Attainment. Marion County (part) Unclassifiable/Attainment. The area outside the Salem Area Transportation Study Multnomah County (remainder) Unclassifiable/Attainment. Polk County (part) Unclassifiable/Attainment. The area outside the Salem Area Transportation Study Washington County (remainder) Unclassifiable/Attainment. Yamhill County Unclassifiable/Attainment. AQCR 194 Southwest Oregon Intrastate (part): Jackson County (part) Unclassifiable/Attainment. Medford-Ashland Air Quality Maintenance Area AQCR 194 Southwest Oregon Intrastate (remainder of): Coos County Unclassifiable/Attainment. Curry County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Jackson County (remainder) Unclassifiable/Attainment. Josephine County Unclassifiable/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. Oregon—2012 Annual PM 2.5 NAAQS [Primary] Designated area 1 Designation Classification Date 2 Type Date 2 Type AQCR 190 Central Oregon Intrastate Crook County Unclassifiable/Attainment Deschutes County Unclassifiable/Attainment Hood River County Unclassifiable/Attainment Jefferson County Unclassifiable/Attainment Klamath County Unclassifiable/Attainment Lake County Unclassifiable/Attainment Sherman County Unclassifiable/Attainment Wasco County Unclassifiable/Attainment AQCR 191 Eastern Oregon Intrastate Baker County Unclassifiable/Attainment Gilliam County Unclassifiable/Attainment Grant County Unclassifiable/Attainment Harney County Unclassifiable/Attainment Malheur County Unclassifiable/Attainment Morrow County Unclassifiable/Attainment Umatilla County Unclassifiable/Attainment Union County Unclassifiable/Attainment Wallowa County Unclassifiable/Attainment Wheeler County Unclassifiable/Attainment AQCR 192 Northwest Oregon Intrastate Clatsop County Unclassifiable/Attainment Lincoln County Unclassifiable/Attainment Tillamook County Unclassifiable/Attainment AQCR 193 Portland Interstate (Oregon Portion) Benton County Unclassifiable/Attainment Clackamas County Unclassifiable/Attainment Columbia County Unclassifiable/Attainment Lane County Unclassifiable/Attainment Linn County Unclassifiable/Attainment Marion County Unclassifiable/Attainment Multnomah County Unclassifiable/Attainment Polk County Unclassifiable/Attainment Washington County Unclassifiable/Attainment Yamhill County Unclassifiable/Attainment AQCR 194 Southwest Oregon Intrastate Coos County Unclassifiable/Attainment Curry County Unclassifiable/Attainment Douglas County Unclassifiable/Attainment Jackson County Unclassifiable/Attainment Josephine County Unclassifiable/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. Oregon—1997 24-Hour PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date Type Klamath Falls, OR: Klamath County (part) Unclassifiable/Attainment. Townships and ranges defined by T37S R9E Sections 31-32. T38S R8E Sections 1-5, 8-16, 22-26, 35-36. T38S R9E Sections 5-8, 14-15, 17-36. T39S R8E Sections 1-2, 11-13, 24. T39S R9E Sections 1-27. T39S R10E Sections 3-10, 15-20, 29-30. Oakridge, OR: Lane County (part) Unclassifiable/Attainment. Boundary is defined as a line from Township 21 South, Range 2 East, Section 11 (northwest corner) east to Township 21 South, Range 3 East, Section 11 (northeast corner), south to Township 21 South, Range 3 East, Section 23 (southeast corner), west to Township 21 South, Range 2 East, Section 23 (southwest corner) connecting back to Township 21 South, Range 2 East, Section 11 (northwest corner). Rest of State: Portland-Vancouver AQMA: (Air Quality Maintenance Area) Clackamas County (part) Unclassifiable/Attainment. Multnomah County (part) Unclassifiable/Attainment. Washington County (part) Unclassifiable/Attainment. Salem Area: (Salem Area Transportation Study): Marion County (part) Unclassifiable/Attainment. Polk County Unclassifiable/Attainment. AQCR 190 Central Oregon Intrastate: Crook County Unclassifiable/Attainment. Deschutes County Unclassifiable/Attainment. Hood River County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Klamath County (remainder) Unclassifiable/Attainment. Lake County Unclassifiable/Attainment. Sherman County Unclassifiable/Attainment. Wasco County Unclassifiable/Attainment. AQCR 191 Eastern Oregon Intrastate: Baker County Unclassifiable/Attainment. Gilliam County Unclassifiable/Attainment. Grant County Unclassifiable/Attainment. Harney County Unclassifiable/Attainment. Malheur County Unclassifiable/Attainment. Morrow County Unclassifiable/Attainment. Umatilla County Unclassifiable/Attainment. Union County Unclassifiable/Attainment. Wallowa County Unclassifiable/Attainment. Wheeler County Unclassifiable/Attainment. AQCR 192 Northwest Oregon Intrastate: Clatsop County Unclassifiable/Attainment. Lincoln County Unclassifiable/Attainment. Tillamook County Unclassifiable/Attainment. AQCR 193 Portland Interstate (part): Lane County (part) Unclassifiable/Attainment. Eugene Springfield Air Quality Maintenance AQCR 193 Portland Interstate: Benton County Unclassifiable/Attainment. Clackamas County (remainder) Unclassifiable/Attainment. Columbia County Unclassifiable/Attainment. Lane County (remainder) Unclassifiable/Attainment. Linn County Unclassifiable/Attainment. Marion County (part) Unclassifiable/Attainment. The area outside the Salem Area Transportation Study: Multnomah County (remainder) Unclassifiable/Attainment. Polk County (part) Unclassifiable/Attainment. The area outside the Salem Area Transportation Study: Washington County (remainder) Unclassifiable/Attainment. Yamhill County Unclassifiable/Attainment. AQCR 194 Southwest Oregon Intrastate (part): Jackson County (part) Unclassifiable/Attainment. Medford-Ashland Air Quality Maintenance Area AQCR 194 Southwest Oregon Intrastate: (remainder of): Coos County Unclassifiable/Attainment. Curry County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Jackson County (remainder) Unclassifiable/Attainment. Josephine County Unclassifiable/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. Oregon—2006 24-Hour PM 2.5 NAAQS [Primary and Secondary] Designated area Designation a Classification Date 1 Type Date 2 Type Klamath Falls, OR: Klamath County (part) Nonattainment Moderate. Townships and ranges defined by T37S R9E Sections 31-32. T38S R8E Sections 1-5, 8-16, 22-26, 35-36. T38S R9E Sections 5-8, 14-15, 17-36. T39S R8E Sections 1-2, 11-13, 24. T39S R9E Sections 1-27. T39S R10E Sections 3-10, 15-20, 29-30. Oakridge, OR: Lane County (part) 8/22/2022 Attainment Boundary is defined as a line from Township 21 South, Range 2 East, Section 11 (northwest corner) east to Township 21 South, Range 3 East, Section 11 (northeast corner), south to Township 21 South, Range 3 East, Section 23 (southeast corner), west to Township 21 South, Range 2 East, Section 23 (southwest corner) connecting back to Township 21 South, Range 2 East, Section 11 (northwest corner). Rest of State: Portland-Vancouver AQMA: (Air Quality Maintenance Area) Clackamas County (part) Unclassifiable/Attainment. Multnomah County (part) Unclassifiable/Attainment. Washington County (part) Unclassifiable/Attainment. Salem Area: (Salem Area Transportation Study): Marion County (part) Unclassifiable/Attainment. Polk County Unclassifiable/Attainment. AQCR 190 Central Oregon Intrastate: Crook County Unclassifiable/Attainment. Deschutes County Unclassifiable/Attainment. Hood River County Unclassifiable/Attainment. Jefferson County Unclassifiable/Attainment. Klamath County (remainder) Unclassifiable/Attainment. Lake County Unclassifiable/Attainment. Sherman County Unclassifiable/Attainment. Wasco County Unclassifiable/Attainment. AQCR 191 Eastern Oregon Intrastate: Baker County Unclassifiable/Attainment. Gilliam County Unclassifiable/Attainment. Grant County Unclassifiable/Attainment. Harney County Unclassifiable/Attainment. Malheur County Unclassifiable/Attainment. Morrow County Unclassifiable/Attainment. Umatilla County Unclassifiable/Attainment. Union County Unclassifiable/Attainment. Wallowa County Unclassifiable/Attainment. Wheeler County Unclassifiable/Attainment. AQCR 192 Northwest Oregon Intrastate: Clatsop County Unclassifiable/Attainment. Lincoln County Unclassifiable/Attainment. Tillamook County Unclassifiable/Attainment. AQCR 193 Portland Interstate (part): Lane County (part) Unclassifiable/Attainment. Eugene Springfield Air Quality Maintenance AQCR 193 Portland Interstate: Benton County Unclassifiable/Attainment. Clackamas County (remainder) Unclassifiable/Attainment. Columbia County Unclassifiable/Attainment. Lane County (remainder) Unclassifiable/Attainment. Linn County Unclassifiable/Attainment. Marion County (part) Unclassifiable/Attainment. The area outside the Salem Area Transportation Study: Multnomah County (remainder) Unclassifiable/Attainment. Polk County (part) Unclassifiable/Attainment. The area outside the Salem Area Transportation Study: Washington County (remainder) Unclassifiable/Attainment. Yamhill County Unclassifiable/Attainment. AQCR 194 Southwest Oregon Intrastate (part): Jackson County (part) Unclassifiable/Attainment. Medford-Ashland Air Quality Maintenance Area AQCR 194 Southwest Oregon Intrastate: (remainder of): Coos County Unclassifiable/Attainment. Curry County Unclassifiable/Attainment. Douglas County Unclassifiable/Attainment. Jackson County (remainder) Unclassifiable/Attainment. Josephine County Unclassifiable/Attainment. a Includes Indian Country located in each county or area, except as otherwise specified. 1 his date is 30 days after November 13, 2009, unless otherwise noted. 2 This date is July 2, 2014, unless otherwise noted. Oregon—NO 2 (1971 Annual Standard) Designated area Does not meet primary standards Cannot be classified or better than national standards Central Oregon Intrastate AQCR 190 X Eastern Oregon Intrastate AQCR 191 X Northwest Oregon Intrastate AQCR 192 X Portland Interstate AQCR 193 (Oregon Portion) X Southwest Oregon Intrastate AQCR 194 X Oregon—NO 2 [2010 1-Hour standard] Designated area Designation a Date 1 Type Statewide Unclassifiable/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. Oregon—1997 8-Hour Ozone NAAQS [Primary and Secondary] Designated area Designation area a Category/classification Date 1 Type Date 1 Type Portland-Vancouver AQMA: (Air Quality Maintenance Area) Unclassifiable/Attainment Clackamas County (part) Multnomah County (part) Washington County (part) Salem Area: (Salem Area Transportation Study) Marion County (part) Unclassifiable/Attainment Polk County Unclassifiable/Attainment AQCR 190 Central Oregon Intrastate (remainder of) Unclassifiable/Attainment Crook County Deschutes County Hood River County Jefferson County Klamath County Lake County Sherman County Wasco County AQCR 191 Eastern Oregon Intrastate Unclassifiable/Attainment Baker County Gilliam County Grant County Harney County Malheur County Morrow County Umatilla County Union County Wallowa County Wheeler County AQCR 192 Northwest Oregon Intrastate Unclassifiable/Attainment Clatsop County Lincoln County Tillamook County AQCR 193 Portland Interstate (part) Unclassifiable/Attainment Lane County (part) Eugene Springfield Air Quality Maintenance Area AQCR 193 Portland Interstate (remainder of) Unclassifiable/Attainment Benton County Clackamas County (part) remainder Columbia County Lane County (part) remainder Linn County Marion County (part) The area outside the Salem Area Transportation Study Multnomah County (part) remainder Polk County (part) The area outside the Salem Area Transportation Study Washington County (part) remainder Yamhill County AQCR 194 Southwest Oregon Intrastate (part) Jackson County (part) Medford-Ashland Air Quality Maintenance Area Unclassifiable/Attainment AQCR 194 Southwest Oregon Intrastate (remainder of) Unclassifiable/Attainment Coos County Curry County Douglas County Jackson County (part) remainder Josephine 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. Oregon—2008 8-Hour Ozone NAAQS [Primary and Secondary] Designated area Designation Classification Date 1 Type Date 1 Type Statewide and Any Areas of Indian Country Unclassifiable/Attainment 1 This date is July 20, 2012, unless otherwise noted. Oregon—2015 8-Hour Ozone NAAQS [Primary and Secondary] Designated area 1 Designation Classification Date 2 Type Date 2 Type Baker County 1/16/2018 Attainment/Unclassifiable Benton County Attainment/Unclassifiable Clackamas County Attainment/Unclassifiable Clatsop County 1/16/2018 Attainment/Unclassifiable Columbia County Attainment/Unclassifiable Coos County 1/16/2018 Attainment/Unclassifiable Crook County 1/16/2018 Attainment/Unclassifiable Curry County 1/16/2018 Attainment/Unclassifiable Deschutes County 1/16/2018 Attainment/Unclassifiable Douglas County 1/16/2018 Attainment/Unclassifiable Gilliam County 1/16/2018 Attainment/Unclassifiable Grant County 1/16/2018 Attainment/Unclassifiable Harney County 1/16/2018 Attainment/Unclassifiable Hood River County 1/16/2018 Attainment/Unclassifiable Jackson County 1/16/2018 Attainment/Unclassifiable Jefferson County 1/16/2018 Attainment/Unclassifiable Josephine County 1/16/2018 Attainment/Unclassifiable Klamath County 1/16/2018 Attainment/Unclassifiable Lake County 1/16/2018 Attainment/Unclassifiable Lane County 1/16/2018 Attainment/Unclassifiable Lincoln County 1/16/2018 Attainment/Unclassifiable Linn County Attainment/Unclassifiable Malheur County 1/16/2018 Attainment/Unclassifiable Marion County Attainment/Unclassifiable Morrow County 1/16/2018 Attainment/Unclassifiable Multnomah County Attainment/Unclassifiable Polk County Attainment/Unclassifiable Sherman County 1/16/2018 Attainment/Unclassifiable Tillamook County 1/16/2018 Attainment/Unclassifiable Umatilla County 1/16/2018 Attainment/Unclassifiable Union County 1/16/2018 Attainment/Unclassifiable Wallowa County 1/16/2018 Attainment/Unclassifiable Wasco County 1/16/2018 Attainment/Unclassifiable Washington County Attainment/Unclassifiable Wheeler County 1/16/2018 Attainment/Unclassifiable Yamhill County Attainment/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. Oregon—2008 Lead NAAQS Designated area Designation for the 2008 NAAQS a Date 1 Type Whole State Unclassifiable/Attainment. a Includes Indian Country located in each county or area, except as otherwise specified. 1 December 31, 2011 unless otherwise noted. [54 FR 27345, June 29, 1989] Editorial Note: For Federal Register citations affecting § 81.338, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.
Cross-references to the CFR
81.338
40 C.F.R. § 81.338: Oregon. | Justis AI