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 Code of Federal Regulations (Last Updated: October 10, 2024)
 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

  § 81.338 - Oregon.  

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  • § 81.338 Oregon.

    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 190X
    Eastern Oregon Intrastate AQCR 191X
    Northwest Oregon Intrastate AQCR 192X
    Portland Interstate AQCR 193 (Oregon Portion)X
    Southwest Oregon Intrastate AQCR 194X

    Oregon—2010 Sulfur Dioxide NAAQS

    [Primary]

    Designated area1 Designation
    Date2 Type
    Entire StateAttainment/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
    Date1 Type Date1 Type
    Eugene-Springfield Area
    Lane County (part)1/5/94Attainment1/5/94
    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 District10/30/00Attainment
    Klamath Falls Area
    Klamath County (part)11/9/01Attainment
    Urban Growth Boundary
    Medford Area
    Jackson County (part)9/23/02Attainment
    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)3/2/09
    Polk County (part)3/2/09
    AQCR 190 Remainder of Central Oregon IntrastateUnclassifiable/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 IntrastateUnclassifiable/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 IntrastateUnclassifiable/Attainment
    Clatsop County
    Lincoln County
    Tillamook County
    AQCR 193 Remainder of Portland InterstateUnclassifiable/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 OregonUnclassifiable/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
    Date1 Type Date1 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 IntrastateUnclassifiable/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 IntrastateUnclassifiable/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 AreaUnclassifiable/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)7/19/06Attainment
    Klamath Falls (the Urban Growth Boundary area)12/22/03Attainment
    Remainder of AQCR 19011/15/90Unclassifiable
    Eastern Oregon Intrastate AQCR 191:
    La Grande (the Urban Growth Boundary area)7/19/06Attainment
    Remainder of AQCR 19111/15/90Unclassifiable
    Northwest Oregon Intrastate AQCR 19211/15/90Unclassifiable
    Portland Interstate AQCR 193 (Oregon Portion):
    Portland-Vancouver (portion of the Air Quality Maintenance Area)11/15/90Unclassifiable
    Eugene/Springfield (the Urban Growth Boundary area)6/10/13Attainment
    Oakridge (the Urban Growth Boundary area)8/22/2022Attainment
    Remainder of AQCR 193 (Oregon Portion)11/15/90Unclassifiable
    Southwest Oregon Intrastate AQCR 194:
    Medford Air Quality Maintenance Area (including White City)8/18/06Attainment
    Grants Pass (the Urban Growth Boundary area)12/26/03Attainment
    Remainder of AQCR 19411/15/90Unclassifiable

    Oregon—1997 Annual PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 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 CountyUnclassifiable/Attainment.
    AQCR 190 Central Oregon Intrastate (remainder of):
    Crook CountyUnclassifiable/Attainment.
    Deschutes CountyUnclassifiable/Attainment.
    Hood River CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Klamath CountyUnclassifiable/Attainment.
    Lake CountyUnclassifiable/Attainment.
    Sherman CountyUnclassifiable/Attainment.
    Wasco CountyUnclassifiable/Attainment.
    AQCR 191 Eastern Oregon Intrastate:
    Baker CountyUnclassifiable/Attainment.
    Gilliam CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Harney CountyUnclassifiable/Attainment.
    Malheur CountyUnclassifiable/Attainment.
    Morrow CountyUnclassifiable/Attainment.
    Umatilla CountyUnclassifiable/Attainment.
    Union CountyUnclassifiable/Attainment.
    Wallowa CountyUnclassifiable/Attainment.
    Wheeler CountyUnclassifiable/Attainment.
    AQCR 192 Northwest Oregon Intrastate:
    Clatsop CountyUnclassifiable/Attainment.
    Lincoln CountyUnclassifiable/Attainment.
    Tillamook CountyUnclassifiable/Attainment.
    AQCR 193 Portland Interstate (part):
    Lane County (part)Unclassifiable/Attainment.
    Eugene Springfield Air Quality Maintenance Area
    AQCR 193 Portland Interstate (remainder of):
    Benton CountyUnclassifiable/Attainment.
    Clackamas County (remainder)Unclassifiable/Attainment.
    Columbia CountyUnclassifiable/Attainment.
    Lane County (remainder)Unclassifiable/Attainment.
    Linn CountyUnclassifiable/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 CountyUnclassifiable/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 CountyUnclassifiable/Attainment.
    Curry CountyUnclassifiable/Attainment.
    Douglas CountyUnclassifiable/Attainment.
    Jackson County (remainder)Unclassifiable/Attainment.
    Josephine 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.

    Oregon—2012 Annual PM2.5 NAAQS

    [Primary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    AQCR 190 Central Oregon Intrastate
    Crook CountyUnclassifiable/Attainment
    Deschutes CountyUnclassifiable/Attainment
    Hood River CountyUnclassifiable/Attainment
    Jefferson CountyUnclassifiable/Attainment
    Klamath CountyUnclassifiable/Attainment
    Lake CountyUnclassifiable/Attainment
    Sherman CountyUnclassifiable/Attainment
    Wasco CountyUnclassifiable/Attainment
    AQCR 191 Eastern Oregon Intrastate
    Baker CountyUnclassifiable/Attainment
    Gilliam CountyUnclassifiable/Attainment
    Grant CountyUnclassifiable/Attainment
    Harney CountyUnclassifiable/Attainment
    Malheur CountyUnclassifiable/Attainment
    Morrow CountyUnclassifiable/Attainment
    Umatilla CountyUnclassifiable/Attainment
    Union CountyUnclassifiable/Attainment
    Wallowa CountyUnclassifiable/Attainment
    Wheeler CountyUnclassifiable/Attainment
    AQCR 192 Northwest Oregon Intrastate
    Clatsop CountyUnclassifiable/Attainment
    Lincoln CountyUnclassifiable/Attainment
    Tillamook CountyUnclassifiable/Attainment
    AQCR 193 Portland Interstate (Oregon Portion)
    Benton CountyUnclassifiable/Attainment
    Clackamas CountyUnclassifiable/Attainment
    Columbia CountyUnclassifiable/Attainment
    Lane CountyUnclassifiable/Attainment
    Linn CountyUnclassifiable/Attainment
    Marion CountyUnclassifiable/Attainment
    Multnomah CountyUnclassifiable/Attainment
    Polk CountyUnclassifiable/Attainment
    Washington CountyUnclassifiable/Attainment
    Yamhill CountyUnclassifiable/Attainment
    AQCR 194 Southwest Oregon Intrastate
    Coos CountyUnclassifiable/Attainment
    Curry CountyUnclassifiable/Attainment
    Douglas CountyUnclassifiable/Attainment
    Jackson CountyUnclassifiable/Attainment
    Josephine 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.

    Oregon—1997 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 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 CountyUnclassifiable/Attainment.
    AQCR 190 Central Oregon Intrastate:
    Crook CountyUnclassifiable/Attainment.
    Deschutes CountyUnclassifiable/Attainment.
    Hood River CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Klamath County (remainder)Unclassifiable/Attainment.
    Lake CountyUnclassifiable/Attainment.
    Sherman CountyUnclassifiable/Attainment.
    Wasco CountyUnclassifiable/Attainment.
    AQCR 191 Eastern Oregon Intrastate:
    Baker CountyUnclassifiable/Attainment.
    Gilliam CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Harney CountyUnclassifiable/Attainment.
    Malheur CountyUnclassifiable/Attainment.
    Morrow CountyUnclassifiable/Attainment.
    Umatilla CountyUnclassifiable/Attainment.
    Union CountyUnclassifiable/Attainment.
    Wallowa CountyUnclassifiable/Attainment.
    Wheeler CountyUnclassifiable/Attainment.
    AQCR 192 Northwest Oregon Intrastate:
    Clatsop CountyUnclassifiable/Attainment.
    Lincoln CountyUnclassifiable/Attainment.
    Tillamook CountyUnclassifiable/Attainment.
    AQCR 193 Portland Interstate (part):
    Lane County (part)Unclassifiable/Attainment.
    Eugene Springfield Air Quality Maintenance AQCR 193 Portland Interstate:
    Benton CountyUnclassifiable/Attainment.
    Clackamas County (remainder)Unclassifiable/Attainment.
    Columbia CountyUnclassifiable/Attainment.
    Lane County (remainder)Unclassifiable/Attainment.
    Linn CountyUnclassifiable/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 CountyUnclassifiable/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 CountyUnclassifiable/Attainment.
    Curry CountyUnclassifiable/Attainment.
    Douglas CountyUnclassifiable/Attainment.
    Jackson County (remainder)Unclassifiable/Attainment.
    Josephine 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.

    Oregon—2006 24-Hour PM2.5 NAAQS

    [Primary and Secondary]

    Designated area Designationa Classification
    Date1 Type Date2 Type
    Klamath Falls, OR:
    Klamath County (part)NonattainmentModerate.
    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)8/22/2022Attainment
    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 CountyUnclassifiable/Attainment.
    AQCR 190 Central Oregon Intrastate:
    Crook CountyUnclassifiable/Attainment.
    Deschutes CountyUnclassifiable/Attainment.
    Hood River CountyUnclassifiable/Attainment.
    Jefferson CountyUnclassifiable/Attainment.
    Klamath County (remainder)Unclassifiable/Attainment.
    Lake CountyUnclassifiable/Attainment.
    Sherman CountyUnclassifiable/Attainment.
    Wasco CountyUnclassifiable/Attainment.
    AQCR 191 Eastern Oregon Intrastate:
    Baker CountyUnclassifiable/Attainment.
    Gilliam CountyUnclassifiable/Attainment.
    Grant CountyUnclassifiable/Attainment.
    Harney CountyUnclassifiable/Attainment.
    Malheur CountyUnclassifiable/Attainment.
    Morrow CountyUnclassifiable/Attainment.
    Umatilla CountyUnclassifiable/Attainment.
    Union CountyUnclassifiable/Attainment.
    Wallowa CountyUnclassifiable/Attainment.
    Wheeler CountyUnclassifiable/Attainment.
    AQCR 192 Northwest Oregon Intrastate:
    Clatsop CountyUnclassifiable/Attainment.
    Lincoln CountyUnclassifiable/Attainment.
    Tillamook CountyUnclassifiable/Attainment.
    AQCR 193 Portland Interstate (part):
    Lane County (part)Unclassifiable/Attainment.
    Eugene Springfield Air Quality Maintenance AQCR 193 Portland Interstate:
    Benton CountyUnclassifiable/Attainment.
    Clackamas County (remainder)Unclassifiable/Attainment.
    Columbia CountyUnclassifiable/Attainment.
    Lane County (remainder)Unclassifiable/Attainment.
    Linn CountyUnclassifiable/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 CountyUnclassifiable/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 CountyUnclassifiable/Attainment.
    Curry CountyUnclassifiable/Attainment.
    Douglas CountyUnclassifiable/Attainment.
    Jackson County (remainder)Unclassifiable/Attainment.
    Josephine CountyUnclassifiable/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—NO2 (1971 Annual Standard)

    Designated area Does not meet primary standards Cannot be classified or better than national standards
    Central Oregon Intrastate AQCR 190X
    Eastern Oregon Intrastate AQCR 191X
    Northwest Oregon Intrastate AQCR 192X
    Portland Interstate AQCR 193 (Oregon Portion)X
    Southwest Oregon Intrastate AQCR 194X

    Oregon—NO2

    [2010 1-Hour standard]

    Designated area Designationa
    Date1 Type
    StatewideUnclassifiable/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 areaa Category/classification
    Date1 Type Date1 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 CountyUnclassifiable/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 IntrastateUnclassifiable/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 IntrastateUnclassifiable/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 AreaUnclassifiable/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
    Date1 Type Date1 Type
    Statewide and Any Areas of Indian CountryUnclassifiable/Attainment

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

    Oregon—2015 8-Hour Ozone NAAQS

    [Primary and Secondary]

    Designated area1 Designation Classification
    Date2 Type Date2 Type
    Baker County1/16/18Attainment/Unclassifiable
    Benton CountyAttainment/Unclassifiable
    Clackamas CountyAttainment/Unclassifiable
    Clatsop County1/16/18Attainment/Unclassifiable
    Columbia CountyAttainment/Unclassifiable
    Coos County1/16/18Attainment/Unclassifiable
    Crook County1/16/18Attainment/Unclassifiable
    Curry County1/16/18Attainment/Unclassifiable
    Deschutes County1/16/18Attainment/Unclassifiable
    Douglas County1/16/18Attainment/Unclassifiable
    Gilliam County1/16/18Attainment/Unclassifiable
    Grant County1/16/18Attainment/Unclassifiable
    Harney County1/16/18Attainment/Unclassifiable
    Hood River County1/16/18Attainment/Unclassifiable
    Jackson County1/16/18Attainment/Unclassifiable
    Jefferson County1/16/18Attainment/Unclassifiable
    Josephine County1/16/18Attainment/Unclassifiable
    Klamath County1/16/18Attainment/Unclassifiable
    Lake County1/16/18Attainment/Unclassifiable
    Lane County1/16/18Attainment/Unclassifiable
    Lincoln County1/16/18Attainment/Unclassifiable
    Linn CountyAttainment/Unclassifiable
    Malheur County1/16/18Attainment/Unclassifiable
    Marion CountyAttainment/Unclassifiable
    Morrow County1/16/18Attainment/Unclassifiable
    Multnomah CountyAttainment/Unclassifiable
    Polk CountyAttainment/Unclassifiable
    Sherman County1/16/18Attainment/Unclassifiable
    Tillamook County1/16/18Attainment/Unclassifiable
    Umatilla County1/16/18Attainment/Unclassifiable
    Union County1/16/18Attainment/Unclassifiable
    Wallowa County1/16/18Attainment/Unclassifiable
    Wasco County1/16/18Attainment/Unclassifiable
    Washington CountyAttainment/Unclassifiable
    Wheeler County1/16/18Attainment/Unclassifiable
    Yamhill 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 August 3, 2018, unless otherwise noted.

    Oregon—2008 Lead NAAQS

    Designated area Designation for the 2008 NAAQSa
    Date1 Type
    Whole StateUnclassifiable/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

    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.