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  1. Home
  2. Permitting Under the Clean Air Act

Clean Air Act permit program reviews in EPA Region 10

EPA periodically reviews state and local air permitting programs as part of our responsibility to oversee delegated and approved permitting programs. The objective of program reviews are to:

  • Identify good practices that other agencies can learn from.
  • Document areas needing improvement.
  • Learn how EPA can help improve state and local Clean Air Act Title V programs and expedite permitting.
On this page:
  • Alaska Title V program reviews
  • Idaho Title V program reviews
  • Oregon Title V program reviews
  • Washington Title V program reviews

Alaska Title V program reviews

  • Alaska Department of Environmental Conservation Title V Program Review (2nd Round) (pdf) (2.84 MB, September 2015)
  • Alaska Department of Environmental Conservation Title V Program Review (1st Round) (pdf) (692.66 KB, September 2006)

Idaho Title V program reviews

  • Idaho Department of Environmental Quality Title V Program Review (3rd Round) (pdf) (3.04 MB, September 2023)
    To access the attachments contained within this Adobe Acrobat document, right click on the document link and then click on 'Save target as...' or ‘Save link as…’ to download the pdf file. Open the saved pdf file with the free version of Adobe Acrobat Reader DC. Open the Attachments tab on the left side of the window screen and double click to select which pdf attachment file to open.
  • Idaho Department of Environmental Quality Title V Program Review (2nd Round) (pdf) (514.11 KB, September 2007)
  • Idaho Department of Environmental Quality Title V Program Review (1st Round) (pdf) (154.82 KB, January 2004)

Oregon Title V program reviews

  • Lane Regional Air Protection Agency Title V Program Review (2nd Round) (pdf) (3.55 MB, August 2017)
  • Oregon Department of Environmental Quality Title V Program Review (2nd Round) (pdf) (6.91 MB, September 2016)
  • Oregon Department of Environmental Quality Title V Program Review (1st Round) (pdf) (88.18 KB, June 2006)
  • Lane Regional Air Protection Agency Title V Program Review (1st Round) (pdf) (1.21 MB, June 2006)

Washington Title V program reviews

  • Benton Clean Air Agency Title V Program Review (1st Round) (pdf) (1.2 MB, September 2024)
    To access the attachments contained within this Adobe Acrobat document, right click on the document link and then click on 'Save target as...' or ‘Save link as…’ to download the pdf file. Open the saved pdf file with the free version of Adobe Acrobat Reader DC. Open the Attachments tab on the left side of the window screen and double click to select which pdf attachment file to open.
  • Washington Department of Ecology Title V Program Review (3rd Round) (pdf) (5.52 MB, September 2022)
    To access the attachments contained within this Adobe Acrobat document, right click on the document link and then click on 'Save target as...' or ‘Save link as…’ to download the pdf file. Open the saved pdf file with the free version of Adobe Acrobat Reader DC. Open the Attachments tab on the left side of the window screen and double click to select which pdf attachment file to open.
  • Washington Department of Ecology Title V Program Review (2nd Round) (pdf) (1.34 MB, September 2014)
  • Washington Department of Ecology Title V Program Review (1st Round) (pdf) (70.68 KB, September 2006)
  • Northwest Clean Air Agency Title V Program Review (2nd Round) (pdf) (2.78 MB, September 2013)
  • Northwest Clean Air Agency Title V Program Review (1st Round) (pdf) (69.83 KB, October 2006)
  • Olympic Region Clean Air Agency Title V Program Review (2nd Round) (pdf) (388.93 KB, December 2020)
  • Olympic Region Clean Air Agency Title V Program Review (1st Round) (pdf) (58.73 KB, September 2007)
  • Puget Sound Clean Air Agency Title V Program Review (3rd Round) (pdf) (1.83 MB, September 2021)
    To access the attachments contained within this Adobe Acrobat document, right click on the document link and then click on 'Save target as...' or ‘Save link as…’ to download the pdf file. Open the saved pdf file with the free version of Adobe Acrobat Reader DC. Open the Attachments tab on the left side of the window screen and double click to select which pdf attachment file to open.
  • Puget Sound Clean Air Agency Title V Program Review (2nd Round) (pdf) (110.23 KB, September 2008)
  • Puget Sound Clean Air Agency Title V Program Review (1st Round) (pdf) (70.75 KB, September 2006)
  • Southwest Clean Air Agency Title V Program Review (2nd Round) (pdf) (5.01 MB, November 2019)
  • Southwest Clean Air Agency Title V Program Review (1st Round) (pdf) (63.19 KB, September 2007)
  • Spokane Regional Clean Air Agency Title V Program Review (2nd Round) (pdf) (3.34 MB, September 2018)
  • Spokane Regional Clean Air Agency Title V Program Review (1st Round) (pdf) (81.91 KB, August 2006)
  • Yakima Regional Clean Air Agency Title V Program Review (1st Round) (pdf) (1.53 MB, September 2024)
    To access the attachments contained within this Adobe Acrobat document, right click on the document link and then click on 'Save target as...' or ‘Save link as…’ to download the pdf file. Open the saved pdf file with the free version of Adobe Acrobat Reader DC. Open the Attachments tab on the left side of the window screen and double click to select which pdf attachment file to open.

Other Region 10 Air Permitting Resources

  • Air permitting in the Pacific Northwest
  • EPA-issued permits
  • Delegations & approvals
  • Permit program reviews
  • Permitting authorities:
    • Alaska
    • Idaho
    • Oregon
    • Washington

Permitting Under the Clean Air Act

  • Clean Air Act Permitting Around the Nation
    • New England Region (R1)
    • New York, New Jersey, Puerto Rico and U.S. Virgin Islands (R2)
    • Mid-Atlantic Region (R3)
    • Southeastern Region (R4)
    • Great Lakes Region (R5)
    • South Central Region (R6)
    • Midwest Region (R7)
    • Mountains and Plains Region (R8)
    • Pacific Southwest Region (R9)
      • Air Permit Delegation and PSD SIP Approval
      • Electronic Permit System and Dashboards
      • Pending and Issued Permits
      • About NSR Permitting
      • About OCS Permitting
      • About PSD Permitting
      • About Title V Permitting
      • Permitting in Arizona
      • Permitting in California
      • Permitting in Hawai'i and Pacific Islands
      • Permitting in Nevada
    • Pacific Northwest Region (R10)
  • CAA Permitting Tools & ​Related Resources
  • Outer Continental Shelf Air Permits
Contact Us About Permitting Under the Clean Air Act
Contact Us About Permitting Under the Clean Air Act to ask a question, provide feedback, or report a problem.
Last updated on September 17, 2025
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