Air Quality Minor Source Registration Program

(Air Quality Registration Program)
What is the purpose of this program?
The purpose of the Air Quality Registration Program is to develop and maintain a current and accurate record of air contaminant sources. Information collected through the registration program is used to evaluate the effectiveness of air pollution control strategies and to verify source compliance with applicable air pollution regulations.
Who issues this program?
Department of Ecology
What activities require this program?
A source which is listed under the source classification list in Washington Administrative Code (WAC) 173-400-100 and operates in Washington State.
How much will this program cost?
Sources pay an annual fee based on how much they pollute. For specific information about registration fees, go to Ecology’s Air Quality Registration webpage: http://www.ecology.wa.gov/Regulations-Permits/Reporting-requirements/Air-quality-emissions-reporting/Air-quality-registration 
Do I need to include anything with my application?
Contact the appropriate Ecology region or local air authority to determine the forms required by your facility type.
Is the decision on my program dependent on anything besides the information in my application?
When making the decision on your registration, Ecology will consider the applicable laws and rules, the contents of your emissions inventory forms, and the background environmental conditions.
How long will it take to review my application?
Processing time will depend on the completeness of the forms and at what point in the cycle the forms are received. Please contact the appropriate Ecology region or local clean air agency for help.
Where do I submit my application?
See notes/comments below.
How long is my program valid?
Once a business is registered, it will remain in the program until it closes or is removed by regulatory change.
What is the appeal process for the program?
If you believe your facility was misclassified under WAC 173-400-100, please contact the appropriate region.
Notes / Comments:

The Ecology regional office or local air authority that manages the Air Quality Registration Program varies by location. Who you contact for help and where you submit your application is based on the locations below.

Counties: Chelan, Douglas, Kittitas, Klickitat, and Okanogan
Department of Ecology
Central Regional Office
1250 W Alder St
Union Gap, WA 98903 509-575-2490

Counties: Adams, Asotin, Columbia, Ferry, Franklin, Garfield, Grant, Lincoln, Pend Oreille, Stevens, Walla Walla, and Whitman
 Department of Ecology
Eastern Regional Office
4601 N Monroe
Spokane WA 99205 509-329-3400

County: San Juan
Department of Ecology
Northwest Regional Office
15700 Dayton Ave N
Shoreline WA 98133 206-594-0000

All other counties are under the jurisdiction local clean air agencies. See the Links section below for Washington Clean Air agencies.

Legal Authority:
Where can I get permitting assistance?
Subject matter expert phone: See notes/comments for contact information
Contact:
Department of Ecology
Air Quality Program
Headquarters
300 Desmond Drive
PO Box 47600
Olympia, WA 98504-7600
Telephone: (360) 407-6800
Fax: (360) 407-7534
Website: https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Air-Quality-permits/Air-operating-permits
Triggering Questions:
  • Do you operate an air contaminant source that emits any of the criteria pollutants above the levels identified in WAC 173-400-102(5) or toxic air pollutants above the levels identified in WAC 173-460-150?
* Permit information last updated 2/13/2025
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