Chapters 173-400 and 173-401 WAC, General Regulations for Air Pollution Sources
We propose to update two rules:
- Chapter 173-400 WAC, General Regulations for Air Pollution Sources – establishes standards and rules to control and prevent pollution from air contaminant sources
- Rulemaking will update references to an Ecology technical manual used in source testing and certification.
- Chapter 173-401 WAC, Operating Permit Regulation – establishes Washington's air operating permit program to comply with Title V of the federal Clean Air Act.
- Rulemaking will:
- Align with federal regulations.
- Fix an incorrect reference.
- Rulemaking will:
This rulemaking may also:
- Clarify language.
- Improve regulatory requirements for air quality.
Rulemaking timeline
Announcement phase (CR-101)
Filing date:
Jan. 18, 2024
Announcement documents
Rule development phase
Jan. 18, 2024 – Fall 2024Public input & involvement
Public comment period (informal)
April 18, 2024 – May 31, 2024
Comment on the draft rule and the draft source test manual
Comment online.
Ecology's meetings with stakeholders
| Date | Documents | Location |
|---|---|---|
| Thursday April 18, 2024 10 a.m. – 11:30 a.m. |
Agenda Presentation Draft rule language (173-400) Draft rule language (173-401) Draft source test manual |
webinar 1 |
| Wednesday May 15, 2024 10 a.m. – 11:30 a.m. |
Draft source test manual | webinar 1 |
1 Webinar information:
Register for each webinar to get your meeting ID and passcode.
To hear the webinar better or to call in only, use your phone (instead of the computer) to call 253‑215‑8782.
Related links
Contact information
Linda Kildahl
Rulemaking Lead
linda.kildahl@ecy.wa.gov
360-706-3038
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Accessibility
To request ADA accommodation for disabilities, or printed materials in a format for the visually impaired, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831. People with impaired hearing may call Washington Relay Service at 711. People with speech disability may call TTY at 877-833-6341.