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Comment Period

Spokane Regional Clean Air Agency Rule Change

State Implementation Plan (SIP)

Aug. 11, 2020 - Sept. 26, 2020, 11:59 p.m.

Ecology is proposing to submit a revision of Washington’s air quality State Implementation Plan (SIP) to EPA.

This proposed revision would update parts of Spokane Regional Clean Air Agency's rule that are in the State Implementation Plan.

Document for review:

Tentative public hearing

if requested by Sept. 16, 2020
Sept. 21, 2020, 11 a.m. online

You can request a public hearing by using the online comment form linked below. If we do not receive a request for a public hearing, we will cancel it and update this page.


State Implementation Plan (SIP) is a general cleanup plan for air.  It describes how Washington carries out, maintains, and enforces national air quality standards.

The State Implementation Plan explains how Washington will lower air pollution from sources like transportation, wood smoke, and industry. Sections of the plan are customized to meet regional air quality needs.

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Comment online

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Comment by mail

Jacob Berkey
Washington Department of Ecology
Air Quality Program
P.O. Box 47600
Olympia, WA 98504-7600
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Jacob Berkey
Environmental Planner

To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.