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Comment period

Chapters 173-507, 173-508, 173-513, 173-514, and 173-515 WAC

Proposed Rulemaking

Nov. 18, 2025, 12 a.m. - Jan. 18, 2026, 11:59 p.m. PT

This is the public involvement page for this rulemaking.

Comments due: Jan. 18, 2026– 11:59 p.m.

Submit by: Online, mail, or at the public hearing.

Visit the rulemaking page for documents.

Background

We write rules to implement and enforce state and federal environmental laws and rules.  Ecology follows a three-phase process for rulemaking:

  1. Announcement and development
  2. Proposal
  3. Adoption

For each phase of the process, we update the rulemaking web page and notify interested parties. We also file notice in the Washington State Register. To learn more about Ecology’s rulemaking process, read the Frequently Asked Questions.

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Comment online

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Comment by mail

Danielle Gallatin
Department of Ecology Water Resources Program
PO BOX 47600
Olympia, WA 98504-760
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Related events

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Questions

Danielle Gallatin
Rulemaking Lead
danielle.gallatin@ecy.wa.gov
425-516-3012

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.