Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.

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Rulemaking Adoption Notice (WAC 173-187) 6/14/24

This is a rulemaking adoption (CR-103) for WAC 173-187 Financial Responsibility

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-187-6-14-24

Rulemaking Announcement (WAC 173-400; WAC 173-401) 01-18-24

This is a rulemaking announcement (CR-101) for WAC 173-400, General Regulations for Air Pollution Sources and WAC 173-401, Operating Permit Regulation.

https://ecology.wa.gov/rulemaking-announcement-wac-173-400;-wac-173-401-01-18-24

Agenda (WAC 173-400; WAC 173-401) 4-18-24

This is the agenda for the April 18, 2024 stakeholder meeting for Chapter 173-440 WAC, General Regulations for Air Pollution Sources and Chapter 173-401 WAC, Operating Permit Regulation.

https://ecology.wa.gov/agenda-wac-173-400;-wac-173-401-4-18-24

Draft Source Test Manual (WAC 173-400; WAC 173-401) 4-9-24

This is the April 9, 2024 draft of the air quality Source Test Manual.

https://ecology.wa.gov/draft-source-test-manual-wac-173-400;-wac-173-401-4-9-24

Draft rule language (WAC 173-400) 3-18-24

This is the March 18, 2024 draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-rule-language-wac-173-400-3-18-24

Draft rule language (WAC 173-401) 3-18-24

This is the March 18, 2024 draft rule language for Chapter 173-401 WAC, Operating Permit Regulations.

https://ecology.wa.gov/draft-rule-language-wac-173-401-3-18-24

Presentation (WAC 173-400; WAC 173-401) 5-15-24

This is a presentation for the May 15, 2024 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources and Chapter 173-401 WAC, Operating Permit Regulation.

https://ecology.wa.gov/presentation-wac-173-400;-wac-173-401-5-15-24

CCA Funds Reporting Rulemaking Public Hearing I

Presentation deck for the June 5th and 13th CCA funds reporting rulemaking public hearings

https://ecology.wa.gov/presentation-wac-173-446b-6-5-24

Listening Session: Liquid Fuels and Mass Balance Accounting

.pdf presentation for June 12, 2024 listening session on liquid fuels and mass balance accounting

https://ecology.wa.gov/presentation-wac-173-424-6-12-24

Proposal Notice - CR 102 form

CR 102 for WAC 173-441, 446

https://ecology.wa.gov/rulemaking-proposal-wac-173-441;-wac-173-446-6-27-24

Draft proposed rules changes to 173-441 WAC

.pdf of draft rule changes for WAC 173-441

https://ecology.wa.gov/draft-rule-language-173-441-wac-7-1-24

Draft proposed rules changes to 173-446 WAC

.pdf of draft rule changes for WAC 173-446

https://ecology.wa.gov/draft-rule-language-173-441-wac-7-1-26

6-24-24 Meeting Notes

This document contains the 6-24-24 meeting notes of the Advisory Committee on battery stewardship rulemaking in Washington.

https://ecology.wa.gov/6-24-24-meeting-notes

Cap-and-Invest Linkage Rulemaking Public Meeting

.pdf of July 10 public meeting presentation

https://ecology.wa.gov/presentation-wac-173-441-446-7-10-24

Rulemaking Proposal Extension (WAC 173-201A) 7/11/24

This is a rulemaking proposal extension (CR-102 C) for WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-extension-wac-173-201a-7-11-24

Rule Agenda for July - December 2024

Rule Agenda for July thru December 2024

https://ecology.wa.gov/rule-agenda-for-july-dec-2024

CFS Draft Rule - Changes Summary

Summary of proposed changes to WAC 173-424

https://ecology.wa.gov/draft-rule-changes-summary-wac-173-424-8-30-24

Draft rule language (173-424-800 - 173-424-850)

Summary of proposed changes to WAC 173-424-800

https://ecology.wa.gov/draft-rule-language-173-424-800-173-424-850

Rulemaking Overview (WAC 173-18; WAC 173-20; WAC 173-22; WAC 173-26; WAC 173-27)

This is a rulemaking overview for WAC 173-18; WAC 173-20; WAC 173-22; WAC 173-26; WAC 173-27

https://ecology.wa.gov/rulemaking-overview-wac-173-18;-wac-173-20;-wac-173-22;-wac-173-26;-wac-173-27

Rulemaking Proposal (WAC 173-201A) 09/17/2024

This is a rulemaking proposal (CR-102) for Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/rulemaking-proposal-wac-173-201a-09-17-2024