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 Announcement (WAC 173-187) 4/17/23

This is a rulemaking announcement (CR-101) for WAC 173-187 Financial Responsibility

https://ecology.wa.gov/rulemaking-announcement-wac-173-187-4-17-23

Rulemaking Announcement (Tug Escort Rulemaking - Chapter 363-116 WAC) 02/22/23

This is a rulemaking announcement (CR-101) for Tug Escort Rulemaking (Chapter 363-116 WAC)

https://ecology.wa.gov/rulemaking-announcement-tug-escort-rulemaking-chap

Adopted rule language for WAC 173-186, Oil Spill Contingency Plan - Railroad 12/12/2019

Rulemaking Adoption rule language (WAC 173-186) holder text

https://ecology.wa.gov/rulemaking-adoption-rule-language-wac-173-186-ho

Rulemaking Adoption Notice (WAC 173-910) 08/23/16

This is a rulemaking adoption (CR-103) for WAC 173-910 Mecury-Containing Lights Product Stewardship Program.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-910-08-24-16

Rulemaking Announcement (WAC 173-166) 08/09/17

This is a rulemaking announcement (CR-101) for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/rulemaking-announcement-wac-173-166-08-09-17

Rulemaking Adoption Notice (WAC 173-501) 05/27/2020

Rulemaking Adoption Notice (WAC 173-501) Instream Resources Protection Program - Nooksack Water Resource Inventory Area (WRIA) 1

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-501-05-27-202

Rulemaking Announcement (WAC 173-201A) 05/08/19

This is a rulemaking announcement (CR-101) for WAC 173-201A

https://ecology.wa.gov/rulemaking-announcement-wac-173-201a-05-08-19

Rulemaking Announcement (WAC 173-03) 2/28/17

This is a rulemaking announcement (CR-101) for WAC 173-03 Public Records

https://ecology.wa.gov/rulemaking-announcement-wac-173-03-2-28-17

Rulemaking Announcement (WAC 173-201A) 06/12/19

This is a rulemaking announcement (CR-101) for WAC 173-201A Variances

https://ecology.wa.gov/rulemaking-announcement-wac-173-201a-06-12-19

Rulemaking Announcement (WAC 173-180; WAC 173-184) 08/03/21

This is a rulemaking announcement (CR-101) for WAC 173-180 Facility Oil Handling Standards; WAC 173-184 Vessel Oil Transfer Advance Notice and Containment Requirements.

https://ecology.wa.gov/rulemaking-announcement-wac-173-180;-wac-173-184

Rulemaking Adoption Notice (WAC 173-446A) 06-01-22

This is a rulemaking adoption notice (CR-103) for Chapter 173-446A WAC, Criteria for Emissions-Intensive, Trade-Exposed Industries.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-446a-06-01-22

Rulemaking Adoption Notice (WAC 173-444) 01/06/21

This is a rulemaking adoption notice for Chapter 173-444 WAC, Clean Energy Transformation Rule.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-444-01-06-21

Rulemaking Adoption Notice (WAC 173-446) 9-29-22

This is a rulemaking adoption notice (CR-103) for Chapter 173-446 WAC, Climate Commitment Act Program.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-446-9-29-22

Rulemaking Announcement (WAC 173-219) June 4, 2014

This is a rulemaking announcement (CR-101) for WAC 173-219 Reclaimed Water

https://ecology.wa.gov/rulemaking-announcement-wac-173-219-06-04-14

Rulemaking Adoption Notice (WAC 173-455; WAC 173-400) 10/25/18

This is a rulemaking adoption notice (CR-103) for WAC 173-455, Air Quality Fee Rule; WAC 173-400, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-455;-wac-173-4

Rulemaking Adoption Notice (WAC 173-460) 11/22/19

This is a rulemaking adoption notice (CR-103) for Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollutants.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-460-11-22-19

Rulemaking Announcement (WAC 173-166) 11/01/23

This is a rulemaking announcement (CR-101) for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/rulemaking-announcement-wac-173-166-11-01-23

Rulemaking Adoption Notice (WAC 173-446) 02/21/24

This is a rulemaking adoption notice for Chapter 173-446 WAC, Climate Commitment Act Program Rule.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-446-02-21-24

Rulemaking Announcement ( 173-905 WAC) 3/19/24

Rulemaking Announcement CR 101

https://ecology.wa.gov/rulemaking-announcement-173-905-wac-;-3-19-24

Rulemaking Adoption Notice (WAC 173-446B)

Rulemaking adoption notice WAC 173-446B

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-446b-10-08-24