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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Pasco Basin Groundwater Subarea

Rulemaking Announcement (WAC 173-135)

https://ecology.wa.gov/wac-173-135_-21-01

Adopted rule language (WAC 173-555) 01/27/15

This is adopted rule language for WAC 173-555 Water Resources Program in the Little Spokane River basin, WRIA 55.

https://ecology.wa.gov/adopted-rule-language-wac-173-555-01-27-15

Rulemaking Announcement (WAC 173-525)

This is a rulemaking announcement (CR-101) for Chapter 173-525 WAC Grays-Elochoman Instream Resources Protection and Water Management Program

https://ecology.wa.gov/rulemaking-announcement-wac-173-525

Rulemaking Announcement (WAC 173-526) 03/02/05

This is a rulemaking announcement (CR-101) for WAC 173- Title; WAC XXX-XXX Title.

https://ecology.wa.gov/rulemaking-announcement-wac-173-526-03-02-05

Rulemaking Announcement (WAC 173-503A; 02/24/04

This is a rulemaking announcement (CR-101) for WAC 173-503A Instream Resources Protection Program Lower and Upper Skagit Water Resources Inventory Area (WRIAs 3 and 4)

https://ecology.wa.gov/rulemaking-announcement-wac-173-503a;-02-24-04

Adopted rule language (WAC 173-166) 04/11/18

This is adopted rule language for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/adopted-rule-language-wac-173-166-04-11-18

CR-101 Form (WAC 173-201A) 08/16/2017

This is a rulemaking announcement (CR-101) to update the recreational use criteria in WAC 173-201A Water Quality Standards for Surface Waters of the State of Washington

https://ecology.wa.gov/cr-101-form-wac-173-201a-08-16-2017

Adopted rule language (WAC 173-167) -7/28/2021

This is adopted rule language for WAC 173-167 Emergency Drought Funding

https://ecology.wa.gov/adopted-rule-language-wac-173-167-07-28-2021

Adopted rule language (WAC 173-501) 05/27/2020

This is the adopted rule language for (WAC 173-501) Instream Resources Protection Program - Nooksack Water Resource Inventory Area (WRIA) 1

https://ecology.wa.gov/adopted-rule-language-wac-173-501-05-27-2020

Rulemaking Emergency Adoption Notice (WAC 173-167) 07/28/2021

This is an emergency rulemaking adoption (CR-103E) for WAC 173-167 Emergency Drought Funding.

https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-167-07-28-202

Proposed rule language (WAC 173-501) 11/19/2019

This is proposed rule language for WAC 173-501 Instream Resources Protection Program - Nooksack Water Resource Inventory Area (WRIA) 1

https://ecology.wa.gov/proposed-rule-language-173-501

Adopted emergency rule language (WAC 173-167) 06/04/2019

This is an emergency adopted rule language for WAC 173-167 Emergency Drought Funding

https://ecology.wa.gov/adopted-rule-language-wac-173-167-06-04-19-1

Proposed rulemaking (WAC 173-566) 01/17/2019

This is the proposed rulemaking announcement (CR-102) Chapter 173-566 Streamflow Restoration Funding

https://ecology.wa.gov/rule-language-wac173-566

Rulemaking Announcement refile (WAC 173-503A; 02/15/05

This is a rulemaking announcement refile (CR-101) for WAC 173-503A Instream Resources Protection Program Lower and Upper Skagit Water Resources Inventory Area (WRIAs 3 and 4)

https://ecology.wa.gov/rulemaking-announcement-refile-wac-173-503a;-02-2

Rulemaking Proposal (WAC 173-526) 04/19/10

This is a rulemaking proposal (CR-102) for WAC 173-526 Chapter 173-526 WAC - Cowlitz Water Resources Management Program - WRIA 26

https://ecology.wa.gov/rulemaking-proposal-wac-173-526-04-19-10

Preliminary draft language (WAC 173-166) 09/01/17

This is Preliminary draft language for WAC 173-166 Emergency Drought Relief

https://ecology.wa.gov/preliminary-draft-language-173-166-wac-09-01-17

Rulemaking proposal (WAC 173-525)

This is a rulemaking proposal (CR-102) for WAC 173-525 Grays-Elochoman Instream Resources Protection and Water Management Program

https://ecology.wa.gov/rulemaking-proposal-wac-173-525

Adopted rule language (WAC 173-557) 01/27/15

This is adopted rule language for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer.

https://ecology.wa.gov/adopted-rule-language-wac-173-557-01-27-15

Ecology's response to Petition to Amend the Instream Flow Rule for the Spokane River & Spokane Valley Rathdrum Prairie (SVRP) Aquifer, (WAC 173-557; 173-555) 01/27/15

Ecology's response to Petition to Amend the Instream Flow Rule for the Spokane River & Spokane Valley Rathdrum Prairie (SVRP) Aquifer, WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/ecology-s-response-to-petition-to-amend-the-instre

Rulemaking proposal continuance (WAC 173-525) 06/16/10

This is a rulemaking continuance for WAC 173-525 Grays-Elochoman Instream Resources Protection and Water Management Program

https://ecology.wa.gov/rulemaking-proposal-continuance-wac-173-525-06