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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7Q10 for High Flows on the Columbia/Snake Rivers

Guidelines for arriving at 7Q10 for dissolved gas standards.

https://ecology.wa.gov/7q10forhighflows

2022 Streamflow Restoration competitive grant application instructions

Step by step instructions for filling out the EAGL application for WRSRP 2020 Competitive Grant Program.

https://ecology.wa.gov/application-instructions

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

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

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

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

2012 Instream Flow Recommendations for the Spokane River (WAC 173-557; 173-555) 01/27/15

2012 Instream Flow Recommendations for the Spokane River - Hal Beecher, WDFW Instream Flow Biologist May 31, 2012 WAC 173-557; 173-555 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/2012-instream-flow-recommendations-for-the-spokane

Assessment of Areal Recharge (WAC 173-557; 173-555) 01/27/15

Assessment of Areal Recharge to the Spokane Valley-Rathdrum Prairie Aquifer, Spokane County, Washington, and Bonner and Kootenai Counties, United States Geological Survey, Scientific Investigations Report 2007–5038 WAC 173-557; 173-555 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/assessment-of-areal-recharge-wac-173-557;-173-555

Compilation of Geologic, Hydrologic, and Ground-Water Flow Modeling (WAC 173-557; 173-555) 01/27/15

Compilation of Geologic, Hydrologic, and Ground-Water Flow Modeling Information for the Spokane Valley—Rathdrum Prairie Aquifer, Spokane County, Washington, and Bonner and Kootenai Counties, Idaho, United States Geological Survey, WAC 173-557; 173-555 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/compilation-of-geologic-hydrologic-and-ground-wa

2018WAG993011AnnualRpt

2018 Z. Japonica Coast Seafood Annual Report

https://ecology.wa.gov/2018wag993011annualrpt

Chapter 173-167 WAC: Emergency Drought Funding

Adopted rule language for Chapter 173-167 WAC: Emergency Drought Funding

https://ecology.wa.gov/adopted-rule-language-wac-173-167-07-24-2023

2024 CR-103 Emergency Adopted rule

Emergency Drought declaration Adopted rule for 2024

https://ecology.wa.gov/rulemaking-emergency-adoption-notice-wac-173-167-07-24-2024

2024 Drought Rule Language

Rule language for the 2024 Emergency Drought Declaration, to accompany the CR-103 adopted rule

https://ecology.wa.gov/adopted-rule-language-wac-173-167-04-16-2024

Adopted emergency rule language (WAC 173-167) 08/14/24

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

https://ecology.wa.gov/adopted-emergency-rule-language-wac-173-167-08-14-24

Adopted Rule Language (WAC 173-167) 12/11/24

This is the adopted rule language for Chapter 173-167 WAC (AO 24-04)

https://ecology.wa.gov/adopted-rule-language-wac-173-167-12-11-24