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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Cannabis Lab Report

Overview of Ecology's 2019 report to the Legislature on the state's cannabis lab accreditation program.

https://ecology.wa.gov/cannabis-lab-report-overview

2023-GHGreport-Instructions

Instructions for completing your 2023 GHG report

https://ecology.wa.gov/2023-state-agency-ghg-report-instructions

Biosolids Sampling and Analysis Plan Template

A document template for use in developing a biosolids sampling and analysis plan.

https://ecology.wa.gov/biosolids-sampling-and-analysis-plan

Frequently Asked Questions: Periodic Review of Shoreline Master Programs

Answers to frequently asked questions for local governments conducting periodic reviews of their shoreline master programs.

https://ecology.wa.gov/faqs-periodic-review-of-shoreline-master-programs

Children's Safe Products Act Reporting Contaminants

Clarification on reporting contaminants under the Children's Safe Products Act. This includes manufacturing control programs and due diligence.

https://ecology.wa.gov/children-s-safe-products-act-reporting-contaminant

Summary of changes

Summary of changes being made to the 2019 general permit

https://ecology.wa.gov/ffp-permit-modification-summary-of-changes

Attachment 2: Health permitting conditions

RADIOACTIVE AIR EMISSIONS LICENSE

https://ecology.wa.gov/attachment-2-health-permitting-conditions

Continued Response Actions to Partial Collapse of PUREX Tunnel 1

Due to the continued immediate threat to human health and the environment posed by the instability of PUREX Tunnel 1, Ecology approves grouting of PUREX Tunnel 1 as an interim stabilization measure.

https://ecology.wa.gov/20170608purexgroutresponse

Final Rule Chapter 173-350 WAC AO# 13-08

This is the final rule language adopted on August 1, 2018

https://ecology.wa.gov/final-rule-chapter-173-350-wac

Grant scope of work template

Template for state grants to local governments to complete their required shoreline program periodic reviews.

https://ecology.wa.gov/grant-scope-of-work-template

Biosolids Storage Construction Approval - North Ranch

Ecology final approval letter for construction of biosolids storage facility.

https://ecology.wa.gov/northranchbsstorageconstructionapproval

Amended Administrative Order Docket #15419 amending Order Docket #14156

This amended order adds PUREX Tunnel 2 to the scope of Corrective Action 3 and provides additional time for USDOE-RL and CHPRC to complete Corrective Action 3.

https://ecology.wa.gov/20170915purexamendedorder

SEPA Response to Public Comments - North Ranch`

Documentation of Ecology and Mason County response to public comments re new biosolids facility construction by Bio Recycling

https://ecology.wa.gov/northranchseparesponsepubliccomments

Agreed Order 7273

The Pollution Control Hearings Board (PCHB) issued a ruling on January 5, 2011 that the Agreed Order #7273 entered in between Ecology and Clark County is unlawful

https://ecology.wa.gov/agreedorder7273

Modified Permit draft

2019 modified general permit - draft version open for comment

https://ecology.wa.gov/ffpmodifiedpermit

U.S. Oil Refinery

We regulate water and hazardous waste at the U.S. Oil and Refining Co. oil refinery in Tacoma.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/us-oil-refining

Specialty Minerals, Longview

We regulate water and hazardous waste at the Specialty Minerals chemical plant in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/specialty-minerals-longview

401 Water Quality Certifications for hydropower licenses

We work with the Federal Energy Regulatory Commission (FERC) licensing process for hydropower dams.

https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/certifications-for-hydropower-licenses

Matheson Tri-Gas, Anacortes

We regulate water and hazardous waste activities at the Linde hydrogen plant in Anacortes.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/matheson-anacortes

Municipal stormwater permit compliance assurance program

We use a proactive approach to ensuring the permits are implemented and effective.

https://ecology.wa.gov/regulations-permits/compliance-enforcement/municipal-stormwater-compliance-assurance-program