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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Spill response plans for Class 2 mobile facilities

We require Class 2 mobile oil-handling facilities in Washington to have a spill response plan.

https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/spill-response-plans-for-mobile-oil-facilities

Technical manuals

Requirements for technical manuals for vessels with contingency plans.

https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/technical-manuals

NOx reductions alt text document

Arrow showing past & current NOx reductions in comparison to our goal and future reductions using VW settlement funds

https://ecology.wa.gov/20200407-noxreductionsarrow-alt

Washington State Climate Resilience Strategy Summary - Chinese

Climate Resilience Strategy Summary in Chinese

https://ecology.wa.gov/chinese-climate-resilience-strategy-summary

Washington State Climate Resilience Strategy Summary - English

Climate Resilience Strategy Summary in English

https://ecology.wa.gov/english-washington-state-climate-resilience-strategy-summary

Washington State Climate Resilience Strategy Summary - Spanish

Climate Resilience Strategy Summary in Spanish

https://ecology.wa.gov/spanish-climate-resilience-strategy-summary

Washington State Climate Resilience Strategy Summary - Vietnamese

Climate Resilience Strategy Summary in Vietnamese

https://ecology.wa.gov/vietnamese-climate-resilience-strategy-summary

Contained-in policy for contaminated soil and groundwater

Learn how to reduce cleanup costs by requesting approval under our contained-in policy.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contained-in-determinations

Water rights and dam safety policies, procedures & guidance

Policies, procedures & guidance guide our water right and dam safety work

https://ecology.wa.gov/regulations-permits/plans-policies/water-rights-dam-safety-policies-procedures-guidan

Cleaning up contamination with model remedies

Model remedies are ways to clean up routine, low-risk contaminated sites under MTCA.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/mtca-model-remedies

2020-21 Project Awards: Chehalis River Basin Aquatic Species Restoration Plan

Descriptive list of state grant awards for aquatic habitat restoration projects in the Chehalis Basin

https://ecology.wa.gov/2020-21-asrp-project-list

2021 Areas of Concern map

2021 map showing areas of concern for criteria pollutants

https://ecology.wa.gov/20210806-aoc-map-alt

Chapter 173-925 WAC

This is the rulemaking page for Chapter 173-925 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-925

Emergency Planning & Community Right-to-Know Act

Overview of Washington's EPCRA program and general reporting requirements.

https://ecology.wa.gov/regulations-permits/reporting-requirements/emergency-planning-community-right-to-know-act

Policies and guidance for site cleanups

Policies and guidance interpret the MTCA cleanup law and help you clean up contaminated sites.

https://ecology.wa.gov/regulations-permits/plans-policies/toxics-cleanup-policies

Empirical demonstrations under MTCA

Empirical demonstrations can show that applicable groundwater cleanup levels aren’t being exceeded.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/empirical-demonstrations-mtca

Spill management teams

Spill management teams are trained personnel who support spill responses.

https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/spill-management-teams

Wildlife response service providers

Wildlife response service providers (WRSP) manage wildlife response activities during an oil spill.

https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/wildlife-response-service-providers

CLARC data tables and other technical information

Download CLARC data tables for information that helps site managers determine cleanup levels.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-clean-up-tools/clarc/data-tables

Environmental impact statement process

Overview about Environmental Impact Statements process under SEPA.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/environmental-impact-statements