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 173-305) 09/14/22

This is a rulemaking announcement (CR-101) for WAC 173-305 Hazardous Waste Planning Fee

https://ecology.wa.gov/rulemaking-announcement-wac-173-305-09-14-22

Biosolids Storage Construction Approval - North Ranch

Ecology final approval letter for construction of biosolids storage facility.

https://ecology.wa.gov/northranchbsstorageconstructionapproval

Monthly dangerous waste generation limits

Quantity exclusion limits (QEL) to determine monthly dangerous waste generator category

https://ecology.wa.gov/monthly-generation-limits-plain-text

Adopted rule language (WAC 173-337) 05/31/23

This is adopted rule language for WAC 173-337 Safer Products Restrictions and Reporting

https://ecology.wa.gov/asset-collections-doc-assets-rulemaking-hwtr-wac173-337_-21-01-cr-103-adopted-rule-language-wac-173

WSR 22-19-037

This is the CR-101 rescinded notice for WAC 173-305.

https://ecology.wa.gov/wsr-22-19-037

Rulemaking Announcement (WAC 173-305) 11/22/23

This is a rulemaking announcement (CR-101) for WAC 173-305 Hazardous Waste Planning Fee

https://ecology.wa.gov/rulemaking-announcement-wac-173-305-11-22-23

Print free labels

Free dangerous waste labels you can print from your computer for your business.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/label-dangerous-waste/print-free-labels

Frequently Asked Questions (FAQs) for Chapter 173-303

Frequently asked questions about Chapter 173-303 WAC, Dangerous Waste Regulations.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac173-303-faq

Publication index: Mercury information

List of links to documents related to mercury.

https://ecology.wa.gov/mercury

Publication index: Per- and Poly-fluorinated Alkyl Substances (PFAS)

List of links to documents and posters about PFAS

https://ecology.wa.gov/per-and-poly-fluorinated-alkyl-substances-pfas

Publication index: Polychlorinated Biphenyls (PCBs)

List of links to documents and posters about polychlorinated biphenyls (PCBs)

https://ecology.wa.gov/polychlorinated-biphenyls-pcbs

Hazardous Waste Institutional Memory (IM) Compendium

A reference tool that provides guidance about specific dangerous waste issues. Includes reference memos, letters and other documents written by Ecology staff.

https://ecology.wa.gov/hazardous-waste-institutional-memory-im-compendi

TurboPlan V2 (Pollution Prevention Plan)

(SAW account required)

https://ecology.wa.gov/turboplan-v2-pollution-prevention-plan

Pollution prevention services for businesses

Pollution prevention resources and technical assistance for businesses in Washington.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/pollution-prevention-services

Safer alternatives to toxic chemicals

We provide tools, training, and other resources to help you find alternatives to toxic chemicals.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/safer-alternatives

Air Liquide Hydrogen Plant, Anacortes

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

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/air-liquide

Common types of dangerous waste

Learn how to manage common types of dangerous waste at your business.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste

Dispose, recycle, or treat dangerous waste

Learn how your business can properly dispose, recycle, or treat dangerous waste.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dispose-recycle-or-treat

Alcoa Wenatchee

We regulate the water and hazardous waste at Alcoa's Wenatchee aluminum smelter in Malaga.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/alcoa-wenatchee

Columbia & Cowlitz Railway

We regulate the water and hazardous waste activities at the Columbia & Cowlitz Railway in Longview.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/columbia-cowlitz-railway