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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Bonneville Power Administration TSD permit (PDF)

A permit issued in 2011 allowing the Bonneville Power Administration to treat, store and dispose of dangerous waste.

https://ecology.wa.gov/bonneville-power-administration-tsd-permit

2020 Dangerous Waste Regulations

Washington State's Dangerous Waste regulations, Chapter 173-303

https://ecology.wa.gov/2019-dw-regs

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This is the CR-101 rescinded notice for WAC 173-305.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

Pharmaceutical waste management options for eligible facilities

Facilities that meet certain criteria can use pharmaceutical waste management options.

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

Generator category

Businesses that generate dangerous waste must determine their generator category each month.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/generator-category

Dangerous waste containers

Keep your workers safe by keeping your dangerous waste containers closed and in good condition.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/proper-containment

Accumulation

Learn more about on-site dangerous waste accumulation time limits and restrictions.

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

Recordkeeping

Learn what records your business must keep if you generate dangerous waste.

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

Small quantity generators (SQGs)

Learn about the benefits and rules for dangerous waste small quantity generators (SQGs).

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/generator-category/small-quantity-generators

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

Dangerous waste treatment by generator

Learn how your business may be allowed to treat your own dangerous waste on-site.

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

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

Dangerous waste guidance

Businesses in Washington that generate dangerous waste must follow the Dangerous Waste Regulations.

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

Washington state-only criteria

Learn how to determine if your waste designates for Washington state-only criteria.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/check-washington-state-only-criteria

Counting dangerous waste

Learn how to count your business's dangerous waste and determine your generator category.

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