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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Business waste
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This is the CR-101 rescinded notice for WAC 173-305.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
Dangerous waste reporting requirements
Learn about dangerous waste reports, and how to notify us of dangerous waste activities.
https://ecology.wa.gov/regulations-permits/reporting-requirements/dangerous-waste-reporting-requirements
Financial assurance types
Different types of facilities must provide different types of financial assurance.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dispose-recycle-or-treat/financial-assurance/types
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
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
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
Step one: Get ready to designate
Learn what you need to start designating your waste.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/get-ready-to-designate
Step two: Is it exempt or excluded?
Determine if your waste is excluded from the dangerous waste regulations.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/is-it-exempt-or-excluded
Step three: Is it listed?
Determine if your waste is on the F, K, P, or U lists in the regulations.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/is-it-listed
Step four: What are the hazards (characteristics)?
Determine if your waste is ignitable, corrosive, reactive, or toxic.
https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/what-are-the-hazards-characteristics
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