Regulations & Permits

We oversee many state and federal laws designed to protect Washington's land, air, and water. Rules and regulations that direct state agencies, local governments, businesses, and others on how to comply with relevant laws are compiled in the Washington Administrative Code. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.
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Dangerous waste guidance
Businesses in Washington are required to follow the state Dangerous Waste Regulations.
Small quantity generators
Your business may be a small quantity generator of dangerous waste.
Find a hazardous waste service provider
Search for waste service providers. You must ensure proper disposal of your dangerous waste.
Step one: Get ready to designate
Learn what you need to start designating your waste.
Hazardous Waste Facility Search Tool
Use this tool to access public records from regulated dangerous waste sites in Washington. This data comes from TurboWaste, Washington’s dangerous waste reporting tool.
Bonneville Power Administration TSD permit (PDF)
A permit issued in 2011 allowing the Bonneville Power Administration to treat, store and dispose of dangerous waste.
Hazardous waste and used oil facilities (XLSX)
This is the CSV file that the hazardous waste facilities map is built on.
Debe Inspeccionar los Contenedores de Desechos Peligrosos - Plain text
This is the plain text version of the Spanish poster found at https://fortress.wa.gov/ecy/publications/SummaryPages/0804015ES.html
Managing Dangerous Laboratory Waste plain text
This is the plain text version of the poster found at https://fortress.wa.gov/ecy/publications/SummaryPages/1504005.html.
Chemotherapy Waste Flowchart (PDF)
This chart helps you determine which rules to follow when disposing of chemotherapy dangerous waste.
Controlled Substances Waste Flowchart (PDF)
This chart helps you determine which rules to follow when disposing of controlled substance dangerous waste.
TurboWaste User Guide
Step-by-step instructions for using the TurboWaste application with pictures.
TurboWaste Data Import Guide
Instructions for importing dangerous waste information to TurboWaste.
Biosolids Storage Construction Approval - North Ranch
Ecology final approval letter for construction of biosolids storage facility.
Rulemaking Proposal 173-303 08/09/18
This is a rulemaking proposal (CR-102) for WAC 173-303 Dangerous Waste Regulations
Rulemaking Proposed Language 173-303 08/09/18
This is proposed rule language for WAC 173-303 Dangerous Waste Regulations
SEPA Checklist WAC 173-303
This is the SEPA Checklist for WAC 173-303 Dangerous Waste Regulations
SEPA Determination of Nonsignificance WAC 173-303
This is the SEPA Determination of Nonsignificance for WAC 173-303 Dangerous Waste Regulations
Citation List WAC 173-303
This is the citation list for for WAC 173-303 Dangerous Waste Regulations
CR-103 dangerous waste regulations
CR-103P for Chapter 173-303 WAC Dangerous Waste Regulations
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