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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Information for air monitoring professionals
Standard operating procedures, quality assurance plans, and monitoring guidance for air monitoring professionals.
Aquatic weed control technical assistance
We provide advice on identifying, monitoring, and managing invasive freshwater aquatic plants.
Best Achievable Protection for spill response
Best Achievable Protection (BAP) is training, operations, and technologies for successful responses.
Better Brakes Law - guidance for manufacturers
Guidance for manufacturers on Washington's Better Brakes regulations.
Dam construction & modification guidance
We provide guidance and technical notes for dam construction and modification.
Dam operation & maintenance guidance
We provide guidance to assist dam owners with operations and maintenance.
Dangerous waste guidance
Businesses in Washington are required to follow the state Dangerous Waste Regulations.
E-Cycle WA guidance and reports
This page includes E-Cycle WA frequently asked questions and annual reports.
Buying green - sustainable purchasing
Guidance for state agencies, local governments and businesses on how to buy green products.
Frequently flooded areas: Critical Areas Ordinance
Frequently flooded areas are covered by Critical Areas Ordinances promoting safety from floods.
Marijuana licensing and the environment
Environmental permits may be required for marijuana growers and processors.
Online cleanup guide for homeowners and small businesses
An online cleanup guide for homes and small business properties that might be contaminated.
Moderate risk waste facility guidance
Regulatory information and guidance for county moderate risk waste facilities.
Municipal water law
We help regulate municipal water suppliers to ensure a safe and reliable drinking water supply.
Oil spill drills
We require oil spill drills to test and improve industry contingency plans.
State-approved contingency plan holders
We review and approve oil spill contingency plans for facilities, pipelines, vessels, and railroads.
Financial responsibility for oil spills
Tank vessels are required to have financial responsibility to pay for costs & damages from spills.
Preventing hazardous waste & pollution
We have tools and resources to help your business prevent waste and pollution at the source.
Learning from incidents and spills
We learn from incidents and spills through investigations and share what we learn with others.
EPA guidance on managing moderate risk waste
U.S. Environmental Protection Agency regulatory guidance on common moderate risk waste topics.
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