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.

Biosolids permitting and forms

We issue permits and regulate biosolids production and use in Washington.

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.

Metering technical information

Find out about meter types, technical requirements, vendors, and installers.

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.

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.