Regulations & Permits

Learn about the air monitoring network that measures local air quality conditions and see the map interface for near real-time data.

We have online tools and guidance to help you clean up petroleum-contaminated sites.

We have online tools and statistical packages to help you clean up contaminated sites.

Learn more about how to manage noise pollution.

The State Implementation Plan is an overarching plan to keep air clean.

We require Class 2 mobile oil-handling facilities in Washington to have a spill response plan.

Oil-handling operations must have contingency plans describing how they would respond to oil spills.

GRPs, a Northwest Area Contingency Plan tool, guide early, localized actions when oil spills happen.

Operations manuals help prevent spills during the transfer, storage, and handling of oil.

Safe and effective reports establish conditions for protecting open water with oil containment boom.

Oil spill prevention plans reduce the risk of oil spills at large refineries and marine terminals.

Policies and guidance interpret the MTCA cleanup law and help you clean up contaminated sites.

Washington state’s management plan for solid waste and toxic materials.

Standard operating procedures, quality assurance plans, and monitoring guidance for air monitoring professionals.

We provide advice on identifying, monitoring, and managing invasive freshwater aquatic plants.

Best Achievable Protection (BAP) is training, operations, and technologies for successful responses.

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

This policy helps us determine how contaminated soil and groundwater is managed and disposed.

We provide guidance and technical notes for dam construction and modification.

We provide guidance to assist dam owners with operations and maintenance.