Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

Regulations & Permits icon

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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Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

Regulations & Permits icon

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.

See more about this collection...
TransAlta Power Plant
The TransAlta agreement lowers harmful air pollutants from Washington's only coal-fired power plant.
https://ecology.wa.gov/Regulations-Permits/Compliance-enforcement/TransAlta
VW Final Executed Trust Agreements
United States notice of final trust agreement for VW federal settlement.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/VW/VWFinalExecutedTrust-Agreements
2017 VW affected vehicles registered in Washington.
The text version for the map showing where, by percentage, the affected cars are registered in Washington.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/VW/2017AffectedVWCars-alt
2017 VW Diesel NOx By Census
An Excel file that shows 2017 Diesel NOx pollution by census tract.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/VW/2017VWDieselNOxByCensus
VW settlement funds distribution
An image showing how the VW settlement funds will be distributed
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/VW/20190205VWsettlementfundsdistribution-alt
Overview of compliance & enforcement at Ecology
View the compliance and enforcement authority we have, and what actions we have recently taken.
https://ecology.wa.gov/Regulations-Permits/Compliance-enforcement/Overview-of-compliance-enforcement
Notice of construction permit
Businesses must get a permit before installing or changing a source of air pollution.
https://ecology.wa.gov/Regulations-Permits/Permits-certifications/Air-Quality-permits/Notice-of-Construction-permit
Volkswagen (VW) Nitrogen Oxides Emissions in Washington-alt
The text version of the map where the nitrogen oxides emissions can be found in Washington.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/VW/2017VWNitrogenOxideEmissions-alt
Technical Support Document (Amended) - Asphalt Plants
Amended technical support document for general order for portable and stationary asphalt plants
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/GOA/20110418AsphaltPlantsTechSupport
Wood-Fired Hydronic Heaters Certified in Washington
List of wood-fired hydronic heaters that meet Washington standards
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Smoke-fire/20170427HydronicHeaters
Wood-Fired Furnaces Certified in Washington
List of wood-Fired Furnaces that meet Washington standards
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/Smoke-fire/20161215WoodFurnaces
2017 affected Volkswagen (VW) registered vehicles in Washington
Top Washington counties with registered 2.0 and 3.0 liter diesel Volkswagen (VW) vehicles
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/VW/2017VWRegisteredCars
Areas affected by nitrogen oxides emissions in Washington
Map of nitrogen oxides emissions from diesel Volkswagen (VW) vehicles in Washington
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/VW/2017VWDieselNOx
Pacific Northwest Volkswagen (VW) Zero-Emissions Vehicle (ZEV) Investment Proposal
Investment proposal for Pacific Northwest Volkswagen (VW) Zero-Emissions Vehicle (ZEV)
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/VW/20161223PNWZEVInvestmentProposal
TransAlta Best Available Retrofit Technology (BART) order, 6/18/10
This is the TransAlta Best Available Retrofit Technology (BART) order, 6/18/10.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/TransAlta/TASignedBARTOrder
TransAlta Best Available Retrofit Technology (BART) order, revised, 12/13/11
This is the first revised TransAlta Best Available Retrofit Technology (BART) order, 12/13/11.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/TransAlta/TransAltaRevisedBARTCO12-13-11
May 25, 2010 TransAlta agreement
This is the May 25, 2010 agreement between Ecology and TransAlta for the TransAlta power plant.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/TransAlta/Transaltasignedagreement
TransAlta Memorandum of Agreement (MOA), 12/23/11
This is the Memorandum of Agreement (MOA) for TransAlta, 12/23/11.
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/TransAlta/TransAltasignedMOU
Infrastructure State Implementation Plan for 1997 Ozone Standard
State Implementation Plan Certification for the 1997 8-Hour Ozone Standard
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/SIP/InfrastructureSIP1997OzoneFinal2
Benton Clean Air Agency General Air Quality Rules
Including Benton Clean Air Agency rules into the State Implementation Plan
https://ecology.wa.gov/Asset-Collections/Doc-Assets/Air-quality/SIP/BentonCombinedFilesSubmittal
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