Regulations & Permits

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

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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TransAlta Memorandum of Agreement (MOA), 12/23/11

This is the Memorandum of Agreement (MOA) for TransAlta, 12/23/11.

https://ecology.wa.gov/transaltasignedmou

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/transaltarevisedbartco12-13-11

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/tasignedbartorder

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/transaltasignedagreement

2012 - 2016 Washington Greenhouse Gas Reported Emissions

The Washington Mandatory Greenhouse Gas Reporting Program - Reported Emissions for 2012 - 2016

https://ecology.wa.gov/2012-2016wagreenhousegasreportedemissions

Letter to EPA for Partial Withdrawal of SIP Submittal

Letter to EPA to withdraw part of Prevention of Significant Deterioration Rules into the State Implementation Plan

https://ecology.wa.gov/withdrawalltrnewpsdghgsept52014

The Kent, Seattle, and Tacoma Second 10‐Year Limited Maintenance Plan for Particulate Matter (PM10)

State Implementation Plan Revision for a Second 10-Year Particulate Matter (PM10) Maintenance Plan for three Puget Sound areas

https://ecology.wa.gov/seattlekenttacomalimitedmaintenanceplanpm10

Infrastructure State Implementation Plan for 1997 Ozone Standard

State Implementation Plan Certification for the 1997 8-Hour Ozone Standard

https://ecology.wa.gov/infrastructuresip1997ozonefinal2

Vancouver Second 10-Year Maintenance Plan for Carbon Monoxide

State Implementation Plan Revision for a Second 10-Year Carbon Monoxide Maintenance Plan for Vancouver

https://ecology.wa.gov/vancouverco

2012-2016 Washington's Mandatory Greenhouse Gas Reported Emissions

This report shows greenhouse gas emissions reported to us under the state mandatory reporting program.

https://ecology.wa.gov/2012-2016wagreenhousegasreportedemissions-f2a2b89e80ce6dd5c1530dae57fbe534

Air quality general order for auto body shops

This is the air quality general order for auto body shops.

https://ecology.wa.gov/20080425gobodyshops

Technical support document supplement for air quality general order for auto body shops.

This is the technical support document supplement for the air quality general order for auto body shops.

https://ecology.wa.gov/200808bodyshopstsd

Air quality general order for asphalt plants

This is the air quality general order for asphalt plants.

https://ecology.wa.gov/20110418goasphaltplants

Technical support document for the air quality general order for asphalt plants

This is the technical support document for the air quality general order for asphalt plants.

https://ecology.wa.gov/20110418asphaltplantstsd

Air quality general order for concrete batch plants

This is the air quality general order for concrete batch plants.

https://ecology.wa.gov/20111206goconcretebatchplants

Technical support document for air quality general order for concrete batch plants, December 6, 2011

This is the technical support document for the air quality general order for concrete batch plants, December 6, 2011.

https://ecology.wa.gov/20111206concretebatchplantstsd

Air quality general order for dry cleaners, December 6, 2011

This is the air quality general order for dry cleaners, December 6, 2011.

https://ecology.wa.gov/20111206gorockcrushers

Technical Support Document for air quality general order for rock crushers, December 6, 2011

This is the technical support document for the air quality general order for rock crushers, December 6, 2011.

https://ecology.wa.gov/20111206rockcrusherstsd

Technical support document for air quality general order for dairy manure anaerobic digesters

This is the technical support document for the air quality general order for dairy manure anaerobic digesters.

https://ecology.wa.gov/201203dairydigesterstsd

Air quality general order for dairy manure anaerobic digesters

This is the air quality general order for dairy manure anaerobic digesters.

https://ecology.wa.gov/20120421godairydigesters