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

Air Operating Permit Program Workload Model for Fiscal Years 2020 and 2021

This is the workload analysis and budget report for the Air Operating Permit Program for Fiscal Years 2020 and 2021, 11/10/20.

https://ecology.wa.gov/202010airoperatingpermit-reportfy20

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

Wood-Fired Furnaces Certified in Washington

List of Wood-fired Furnaces Meeting Washington's Emission Standards

https://ecology.wa.gov/20180105woodfurnaces

Wood-Fired Hydronic Heaters Certified in Washington

List of wood-fired hydronic heaters that meet Washington standards

https://ecology.wa.gov/20170427hydronicheaters

Wood-Fired Furnaces Certified in Washington

List of wood-Fired Furnaces that meet Washington standards

https://ecology.wa.gov/20161215woodfurnaces