Regulations & Permits

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

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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 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
Columbia County Agricultural Burn Zone Map
Map for agricultural burn zones in Columbia County
https://ecology.wa.gov/columbia-ag-burn-zone-map
Eastern Washington Agricultural Burn Zone Map
Map for agricultural burn zones in Eastern Washington
https://ecology.wa.gov/eastern-washington-agricultural-burn-zone-map
Franklin County Agricultural Burn Zone Map
Map for agricultural burn zones in Franklin County
https://ecology.wa.gov/franklin-ag-burn-zone-map
Grant County Agricultural Burn Zone Map
Map for agricultural burn zones in Grant County
https://ecology.wa.gov/grant-ag-burn-zone-map
Walla Walla County Agricultural Burn Zone Map
Map for agricultural burn zones in Walla Walla County
https://ecology.wa.gov/walla-walla-ag-burn-zone-map
Whitman County Agricultural Burn Zone Map
Map for agricultural burn zones in Whitman County
https://ecology.wa.gov/whitman-ag-burn-zone-map
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
Washington Department of Information Services Data Center - Technical Support Document for Health Impact Assessment
Technical Support Document for Health Impact Assessment (Second Tier Review) for Washington Department of Information Services Data Center, 9/16/10
https://ecology.wa.gov/finaldistier2-09-16-2010
Blackrock-Sabey Data Centers - Technical Support Document for Health Impact Assessment
Technical Support Document for Health Impact Assessment (Second Tier Review) for Blackrock and Sabey Data Centers, 10/5/10
https://ecology.wa.gov/tier2-tsd-blackrock-sabey-cl100510
Dell Data Center - Health Impact Assessment letter
Health Impact Assessment (Second Tier Review) Letter for Dell Data Center, 6/10/11
https://ecology.wa.gov/delltier2-approvalletter
Dell Data Center - Technical Support Document for Notice of Construction permit
Technical Support Document for Notice of Construction permit for Dell Data Center, 6/9/11
https://ecology.wa.gov/dellquincy-noc-tsd-final
Quincy Air Quality Maps
Maps of Quincy air quality before and after Microsoft Columbia Data Center permit (from 12/13/10 community forum), 12/10
https://ecology.wa.gov/maps-of-quincy-air-quality
Microsoft Columbia Data Center - Notice of Construction permit
Notice of Construction permit for Microsoft Columbia Data Center, 10/26/10
https://ecology.wa.gov/msn-order10aq-e374
Microsoft Columbia Data Center - Technical Support Document for Health Impact Assessment
Technical Support Document for the Health Impact Assessment (Third Tier Review) for Microsoft Columbia Data Center, 8/20/10
https://ecology.wa.gov/ms-tier3-doc
Microsoft Columbia Data Center - Technical Support Document for Notice of Construction permit
Technical Support Document for Notice of Construction permit for Microsoft Columbia Data Center, 8/12/10
https://ecology.wa.gov/msnexpand2010-tsd-8-4
Yahoo Data Center - Notice of Construction permit
Notice of Construction permit for Yahoo Data Center, 3/28/11
https://ecology.wa.gov/yahoo-ord-11aq-e399
Yahoo Data Center - Technical Support Document for Health Impact Assessment
Technical Support Document for Health Impact Assessment (Third Tier Review) for Yahoo Data Center, 2/8/11
https://ecology.wa.gov/yahoo-tier3-tsd-2-8
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