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 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

Spokane County's Second 10-Year Limited Maintenance Plan for Carbon Monoxide

State Implementation Plan Revision for Spokane County Second 10-Year Limited Maintenance Plan for Carbon Monoxide

https://ecology.wa.gov/spokaneco

Spokane County's Second 10‐Year Limited Maintenance Plan for Particulate Matter (PM10)Spokane County, Washington Second 10-Year Limited Maintenance Plan for PM10

State Implementation Plan Revision for Spokane County Second 10-Year Limited Maintenance Plan for PM10

https://ecology.wa.gov/spokanepm10second10lmp

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

Questions and Answers - Electric vehicle charging infrastructure along high-traffic corridors

Information on grant opportunities to add electric vehicle charging infrastructure on major transportation corridors in Washington.

https://ecology.wa.gov/20200107-vwfederalcorridorfaq

VW Federal Funds For Ferry

Alternate text for the graphic showing VW federal funds are going towards retrofitting a diesel ferry to electric hybrid

https://ecology.wa.gov/20191022-vwfederalfundsforferry-alt

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

Benton Clean Air Agency General Air Quality Rules

Including Benton Clean Air Agency rules into the State Implementation Plan

https://ecology.wa.gov/bentoncombinedfilessubmittal

State Implementation Plan Revision: Updates to Spokane Regional Clean Air Agency Regulations

State Implementation Plan Revision Updates to Spokane Regional Clean Air Agency Solid Fuel Burning Devices Rule (Regulation I - Article VIII)

https://ecology.wa.gov/finalsipspokane2015

VW Settlement - Q & A EV charging infrastructure at workplaces grants

Electric Vehicle Charging Infrastructure at State and Local Government-Owned Facilities

https://ecology.wa.gov/20191003-workplace-charging-grants

VW federal settlement electric transit bus awards

Text version of Washington map showing where electric transit bus grant awards were dispersed

https://ecology.wa.gov/06122019vwfedelectransitbus

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

VW settlement funds distribution

An image showing how the VW settlement funds will be distributed

https://ecology.wa.gov/20190205vwsettlementfundsdistribution-alt

VW state school bus grant awards

VW state school bus grant awards - text version

https://ecology.wa.gov/20181218schoolbusawardedgrants-alt

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

20181205 Request for info - Public ferries

Request for information for public ferry repower grants

https://ecology.wa.gov/20181205-requestforinfo

2018 School Bus Replacement Preliminary Application Criteria

A criteria supplement to the 2018 Clean School Bus Replacement Application.

https://ecology.wa.gov/2018schoolbusreplacementprelimappcriteria

Vancouver Maintenance Plan for Ozone

State Implementation Plan Revision for Ozone Maintenance Plan for Vancouver

https://ecology.wa.gov/vancouvero3