Congestion Mitigation and Air Quality
The CMAQ program provides federal funding for transportation projects and programs to help meet the requirements of the Clean Air Act.
Congestion Mitigation and Air Quality (CMAQ) funding is available to reduce congestion and improve air quality for areas that do not meet the National Ambient Air Quality Standards for ozone, carbon monoxide, or particulate matter (PM) (nonattainment areas) and for former nonattainment areas that are now in compliance (maintenance areas). A nonattainment area is an area considered to have air quality worse than the National Area Air Quality Standards as defined in the federal Clean Air Act Amendments.
Funds are allocated to the following Metropolitan Planning Organizations (MPOs): Puget Sound Regional Council, Southwest Washington Regional Transportation Council, Spokane Regional Transportation Council, Thurston Regional Planning Council, and Yakima Valley Conference of Governments. By agreement of these MPOs, allocations are calculated using distribution percentages from 2012. In addition to this distribution, the Puget Sound Regional Council also receives a set-aside allocation of PM2.5 funds.
Infrastructure Investment and Jobs Act/Bipartisan Infrastructure Law (IIJA/BIL) CMAQ - (federal funding)
Fixing America's Surface Transportation (FAST) Act CMAQ - (federal funding)
- Final FFY 2021 (PDF 143KB)
- Final FFY 2020 (PDF 92KB)
Redistributed OA Summary (PDF 154KB)
- Final FFY 2019 (PDF 85KB)
- Final FFY 2018 (PDF 84KB)
The federal bill continues to require WSDOT to report to FHWA annually on CMAQ project obligations and their associated air quality benefits. Data from this reporting is available for viewing in the CMAQ Public Access System at: https://fhwaapps.fhwa.dot.gov/cmaq_pub/
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