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Washington State Transportation Carbon Reduction Strategy


Washington State Department of Transportation is developing a State Transportation Carbon Reduction Strategy to document the approach Washingtonians are taking to reduce transportation carbon dioxide emissions in the state.

The 2021 Infrastructure Investment and Jobs Act established the Carbon Reduction Program, which provides states with funds for projects that will reduce transportation carbon emissions and have other environmental benefits. This program also requires the state to develop a transportation-focused Carbon Reduction Strategy.


Washington State’s Transportation Carbon Reduction Strategy builds upon the 2021 State Energy Strategy. It will identify and summarize the strategies to reduce transportation carbon emissions being developed and implemented by state agencies, tribes, freight, aviation, ports, and regional and local jurisdiction partners.

Carbon dioxide (CO2) is the primary greenhouse gas emitted from transportation. The Transportation Carbon Reduction Strategy will identify ways to reduce CO2 emissions, including activities such as:

  • Improving the ability to meet daily needs with fewer and shorter trips and alternative modes of transportation
  • Promoting the use of alternative and more fuel-efficient technologies such as low/zero emission fuels and electric vehicles
  • Business operations, fleet and freight operational management and planning
  • Reducing congestion and managing traffic flow in high-volume areas
  • Assessing transportation related land use for sustainable solutions and practices


Washington State’s Transportation Carbon Reduction Strategy is anticipated to be completed in November 2023.

  • October 2022
    WSDOT begins work to develop the State Transportation Carbon Reduction Strategy
  • April 2023
    Initial public outreach and transportation partner engagement completed
  • May 2023
    Carbon reduction analysis complete
  • July 17, 2023
    Public comment period began
  • July 25, 2023
    Informational webinar held – View recording
  • August 16, 2023
    Public comment period completed
  • November 15, 2023
    WSDOT submits final strategy to Federal Highway Administration