Puget Sound Regional Council

PSRC has responsibilities under the federal and state Clean Air Acts to ensure Transportation 2040 and the regional Transportation Improvement Program do not impede the region’s efforts to maintain, or improve, air quality. This site will provide information on PSRC’s efforts, as well as information on current air quality issues in the region.

VISION 2040 calls upon the region to reduce its overall production of harmful elements that contribute to climate change, and Transportation 2040 contains a Four-Part Greenhouse Gas Strategy. Details on these and other climate-related programs may be found at the following links:

Air Quality

Vehicle emissions are a significant source of air pollutants regulated by the U.S. Environmental Protection Agency. Areas with a history of elevated pollutant concentrations must demonstrate that vehicle emissions are within a state’s plan for attaining air quality standards. Transportation conformity requirements ensure that PSRC planning activities meet regional air pollution goals.

Climate Change

The transportation sector accounts for nearly half the greenhouse gas (GHG) emissions in Washington State. Addressing transportation sector GHG emissions is a priority for mitigating the impact of climate change and achieving environmental sustainability. PSRC is committed to reducing transportation-related GHG emissions.


Kelly McGourty

Rebecca Frohning


Puget Sound Regional Council • 1011 Western Ave, Suite 500 • Seattle, WA 98104 • 206-464-7090