Clean Air Funds

Yolo-Solano AQMD’s Clean Air Funds Program offers grants for projects designed to reduce emissions from mobile sources. Private businesses, non-profit organizations and public agencies are eligible for Clean Air Funds.

Projects that have been awarded Clean Air Funds include:

  • Replacing or retrofitting diesel trucks and off-road equipment that do not qualify for other regional programs
  • New electric or alternative fuel vehicles
  • Design and construction of pedestrian and bicycle facilities
  • Transit projects
  • Public information and education programs

2021 Program Cycle – Now Accepting Applications

The 2021 Clean Air Funds program application period is now OPEN!  

Apply Now

The 2021 Clean Air Funds Program has $400,000 available in funding to provide financial incentives for local projects that reduce emissions from mobile sources of air pollution within the Yolo-Solano Air Quality Management District. Funding will be available at various levels for projects in four qualifying categories: Clean Vehicle Technology, Alternative Transportation, Transit Services, and Public Education. 

The application period will open on March 8, 2021, and close on April 30, 2021, at 4 p.m. 

 The District encourages applications for projects that focus on youth education and embody the theme that “Children are the key to a future with clean air.”

A Webinar for the 2021 Clean Air Fund Program was held on March 25, 2021, at 1 p.m. to discuss the program and answer any questions. The webinar recording and presentation slides are available at the links below.

2021 Clean Air Fund Webinar Recording
2021 Clean Air Fund Webinar Slides

The Clean Air Fund Committee will meet in May to consider the 2021 Clean Air Fund applications.  It is expected that the District’s Governing Board will award grants at the June 2021 Board Meeting.

Questions about the Clean Air Funds program can be directed to Jim Antone, Associate Planner, at or 530-757-3653.


AB 2766, chaptered in 1990, allows air districts to collect $4 on each annual vehicle registration within their borders, one potential use of these funds is to reduce emissions caused by mobile sources. Yolo-Solano AQMD uses a portion of this revenue for the Clean Air Funds, which seeks to enhance the power of each dollar by directing money to the most cost-effective, impactful projects.

Through separate legislation, the air district also receives AB 8 property tax revenue s in the northeastern portion of Solano County. The District uses a portion of these funds in the Clean Air Fund program in Solano County.  Funding levels for the Clean Air Funds program can change each year.

Proposals can be made in one of four categories: clean technologies and low-emission vehicles; alternative transportation; transit; and public education. Yolo-Solano AQMD staff evaluates project proposals based on a number of criteria and makes recommendations to two Board committees: the Yolo Clean Air Funds Committee and the Solano Clean Air Funds Committee. Each committee makes funding recommendations to the full Board, with a final Board vote typically taking place in June. Funds are then allocated for the following fiscal year.

Applicants awarded Clean Air Funds are required to submit a final report to the District one year after project completion.