Grant Opportunities

We work to match diesel emission reduction projects with grant opportunities.  If you have a project that will reduce diesel emissions, please submit your idea and we will work with you to see what funding might be available.

Project priorities:

  • Large, old engines (preferably older than 2012)
  • Engines that are used often (preferable daily)
  • Engines that operate within areas or close to businesses or communities with high diesel pollution

Grants typically provide incentives similar to rebates that can cover 25 - 60% of the cost-of a diesel vehicle or diesel engine replacement.

If you are interested in collaborating with the Puget Sound Clean Air Agency to fund a project, please fill out the appropriate pre-application and submit to

If you have any questions, please reach out to Beth Carper at 206-689-4057 or

Pre-Application Forms:

Harbor Craft Engine Replacement

Rail Engine Projects

On & Off Road Projects