California Air Resources Board

The Carl Moyer Memorial Air Quality Standards Attainment Program (Carl Moyer Program) provides financial opportunities for the incremental cost of cleaner than required trucks, engines, and equipment. The Carl Moyer Program is implemented through the cooperative efforts of the CARB and local California air pollution control or air quality management districts (districts).

Funds may be available to fleets or truck owners who have operated vehicles with manufacturer Gross Vehicle Weight Rating (GVWR) greater than 14,000 lbs. in California for a minimum of two years and operated at least 51 percent of the time in California.

Funding may be available for:

• Replacements, repowers, or conversions of a vehicle with an engine model year that is 6 or more years of age prior to the current calendar year.
• Fleets with 10 or less vehicles: Replacing older engines with 2013 or newer model year engines certified to a PM emission standard of 0.01 g/bhp-hr and a NOx standard of 0.02 g/bhp-hr or lower, including zero-emission.
• Fleets with more than 10 vehicles: Replacing older engines with engines certified to the optional low NOx standard (0.02 g/bhp-hr NOx) or cleaner, including zero-emission (except school buses, emergency vehicles and vehicles operating exclusively in NOx Exempt areas).

Please see the On-Road Grant Calculator to determine the potential maximum grant amount for eligible Moyer Program projects.

Program Homepage