California Air Resources Board

The Carl Moyer Program provides monetary grants to private companies and public agencies to clean up their heavy-duty engines beyond that required by law through retrofitting, repowering or replacing their engines with newer and cleaner ones.

These grants are issued locally by air pollution control districts and air quality management districts. Not all air districts fund every type of Carl Moyer Program project available. Please contact your local air district for the most updated information on funding availability, project eligibility, applications, and application selection timeline.

Projects that reduce emissions from heavy-duty on and off-road equipment qualify. This includes trucks over 14,000 gross vehicle weight, off-road equipment such as construction and farm equipment, marine vessels and locomotives, stationary agricultural equipment, forklifts, light-duty and other agricultural sources and airport ground support equipment.
              

• Off-Road 
  • Off-Road Voucher Incentive Program (ORVIP)
  • Off-Road Compression-Ignition Equipment (CI)
  • Off-Road Large Spark-Ignition Equipment (LSI)
  • Portable and Stationary Agricultural Sources
• On-Road 
  • On-Road Voucher Incentive Program (VIP)
  • On-Road Heavy-Duty Vehicles
  • Drayage Trucks
  • Emergency Vehicles
  • Public Agency & Utility Vehicles (PAU)
  • School Busses
  • Solid Waste Collection Vehicles (SWCV)
  • Transit Fleet Vehicles
  • Transport Refrigeration Units (TRU) 
• Locomotives
• Marine Vessels
• Light-Duty Vehicles
• Infrastructure

For more information regarding the Carl Moyer Program, email us or contact ARB's Diesel Hotline or contact your local air district.

Join the Carl Moyer Program list serve.