Pays 80-85% to repower (replace the engine in) an existing off-road self-propelled diesel vehicle such as a tractor, backhoe or excavator with a cleaner Tier 2-4 engine. Not ag-specific; ag tractors are also served by the (suspended) Tractor Replacement Program, so this is currently the live route for farm equipment repowers.
Eligibility
Existing diesel engine >25 HP providing motive power for a self-propelled off-road vehicle; operating condition and operated in CA 12+ months; 75% of annual hours in CA and 50% within SJVAPCD; compliant with In-Use Off-Road Diesel Vehicle Regulation if applicable.
Terms
80-85% of cost; not a rebate; contract required before purchase.
Published amounts: 'Tier 2 Repower 80%; Tier 3, Interim Tier 4 or Tier 4 Repowers 85%' of cost.
Application Instructions
Apply via District application (Apply link), Form W-9, Claim for Payment after repower; contract before purchase.
Deadline text on the page: No suspension/closure notice on page; first come, first served.
Related Programs
ACRE3 Agricultural Energy Efficiency
Colorado Department of Agriculture
ACRE3 Irrigation Hydropower Programs
Colorado Department of Agriculture
Advancing U.S. Pork Sustainability and Market Value Grant
National Pork Board, U.S. Department of Agriculture
AgPrime
University of Mount Olive, North Carolina Tobacco Trust Fund Commission · Due Dec 15
Updated September 9, 2026
Image Credit: Wolfgang Rottmann
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