The Oklahoma Clean Diesel (DERA) Program funds the replacement of old diesel school buses with cleaner alternatives to reduce emissions and improve air quality in Oklahoma.
Clean Diesel Grant Programs support public and private fleets across Wisconsin with engine retrofits, upgrades, and vehicle and equipment replacements to reduce diesel emissions and maximize health benefits.
Diesel Reduction Grants support Washington public and private fleets replacing or repowering diesel vehicles and equipment with zero-emission alternatives to reduce toxic exhaust and greenhouse gas emissions.
Municipality and County Diesel Equipment Replacement Program supports Wyoming city and county governments in replacing diesel trucks, transit buses, or their engines to reduce emissions across the state.
The EPA offers competitive 2026 grants to eligible entities to retrofit, replace, or retire older diesel engines, vehicles, and equipment.