Colorado All-Electric or Fuel Cell Heavy-Duty Truck Tax Credit Pathway: Energy Efficiency, Conservation, and Fuel Switching in Transportation → Heavy-Duty Vehicles and Freight → Supporting Electric HDVs through Grants, Taxes, and RebatesJurisdiction: States and State Governments → State Legislatures Colorado allows a tax credit up to $20,000 for the purchase of an all-electric or fuel cell heavy-duty truck. The credit declines over time and expires after 2021. ( Rev. Stat. 39-22-516.8)