An Act relative to responsibly reducing emissions in the transportation sector

This bill requires Massachusetts state agencies to transition their medium- and heavy-duty truck fleets to battery electric vehicles. Starting July 1, 2025, all new purchases or leases must be battery electric trucks, with the entire fleet fully converted by June 30, 2035, unless infrastructure limitations or lack of suitable models prevent it. Agencies must annually report fleet details and justify any exceptions to using zero-emission vehicles. Additionally, the bill delays Massachusetts from implementing California's Advanced Clean Trucks regulations until at least July 1, 2027. The policy directly affects state agencies managing vehicle fleets and aims to reduce transportation emissions through fleet electrification.