Climate change has accelerated in impact, and the time left to act grows shorter each day (IPCC, 2023). Alternative fuel solutions once thought sufficient to reduce greenhouse gas (GHG) emissions from transportation no longer achieve the necessary results. The world
must now focus on transportation electrification (IPCC, 2023). Fortunately, investments and innovations in zero-emission buses and trucks are progressing at a rapid pace in the United States and across the world. Nonetheless, fleet adoption during this critical ramp-up period has been slowed by the comparatively high costs of these new vehicles in the early, low-volume market, as well as planning and paying for
infrastructure. Policymakers, manufacturers, and end users have experimented with a number of policy tools to promote first clean and now primarily zero-emission vehicle adoption. An expanding number of states and regions have adopted a now well-proven policy tool to
efficiently deploy zero-emission commercial vehicles—and now infrastructure—faster using an innovative and flexible point-of-sale incentive: the voucher incentive program (VIP).