The California Pollution Control Financing Authority (CPCFA) must develop and implement a purchasing assistance program for medium- and heavy-duty (MHD) ZEV fleets. CPCFA must consult with stakeholders to design a program that provides financial support and technical assistance to fleet managers deploying MHD ZEVs. CPCFA must designate high-priority fleets, considering implications for climate change, pollution, environmental justice, and post-COVID economy recovery. A minimum of 75% of financing products must be directed towards operators of MHD ZEV fleets whose fleets directly impact, or operate in, underserved communities. CPCFA must establish the program by January 1, 2023, and provide annual reports on program outcomes to the California Air Resources Board. (Reference Senate Bill 372, 2021)