The document discusses how strengthening California's Zero Emissions Vehicle program can help accelerate the adoption of electric vehicles. It argues that widespread adoption of electric vehicles is critical to meet long-term climate goals. A strong ZEV program can provide market certainty to boost investment in electric vehicles, increase consumer choice of electric models, and ensure the U.S. remains competitive in developing this technology. The document recommends requiring at least 50% of vehicles under the ZEV program be all-electric by 2025 to adequately advance electric vehicle commercialization.