California Takes A ZEV Sales Victory Lap, Trump Or No Trump

California recently celebrated a significant milestone in zero-emission vehicle (ZEV) sales, with ZEVs accounting for 18.9% of new car sales in the fourth quarter of 2025 and surpassing 2.5 million cumulative sales. This achievement was highlighted by the California Energy Commission (CEC) and state officials as a clear message that transportation decarbonization efforts will persist regardless of federal political changes, including opposition from the Trump administration. Officials emphasized that ZEVs not only reduce air pollution but also offer benefits such as lower maintenance costs and enjoyable driving experiences, signaling a strategic shift in promoting electric vehicles based on economic and performance advantages rather than solely environmental concerns. Supporting this transition, new research from the University of Southern California (USC) demonstrated measurable improvements in local air quality linked to increased ZEV adoption. By analyzing nitrogen dioxide (NO₂) pollution across nearly 1,700 California neighborhoods from 2019 to 2023 using high-resolution satellite data, the study