The adjacent ports of Long Beach and Los Angeles combined are the largest fixed sources of air pollution in the South Coast Air Basin, one of the most polluted air basins in the United States, in large part because the trucks and equipment used at the ports burn diesel fuel. Recognizing this, the Sustainable Terminals Accelerating Regional Transformation demonstration project was awarded $50 million to replace trucks and equipment with zero‑emission technology. The funding, which comes from California Climate Investments, supports the deployment of 102 pieces of zero‑emission terminal equipment and trucks at seaports across California, including at the ports of Los Angeles and Long Beach. These funds are also supporting the development of new, cleaner tugboats; the deployment of two container vessels with cleaner‑burning engines; and advanced workforce development programs to support sustainable goods movement across California.