California's Aggressive Moves to Reduce Transportation Emissions

California's Air Resource Board (CARB) has announced new regulations to limit freight train emissions, making it the first state to tackle the issue. The In-Use Locomotive Regulation will ban any locomotive engine constructed more than 23 years ago by 2030 and require all new switch, industrial, and passenger locomotives to be zero-emissions while in California beginning in 2030 and 2035 for freight line haul. The regulation is expected to contribute the largest reduction in nitrogen oxide emissions toward meeting California air quality standards by the 2037 deadline and create an estimated $32 billion in health savings while preventing 3,200 premature deaths and 1,500 emergency room visits or hospitalizations.