SACRAMENTO – (INT) - The California Air Resources Board (CARB) has approved an updated plan for the South Coast Air Basin aimed at further cutting smog-forming emissions to attain the federal 8-hour ozone standard.

The air quality plan is the most stringent in the nation.

The plan includes strategies ranging from a new statewide locomotive regulation to more stringent off-road diesel engine standards. The plan also includes current efforts to transform California’s vehicle fleet to zero-emission.

Sources of air pollution for which federal authorities have primary responsibility are expected to make meeting the federal standard more challenging. A CARB analysis indicates that federal sources such as planes and trains will emit more smog-forming nitrogen oxides (NOx) emissions than any other mobile sources in the South Coast Air Basin by the end of the next decade.

Story Date: December 31, 2019