High court to hear case on Port of L.A.'s Clean Truck Program

The trucking industry is challenging rules that Los Angeles adopted five years ago to reduce air pollution from trucks at the nation's busiest port.

WASHINGTON — The Supreme Court agreed to hear the trucking industry's challenge to the Clean Truck Program at the Port of Los Angeles in a case testing whether cities and states have any authority to limit pollution from trucks that help move long-haul cargo.

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