Topline:

The back story: The state’s Clean Air Vehicle Decal program allowed certain hybrid, electric and hydrogen-powered cars to use the carpool lane even when driving solo. But that perk came to an end Oct.1 after Congress did not approve an extension of the Clean Air Vehicle (CAV) decal program.

Why now: The California Highway Patrol issued a 60-day grace period for drivers that ended Nov. 30.

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