Carpools Allowed in Bus Lane Only During Weekday Peak Periods

SAN FRANCISCO, Sept. 9, 2026 /PRNewswire/ — The California Highway Patrol, in partnership with Caltrans and the Bay Area Toll Authority, this month will resume concentrated enforcement of the laws governing the westbound approach to the San Francisco-Oakland Bay Bridge. This includes strict enforcement of vehicle-type and vehicle-occupancy laws in the bus/carpool lane that bypasses the San Francisco-Oakland Bay Bridge toll plaza at the far-right side of the roadway.

This lane — which can be accessed by traffic approaching the bridge from Interstate 80, Interstate 880 or West Grand Avenue — may be used by buses, motorcycles or carpools with three or more occupants during the weekday commute periods of 5 a.m. to 10 a.m. and 3 p.m. to 7 p.m. Only buses may lawfully use the lane at other times, including all day on Saturdays and Sundays. Drivers cited for improper use of the bus/carpool lane outside weekday commute hours are subject to a fine of $490 or more.

“The signs at access points to the lane are clear and unambiguous. They read ‘Buses Only,'” noted Lt. Ed Clarke of the CHP’s Oakland Area. “But many drivers have not consistently followed the rule in recent years.” The CHP, Caltrans and BATA agree that focused enforcement will help address ongoing violations, improve compliance with the posted restrictions, and ensure the lane remains available for its intended use.

Acting Caltrans District 4 Director and BATA Commissioner Doanh Nguyen reminds drivers that the toll booths at the Bay Bridge and other state-owned toll bridges will soon be a thing of the past. “The transition to open-road tolling already is underway, with the new system set to debut next year at the Richmond-San Rafael Bridge. The comprehensive reconfiguration of the approaches to every state-owned toll bridge will improve safety and efficiency by allowing drivers to pay their tolls without having to slow down to squeeze past the obsolete toll booths.”

BATA administers all toll revenues from the region’s seven state-owned toll bridges. Caltrans owns and operates the state highway system, including state-owned toll bridges such as the Bay Bridge.

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SOURCE Bay Area Toll Authority