Section 636.

Cal. Vehicle Code - VEH § 636.
in effect
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A “trailer bus” is a trailer or semitrailer designed, used, or maintained for the transportation of more than 15 persons, including the driver, and includes a connected towing motor vehicle that is a motor truck, truck tractor, or bus.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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