California Code, Vehicle Code - VEH § 23229

(a) Except as provided in Section 23229.1, Section 23221, as it applies to an alcoholic beverage, and Section 23223 do not apply to passengers in any bus, taxicab, or limousine for hire licensed to transport passengers pursuant to the Public Utilities Code or proper local authority, the living quarters of a housecar or camper, or of a pedicab operated pursuant to Article 4.5 (commencing with Section 21215) of Chapter 1.

(b) Except as provided in Section 23229.1, Section 23225 does not apply to the driver or owner of a bus, taxicab, or limousine for hire licensed to transport passengers pursuant to the Public Utilities Code or proper local authority, or of a pedicab operated pursuant to Article 4.5 (commencing with Section 21215) of Chapter 1.