Vehicle Code section 38603

(a)

A person operating a recreational off-highway vehicle with a model year of 2014 or later on lands, as described in Section 38001, shall not allow a passenger to occupy a separate seat location not designed and provided by the manufacturer for a passenger.

(b)

Seats that are installed in a separate seat location not designed and provided by the manufacturer for a passenger in a vehicle with a model year of 2013 or earlier on lands, as described in Section 38001, may be occupied by a passenger if the occupant of the seat is fully contained inside of the vehicle’s rollover protection structure at all times while the vehicle is being operated.

Source: Section 38603, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=VEH§ionNum=38603.­ (updated Jan. 1, 2020; accessed Jun. 30, 2025).

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Verified:
Jun. 30, 2025

§ 38603's source at ca​.gov