All buses subject to this title shall be equipped with interior mirror(s) that give the driver a clear view of the interior of the vehicle and any rear and center entrance or exit doors and stepwells. In lieu of mirrors, trailerbus combinations and articulated buses may be equipped with closed circuit video systems or adult monitors in voice contact with the driver.
Cal. Code Regs. Tit. 13, § 1257
Note: Authority cited and Reference: Sections 546, 31401, 34501, 34501.5 and 34508, Vehicle Code; and Section 39831, Education Code.