The driver shall be properly secured to the driver's seat with the seat belt at all times while the bus is in motion.
Cal. Code Regs. Tit. 13, § 1224
Note: Authority cited: Sections 34501, 34501.5 and 34508, Vehicle Code; and Section 38047, Education Code. Reference: Sections 545, 546, 680, 34501, 34501.5 and 34508, Vehicle Code.