(a) A bus, other than a school bus, that provides public transportation and that was acquired on or after September 1, 1997, shall be equipped with two or more hazard lamps that:
(1) are mounted at the same level on the rear of the bus;
(2) are visible at a distance of 500 feet in normal sunlight;
(3) flash; and
(4) emit amber light.
(b) An operator of a bus to which this section applies shall activate the hazard lamps if the bus stops to load or unload a person under 18 years of age.
(c) A bus to which this section applies must bear a sign on the rear of the bus stating: "Caution--children may be exiting".