Sec. 547.332.  OTHER LAMPS PERMITTED.  A motor vehicle may be equipped with:
(1)  not more than two side cowl or fender lamps that emit an amber or white light without glare;
(2)  not more than two running board courtesy lamps, one on each side of the vehicle, that emit an amber or white light without glare;  and
(3)  one or more backup lamps that:
(A)  emit an amber or white light only when the vehicle is not moving forward;  and
(B)  may be displayed separately or in combination with another lamp.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.