Certain wide or long vehicles must carry specified lamps, reflectors, and hazard lighting; some wide vehicles may also carry limited identification lamps.
Sec. 547.352. ADDITIONAL LIGHTING EQUIPMENT REQUIREMENTS. In addition to other equipment required by this chapter: (1) a bus, truck, trailer, or semitrailer that is at least 80 inches wide shall be equipped with: (A) two clearance lamps on the front, one at each side; (B) two clearance lamps on the rear, one at each side; (C) four side marker lamps, one on each side at or near the front and one on each side at or near the rear; (D) four reflectors, one on each side at or near the front and one on each side at or near the rear; and (E) hazard lamps that meet the requirements of Section 547.331; (2) a bus or truck that is at least 30 feet long shall be equipped with hazard lamps that meet the requirements of Section 547.331; (3) a trailer or semitrailer that is at least 30 feet long shall be equipped with: (A) two side marker lamps, one centrally mounted on each side with respect to the length of the vehicle; (B) two reflectors, one centrally mounted on each side with respect to the length of the vehicle; and (C) hazard lamps that meet the requirements of Section 547.331; (4) a pole trailer shall be equipped with: (A) two side marker lamps, one at each side at or near the front of the load; (B) one reflector at or near the front of the load; (C) one combination marker lamp that: (i) emits an amber light to the front and a red light to the rear and side; and (ii) is mounted on the rearmost support for the load to indicate the maximum width of the trailer; and (D) hazard lamps that meet the requirements of Section 547.331, if the pole trailer is at least 30 feet long or at least 80 inches wide; (5) a truck-tractor shall be equipped with: (A) two clearance lamps, one at each side on the front of the cab; and (B) hazard lamps that meet the requirements of Section 547.331, if the truck-tractor is at least 30 feet long or at least 80 inches wide; and (6) a vehicle at least 80 inches wide may be equipped with: (A) not more than three front identification lamps without glare; and (B) not more than three rear identification lamps without glare. Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.