Miss. Code Ann. § 63-7-15

(1) Every bus or truck. On every bus or truck, whatever its size, there shall be at least the following lighting devices and reflectors: On the front, two head lamps, one at each side. On the rear, one red tail lamp; one red or amber stop light; two red reflectors, one at each side.

(2) Every bus or truck eighty inches or more in width. On every bus or truck eighty inches or more in overall width there shall be at least the following lighting devices and reflectors: On the front, two head lamps, one at each side; two amber clearance lamps, one at each side. On the rear, one red tail lamp; one red or amber stop light; two red clearance lamps, one at each side; two red reflectors, one at each side. On each side, one amber side-marked lamp, located at or near the front; one red side-marker lamp, located at or near the rear; one amber reflector, located at or near the front; one red reflector, located at or near the rear.

(3) Every truck tractor. On every truck tractor there shall be at least the following lighting devices and reflectors. On the front, two head lamps, one at each side; two amber clearance lamps, one at each side. On the rear, one red tail lamp; one red or amber stop light.

(4) Every semi-trailer or trailer in excess of three thousand (3,000) pounds gross weight. On every semi-trailer or full trailer having a gross weight in excess of three thousand (3,000) pounds, there shall be at least the following lighting devices and reflectors: On the front, two amber clearance lamps, one at each side. On the rear, one red tail lamp; one red or amber stop light; two red clearance lamps, one at each side; two red reflectors, one at each side. On each side, one amber side-marker lamp, located at or near the front; one red side-marker lamp, located at or near the rear; one amber reflector, located at or near the front; one red reflector, located at or near the rear.

(5) Every semi-trailer or trailer weighing three thousand (3,000) pounds gross or less. On every semi-trailer or full trailer having a gross weight of three thousand (3,000) pounds or less, there shall be at least the following lighting devices and reflectors: On the front, no requirement. On the rear, one red tail lamp; two red reflectors, one at each side; one red or amber stop light if the semi-trailer or full trailer obscures the stop light on the towing vehicle.

(6) Every pole-trailer. On every pole-trailer there shall be at least the following lighting devices and reflectors: On the front, no requirement. On the rear, one red tail lamp; two red reflectors, one at each side, placed to indicate extreme width of the pole-trailer or its load, whichever is wider. (A red lantern or flag on the end of a projecting load shall be required as provided in section 63-7-47 .) On each side, on the rearmost support for the load, one combination marker lamp showing amber to the front and red to the side and rear, mounted to indicate maximum width of the pole-trailer or load; one red reflector, located at or near the rear.