From Tennessee Code Annotated:
T. C. A. § 55-9-402. Motor vehicles
(a)(1) Every motor vehicle other than a motorcycle, road roller, road machinery or farm tractor
shall be equipped with at least two (2) and not more than four (4) headlights, with at least one
(1) on each side of the front of the motor vehicle. No nonemergency vehicle shall operate or
install emergency flashing light systems, such as strobe, wig-wag, or other flashing lights within
the headlight assembly or grill area of the vehicle; provided, however, that a school bus may
operate a flashing, wig-wag lighting system within the headlight assembly of the vehicle when
the vehicle's visual stop signs are actuated for receiving or discharging school children.
(2) Auxiliary road lighting lamps may be used, but not more than two (2) of the lamps shall be
lighted at any one (1) time in addition to the two (2) required headlights.
(3) No spotlight or auxiliary lamp shall be so aimed upon approaching another vehicle that any
part of the high intensity portion of the beam therefrom is directed beyond the left side of the
motor vehicle upon which the spotlight or auxiliary lamp is mounted, nor more than one
hundred feet (100′) ahead of the motor vehicle.
(b)(1) Every motor vehicle shall be equipped with two (2) red tail lamps and two (2) red
stoplights on the rear of the vehicle, and one (1) tail lamp and one (1) stoplight shall be on each
side, except that passenger cars manufactured or assembled prior to January 1, 1939, trucks
manufactured or assembled prior to January 1, 1968, and motorcycles and motor-driven cycles
shall have at least one (1) red tail lamp and one (1) red stoplight. No nonemergency vehicle
shall operate or install emergency flashing light systems such as strobe, wig-wag, or other
flashing lights in tail light lamp, stoplight area, or factory installed emergency flasher and
backup light area; provided, however, that the foregoing prohibition shall not apply to the
utilization of a continuously flashing light system. For the purposes of this part, “continuously
flashing light system” means a brake light system in which the brake lamp pulses rapidly for no
more than five (5) seconds when the brake is applied, and then converts to a continuous light
as a normal brake lamp until the time that the brake is released.
…
T. C. A. § 55-9-601. Requirement; specifications
(a)(1) It is unlawful for any person to buy, sell, lease, trade or transfer from or to Tennessee
residents, at retail, an automobile that is manufactured or assembled commencing with the
1964 models, unless the automobile is equipped with safety belts installed for use in the left
front and right front seats.
(2) It is unlawful for any person to buy, sell, lease, trade or transfer from or to Tennessee
residents, at retail, a passenger motor vehicle that is manufactured or assembled commencing
with the 1969 models, unless the passenger motor vehicle is equipped with safety belts
installed for use in every designated seating position of the motor vehicle.
(b) All such safety belts shall be of a type and be installed in a manner approved by the
department of safety. The department shall establish specifications and requirements of
approved types of safety belts and attachments. The department shall accept, as approved, all
seat belt installations and the belt and anchor meeting the specifications of the Society of
Automotive Engineers.
(c) As used in this section, unless specified otherwise, “passenger car” or “passenger motor
vehicle” means any motor vehicle with a manufacturer's gross vehicle weight rating of eight
thousand five hundred pounds (8,500 lbs.) or less that is not used as a public or livery
conveyance for passengers. “Passenger car” or “passenger motor vehicle” does not apply to
motor vehicles that are not required by federal law to be equipped with safety belts.
(d) A violation of this section is a Class C misdemeanor.
(e) No court costs shall be imposed or assessed against anyone convicted of a violation of this
section.