§47-12-213.

§47-12-213.
   
   Whenever the load upon any vehicle extends to the rear four (4) feet
   or more beyond the bed or body of such vehicle, there shall be
   displayed at the extreme rear end of the load, at the time specified
   in Section 12-201 hereof, a red light or lantern plainly visible from
   a distance of at least five hundred (500) feet to the sides and rear.
   The red light or lantern required under this section shall be in
   addition to the red rear light required upon every vehicle. At any
   other time there shall be displayed at the extreme rear end of such
   load a red flag or cloth not less than twelve (12) inches square and
   so hung that the entire area is visible to the driver of a vehicle
   approaching from the rear.