§47-12-220.

§47-12-220.
   
   (a) Any motor vehicle may be equipped with not more than two side cowl
   or fender lamps which shall emit an amber or white light without
   glare.
   
   (b) Any motor vehicle may be equipped with not more than one
   running-board courtesy lamp on each side thereof which shall emit a
   white or amber light without glare.
   
   (c) Any motor vehicle may be equipped with not more than two back-up
   lamps either separately or in combination with other lamps, but any
   such back-up lamp shall not be lighted when the motor vehicle is in
   forward motion.
   
   (d) Any vehicle may be equipped with lamps which may be used for the
   purpose of warning the operators of other vehicles of the presence of
   a vehicular traffic hazard requiring the exercise of unusual care in
   approaching, overtaking or passing, and when so equipped may display
   such warning in addition to any other warning signals required by this
   act. The lamps used to display such warning to the front shall be
   mounted at the same level and as widely spaced laterally as
   practicable, and shall display simultaneously flashing white or amber
   lights, or any shade of color between white and amber. The lamps used
   to display such warning to the rear shall be mounted at the same level
   and as widely spaced laterally as practicable, and shall show
   simultaneously flashing amber or red lights, or any shade of color
   between amber and red. These warning lights shall be visible from a
   distance of not less than five hundred (500) feet under normal
   atmospheric conditions at night.
   
   (e) Any commercial vehicle eighty (80) inches or more in overall width
   may be equipped with not more than three identification lamps showing
   to the front which shall emit an amber light without glare and not
   more than three identification lamps showing to the rear which shall
   emit a red light without glare. Such lamps shall be placed in a row
   and may be mounted either horizontally or vertically.