WVC 17 C- 15 - 13
§17C-15-13. Obstructed lights not required to be lighted.
Whenever motor and other vehicles are operated in
combination during the time that lights are required, any lamp
(except tail lamps) need not be lighted which, by reason of its
location on a vehicle of the combination, would be obscured by
another vehicle of the combination, but this shall not affect the
requirement that lighted clearance lamps be displayed on the
front of the foremost vehicle required to have clearance lamps,
nor that all lights required on the rear of the rearmost vehicle
of any combination shall be lighted.