WVC 17 C- 15 - 2
§17C-15-2. When lighted lamps are required.
Every vehicle other than a school bus, motorcycle,
motor-driven cycle or moped operated upon a highway within this
state at any time from sunset to sunrise, or during fog, smoke,
rain or other unfavorable atmospheric conditions, or at any other
time when there is not sufficient light to render clearly
discernible persons and vehicles on the highway at a distance of
five hundred feet ahead, shall display lighted head lamps and
illuminating devices as hereinafter respectively required for
different classes of vehicles, subject to exceptions with respect
to parked vehicles as provided for in subsection (c), section
fifteen-c of this article. Every school bus, motorcycle,
motor-driven cycle and moped shall display lighted head lamps at
all times when upon the highway.