1. During darkness, shall, if it is safe to do so, place not less than one red flare, red lantern, warning light or reflector in close proximity to each warning sign.
2. During daylight, may place a red flare, red lantern, warning light or reflector in close proximity to each warning sign.
(Added to NRS by 1963, 1268; A 2009, 1096)—(Substituted in revision for NRS 484.499)