Nevada Revised Statutes 484D.190 – Display of flashing amber warning light and signs by certain vehicles used to sell food or beverage
1. Any vendor of food or beverages who operates on public streets a vehicle which moves at a speed slower than the normal flow of traffic and which stops or stands on the street or adjacent to the curb so that customers may be served from the vehicle shall, upon obtaining a permit pursuant to NRS 484D.185, mount a flashing or rotating amber warning light on the roof of that vehicle and shall display warning signs on the vehicle pursuant to subsection 3.
2. The amber light must be in operation when the vehicle is:
(a) Moving down a street soliciting customers at a speed of less than 15 miles per hour; or
(b) Stopped or standing on the street or adjacent to a curb to serve customers.
3. The warning signs displayed on the vehicle must advise drivers of other vehicles of the danger of the presence of children around the vehicle. These signs must substantially conform to the color and style of print used on the warning signs displayed on public school buses in this State.