How important are reflectors in truck safety?
The NHTSA has strict rules about where reflectors must be on trucks. Every lamp, reflex reflector, and conspicuity treatment (device) must be permanently attached to a specified location and must comply with all applicable requirements. The face of any device on the front/rear and sides should be, respectively perpendicular and parallel to vehicle centerline, unless it is photo-metrically certified at installation angle. No part of the vehicle shall prevent any device from meeting its prescribed requirements unless an auxiliary device meeting all prescribed requirements is installed.
