The National Marker Sign with the legend ?AUTHORIZED VEHICLES ONLY? is often seen in private and public parking lots. It clearly informs the drivers about the indicated parking spot is reserved for authorized vehicles. The authorized parking sign uses contrasting colors to ensure clear visibility from a distance and in most lighting conditions. The material used in the sign is UV resistant, chemical resistant, graffiti proof and has an NMC Sign Muscle coating that protects the graphic against fading, scratches, scuffing, mold, and moisture.