National Marker Company sign alerts individuals on parking restrictions in a specific area. The do not park here notice sign can be put up in front of private properties and other facilities where parking is not convenient. The legend âNOTICE â DO NOT PARK HEREâ is printed in Black over a White base and in White over a Blue base. The highly legible letters make the sign easy to read even from a far. The pre-drilled parking notice sign is graffiti proof, UV resistant and chemical resistant and complies with OSHA 29 CFR-1910.145 standards. It also has the NMC Sign Muscle coating to help protect the text from moisture, fading, mold, scuffing, and scratches.