The National Marker Company label with the legend “CAUTION CONTAINS PCBS” is often used in industrial and manufacturing facilities to properly identify Polychlorinated Biphenyls (PCB). The safety label cautions the reader about the toxic nature of the material and informs that it requires special handling and disposal. It also asks to call the U.S. Coast Guard National Response Center in case of any accidental spills. It shows the message in clear bold letters and contrasting colors to ensure clear visibility in most lighting conditions and even from a distance. The material used in this hazmat label is waterproof, chemical resistant, and graffiti proof.