The National Marker Company tag with front and back legend ?DO NOT START? informs the readers to not start an equipment or machine. It is mostly used at industrial facilities and manufacturing units to enforce safety regulations for prevention of accidents due to sudden start of faulty machinery. Also, there is a blank space on both sides to add other information and additional comments. The tag uses contrasting colors to ensure clear visibility from a distance and in most lighting conditions. Using OSHA safety tags that carry important warnings or status updates are a part of common safety measures in many places.