Safety tags communicate safety instructions and increase awareness of potential hazards. Blank and pre-printed header safety tags have pre-printed OSHA headers with blank areas below to write custom messages. Chemical, gas, and hazardous material tags identify and warn workers of dangerous materials or conditions that could cause injury. Confined space tags are used to discourage unauthorized entry to areas with limited entry or exit. Hot surface and substance safety tags mark areas where high-temperature equipment and hot water bring an increased risk of burn injuries, damaged materials, or fires. Hot work safety tags mark areas where high-temperature equipment and hot water bring an increased risk of burn injuries. Machine hazard tags provide guidance for the safe handling of machinery and deter unauthorized use. Restricted area and authorized personnel safety tags mark restricted areas where only those with permission are allowed to enter.