Safety signs and labels communicate information and reminders about potential hazards and safety instructions to help prevent accidents and injuries. Chemical, gas, and hazardous material signs and labels warn workers of nearby materials or conditions that could cause injuries. Construction safety signs and labels identify the boundaries of construction zones and communicate hazards and entry restrictions. Hot surface and work safety signs and labels remind people that precautions for fire prevention must be considered. Lockout safety signs and labels remind workers to follow lockout/tagout procedures when servicing equipment. Machine hazard signs and labels promote safe machine use by providing guidance for proper use and for deterring unauthorized use. Marine and pool and water safety signs identify the location of lifeboats and jackets. Personal protective equipment signs and labels remind workers to wear personal protective gear before entering potentially dangerous areas.