NMC OSHA signs are the perfect way to alert your employees and guests when a hazard is present in your facility. Header "DANGER" and legend "AREA IN FRONT OF THIS ELECTRICAL PANEL MUST BE KEPT CLEAR FOR 36 INCHES OSHA-NEC REGULATIONS". These OSHA signs comply with OSHA 29 CFR 1910.145. Rigid plastic 0.050 thick polystyrene material is ideal for long lasting indoor or outdoor use. Good chemical resistant. Maximum temperature: 183 degree F. Mounting: yes. Measures 10-inches length by 7-inches height.