National Marker Company signage with legend ?DANGER - LP GAS NO SMOKING OR OPEN FLAMES WITHIN 50 FEET? is often used to prohibit people from smoking around the areas equipped with LP gas. Commonly used at commercial and industrial locations, restaurants, hotels and food processing industries. This sign is often used as a part of safety measures too where smoking can lead to fire- related safety hazards. Jobsites that handle possibly inflammable LPG are usually very specific about putting- up such danger signage across the premises. This OSHA signage is easy to spot and read, ensuring working personnel and visitors are immediately prohibited from smoking- related restrictions.