National Marker Company signage with legend “DANGER - NO SMOKING” is often used to inform people about places that don't allow or prohibit smoking. Often used at commercial and residential locations, and in public spaces, apart from warehouses, workplaces and jobsites, 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 solvents, chemicals or materials are usually very specific about putting-up such danger signage across the premises. This OSHA signage features easily readable text ensures working personnel and visitors are informed about smoking-related prohibitions/restrictions.