Safety signs can be found in virtually every kind of workplace as they are used to communicate a wide range of safety information to workers and others who may be present in the workplace. They can point out specific hazards, the precautions to be taken and the actions to be followed in the event of an emergency. The main aim of a safety sign is to provide a message which is readily understandable. 

All employers have a legal duty to provide safety signs wherever there is a risk that has not been brought under control by any other means. Therefore, a risk assessment must be carried out to decide whether safety signs should be used to reduce the health and safety risks to the employees.