Prohibition signs help communicate what activities are not allowed in certain areas in your business. A prohibition sign is a safety sign prohibiting specific behaviour likely to cause a risk to health and safety. These health & safety signs are red and depict only what or who is forbidden. Our range of prohibition signs are essential for ensuring a clear method of communicating the rules to your customers and staff and help to reduce hazards and minimise risk. Prohibition safety signage generally shows a black safety symbol in a red circle with a diagonal cross going through the circle. All our prohibition signs can be printed on either a choice of rigid foam board, aluminium composite, rigid plastic and self-adhesive vinyl.