A No Dogs Sign is a prohibition message type of dog restriction sign which has been manufactured from a tough plastic material to withstand tough weather conditions and is generally used for being mounted for display around areas where it is necessary to stop dogs from being allowed around specific areas and the sign conveys the message "No dogs" which means that dogs are not allowed or are prohibited.

Some shops and workplaces only allow you to take a dog in with you if it is a guide dog or assistance dog. The sign to indicate this is a simple ‘ No dogs except guide dogs ’ message with the easily recognisable image of a dog in a circle with a line through it. The message is clear and these signs can be placed at doorways and other entrances.