Mandatory symbol signs are used to maintain professional working etiquette to a high standard by members of staff, following work safety policies rules. Mandatory means an instruction or action which is recommended or required to be followed. Our range of mandatory symbol signs will instruct, inform & advise the public and workforce of an action or requirement that must be carried out to ensure a safer working environment. All of our mandatory symbol signs below have a Blue and White circular layout which means they comply with EU regulations BS EN ISO7010. Need a mandatory safety sign? why not check out our range of mandatory signs.