PROGUARD Mandatory Safety Signs Wear Face Shield

A “mandatory sign” means a sign prescribing behaviour. These signs are required to be blue. A mandatory sign shall show only what action is required. Mandatory signs generally use a white safety symbol on a blue background. Mandatory safety signs are not, as some people believe, ‘those which are required by law’ Defination of a Mandatory Signs These signs display a specific behavior message or action that must be carried out within a designated area.