The term “safety sign” is relatively broad and basically means a visual indicator that covers a specific situation, object or activity and gives information or instructions on health and safety. Hand and audio signals may also be used.

To make sure signs and signals are quickly and readily understood by everyone, there are a prescribed set of criteria, such as those of shape and colour, that must be used by law, to indicate prohibited activities, warn of particular hazards or to indicate safe conditions, as this topic describes.

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