Safety Sign Size
The wording on any safety sign should be concise and easy to read. The size of the lettering must be as
large as possible for the intended viewing distance. Minimum letter height for the signal word (danger,
caution, notice, etc.) shall be one unit of height for every 150 units of safe viewing distance. Minimum
letter height for other words on the sign shall be one unit of height for every 300 units of safe viewing
distance Signs must be placed to alert and inform employees of hazards in sufficient time to avoid the
hazard and take appropriate action.
Employees should not be in harm's way before seeing the sign.
Signs must be placed so that they are legible, do not create a distraction, and are not a hazard in
Signs must not be placed on moveable objects or adjacent to moveable objects like doors, windows etc.,
which if moved will obscure the sign.