What is a prohibition sign?
This prohibition symbol is easily recognisable and therefore effective at helping people who might struggle to read the text interpret the sign's meaning accurately.
What examples are there of prohibition signs?
Examples of prohibition signs include access signs such as “Do not enter”, machinery safety signs including "Do not touch signs", or legal health instructions like “No smoking signs”.
In general prohibition signs tend to contain instructions beginning “No” or “Do not”. The message is intended to inform that certain actions are unsafe, or not permitted due to health and safety regulations. This language also makes the instruction as clear as possible.