In the National Football League, an illegal procedure is used to refer to a number of different penalties.
Types of illegal procedure
Some penalties are signalled with a generic "illegal procedure" signal.[1] Examples are:
Some examples of similar penalties have their own signals. Examples include:
Usage at different levels
It is used similarly to the professional level at the high school level,[2] but this term is not referenced at all in the collegiate rule book.[3]
References