Head trauma outside the sports setting, e.g., motor vehicle accident, should be considered in " Return to Play" section for each grade of concussion.
Coaches should read and follow these sections religiously.

GRADE I

This is the most common, yet most difficult form of concussion to recognize. The athlete is not rendered unconscious and suffers only momentary confusion. The majority of concussions in sports are of this type. Players commonly refer to it as having their " bell rung". A player should never return to play until they are asymptomatic (without symptoms) at rest or exertion for a period of one week. Player must receive doctors permission before returning to play.

GRADE II

With a grade 2 concussion, the athlete is not rendered unconscious but exhibits confusion and has amnesia for the events following the impact (post-traumatic amnesia). Player must receive doctors permission before  returning  to  play.

GRADE III

It is usually quite easy to recognize a Grade 3 concussion. This level of head injury applies to any athlete who is rendered unconscious for any period of time.  Player must receive doctors permission before returning to play.