According to NFHS rules, what must be done with a wrestler's hair?

In wrestling, the rules concerning hair are designed to ensure safety and uniformity during competition. A wrestler's hair must be secured and cannot extend below the collar. This regulation exists primarily to prevent any potential hazards that could arise from hair being pulled or caught during a match. Loose hair can also obstruct the view of both the wrestlers and referees, affecting the clarity of the match. By requiring that hair be secured, officials promote a safer environment and uphold the sport's standards for appearance and safety protocols. The specific ruling about hair length prevents the possibility of hair interfering with grappling techniques as well as ensuring that the wrestlers adhere to a certain professional appearance on the mat.