The National Federation of State High School Associations is the overriding body that regulated High School sports in the country. The Washington Interscholastic Activities Association, the Oregon School Activities Association and the Idaho High School Activities Association are the governing bodies for each state.
The WIAA, OSAA & IHSAA accepts the NFSS rules concerning helmets and Mouthguards. The football rules were updated in 2005 as follows:
1-5-1: Beginning with the 2006 season, all helmets shall be secured with a four-snap chin strap and a tooth protector shall be of any readily visible color, other than white or clear.
The purpose is to allow the officials to easily confirm the Mouthguard in the player’s mouth.