The National Federation of State High School Associations Football Rules Committee has approved new blindside blocking rules to further minimize risks associated with the sport.
The definition of a blindside block established by the committee is "a block against an opponent other than the runner, who does not see the blocker approaching," and will result in a 15-yard penalty.
The rules committee expanded the rule regarding a defenseless player with specific examples.
A player in the act of or just after throwing a pass.
A receiver attempting to catch a pass who has not had time to clearly become a runner.