Two college football rule changes were made official on Friday.
The NCAA Playing Rules Oversight panel officially approved both in-helmet communication on the field and a two-minute warning at the end of each half for college football, effective for the 2024 football season.
Each team will be allowed to have one player on the field at a time with direct communication to coaches through his helmet, and that player will be identified with a green dot on the back midline of his helmet.
Communications will be closed with 15 seconds remaining on the play clock or when the ball is snapped, whichever comes first on a given play.