NFL pass interference rule 2019: Explaining the new challenge, replay process for PI
NFL Referees to get better in-game replay reviews with expanded Surface deal - MSPoweruser
NFL considering adding booth umpire and more to help on replays - Newsday
2023 College Football Rule Changes Explained
History of Instant Replay
NFL rule changes: Modified instant replay, more positions allowed to wear single-digit jerseys - The Washington Post
XFL has NFL beat when it comes to video replay transparency
NFL review system puts ESPN, Fox, CBS and NBC in tough spot - Sports Illustrated
The CFL has figured instant replay out. How long until the NFL and CFB follow suit? - Footballscoop
Behind-the-scenes with NFL sideline technology: Microsoft and Bose power team communication – GeekWire
Important Rule Changes for the 2023 College Football Season - National Football Foundation
NFL Football Operations on X: The @NFL expanded its replay rule to allow replay officials to assist on-field officials in specific, limited game situations to prevent game stoppages and improve accuracy of
Rules school: What replay assist can and can't do – Football Zebras