Are the NFL Referees a Problem?
The History of Instant Replay in the NFL, News, Scores, Highlights, Stats, and Rumors
NFL rule changes 2023: No. 0 jersey is back, personal foul penalties clarified, one date for roster cutdowns
Replay review in gridiron football - Wikipedia
Why future of NFL officiating isn't replay, challenges - Sports Illustrated
Chiefs vs Bengals: Referee explains third down do-over
Replay Assistance Rule NFL Football Operations
New NFL rules for 2023: league adopts changes to replay, fourth-downs
NFL rule changes include players now being able to wear No. 0, and tripping penalties being personal fouls - Dawgs By Nature