Has NFL found answer to fewer challenges with 'replay assistance'?
NFL Referees Use Replay To Rescind Penalty Against Packers On Monday Night Football, Which No One Knew They Could Do : r/nfl
History of Instant Replay
What went wrong with NFL officiating in 2019 and what comes next? - ESPN
NFL Caretakers: Clark Promoted, Six New NFL Officials Are Now Caretakers Of The Game – Locker-Report
NFL distributes updated rules on pass interference replay review
NFL Football Operations NFL Football Operations
NFL promotes Alberto Riveron to head of officiating - Los Angeles Times
NFL Approves Expanded Authority for Replay Officials Ahead of 2021 Season, News, Scores, Highlights, Stats, and Rumors
NFL review system puts ESPN, Fox, CBS and NBC in tough spot - Sports Illustrated
NFL referee assignments Week 9: Who are the officials for every game this week?
NFL officials have been off their game this season - The Boston Globe
NFL head of officiating Dean Blandino resigns
Stung by Discord Over Officiating, the N.F.L. Puts a Coach in Charge - The New York Times