Officiating crews for the 2021 season – Football Zebras
NFL promotes Alberto Riveron to head of officiating - Los Angeles Times
Replay Assistance Rule NFL Football Operations
Stung by Discord Over Officiating, the N.F.L. Puts a Coach in Charge - The New York Times
NFL head of officiating Dean Blandino resigns
Even before kickoff, referees to make history in the Super Bowl
Officials' Responsibilities & Positions
NFL Releases Full List of Competition Committee's 2020 Rule Proposals, News, Scores, Highlights, Stats, and Rumors
NFL refs roster includes 1st female instant replay official
Officials' Responsibilities & Positions
NFL Football Operations (@NFLFootballOps) / X
Surface tablets for officiating reviews takes hold in NFL
NFL Officials: Preparing for Success
Upon further review, NFL officiating is in 'decline'