NFL Owners Approve Replay Rule Changes, Among Others for 2021 Season
NFL Football Operations NFL Football Operations
NFL owners vote to change instant replay rules for potential pass interference calls again
N.F.L. Will Experiment With Replay Reviews of Pass Interference - The New York Times
History of Instant Replay
For ACC and power conferences, off-site help on football replay reviews is now essential
NFL helmet rule: No changes coming or instant replay for penalties
NFL makes major change to instant replay by making called and uncalled pass-interference penalties reviewable
NFL's expedited replay process failed spectacularly on DeVonta Smith's catch in NFC Championship Game - CBS Boston
Game ball procedure revised in wake of Deflategate – Football Zebras
NFL rule changes: Modified instant replay, more positions allowed to wear single-digit jerseys - The Washington Post