NFL pass interference rule 2019: Explaining the new challenge, replay process for PI
League Meetings Bring 2019 Rule Changes
N.F.L. Will Experiment With Replay Reviews of Pass Interference - The New York Times
Players Can Now Wear No. 0 as Part of NFL Rule Changes
NFL insider notes: Run of blatantly bad calls may force changes, MVP race goes down to wire, more from Week 15
N.F.L. Will Likely Use Replay to Confirm Illegal Hits - The New York Times
A closer look at the rule changes the NFL is debating - The Washington Post
History of Instant Replay
On Further Review, the NFL's Instant Replay is Finally Instant
On Further Review, the NFL's Instant Replay is Finally Instant
Keeping instant replay simple has worked in the UIL state championship, but is Texas ready to expand its use?
NFL review system puts ESPN, Fox, CBS and NBC in tough spot - Sports Illustrated
NFL distributes updated rules on pass interference replay review
Don't Blame The Refs For All Of These Replay Reviews