Replay Assistance Rule NFL Football Operations
NFL first: About one-fifth of the 124 officials will be made full-time employees this season - Los Angeles Times
NFL will open season with replacement officials
Has The NFL's Instant Replay Run Its Course?
NFL Officials: Preparing for Success
Mike Brown expresses concerns over NFL replay expansion
Carl Madsen dies after working Chiefs-Titans game as replay official
Another first for NFL referee Sarah Thomas: She's headed to the Super Bowl.
Hurley: NFL's New Rule For Replay Review On Pass Interference Doesn't Seem So Bad - CBS Boston