2021 NFL rule changes guide - What to expect from more replay help, jersey number flexibility, more - ESPN
NFL quietly added new language to rule on reviewing forward progress in 2022 - NBC Sports
The NFL changed its replay rules after the Saints-Rams fiasco. Now comes the hard part. - The Washington Post
League Meetings Bring 2019 Rule Changes
NFL Rule Changes: Expanded replay on pass interference key topic - Sports Illustrated
NFL will consider instant replay changes, but 'sky judge' remains unlikely - The Washington Post
College football rule change: No more pulling opponents off piles
Several NFL Teams Propose Rule Changes To Add More Instant Replay
NFL rule changes you should know as the 2023 season kicks off - ESPN
NFL confirms new pass interference replay rule, but for 2019 only
2019 NFL Rules Changes - Here's What You Missed This Offseason