NFL kickoff rule: Here's what changed in 2018 and what it means
NFL owners agree to trial controversial new rule during 2023 season - Mirror Online
Football Zebras - Analysis and commentary of the NFL's officials and the calls they make
NFL Explains New 2018 Kickoff Rules After Owners Vote at Spring Meetings, News, Scores, Highlights, Stats, and Rumors
New NFL kickoff rules, explained: What to know about fair catch, touchback changes for 2023
NFL owners approve rule changes for kickoff, ejection reviews
NFL owners meeting: League delays decision on reviewable plays - Sports Illustrated
NFL owners approve rule change for OT in playoffs
Owners votes on kickoff rule, 'TNF' flex reflect NFL's priorities - Sports Illustrated