NFL owners approve shortening overtime to 10 minutes
What NFL Rule Changes Are Under Consideration at the 2023 NFL Owners Meetings?
NFL won't change overtime rules despite Chiefs' push for both teams to get possession
American football rules - Wikipedia
NFL rule changes 2019: Teams want instant replay and overtime changes, NFL, Sport
PETER KING DISCUSSES TYREEK HILL, MATT RYAN AND NFL LEAGUE MEETINGS, INCLUDING OVERTIME CHANGE PROPOSALS, IN THIS WEEK'S “FMIA” COLUMN - NBC Sports PressboxNBC Sports Pressbox
NFL announces 2019 playing rules proposals
Bills don't submit rule change suggestion for overtime, three others
Why does the NFL even have a clock in playoff overtime? They will play until someone wins. - Quora