NCAA horse-collar tackle rule changes for 2017. Here's how.

History of The Tackle - Atavus

Did officials miss a horse-collar tackle of Bills QB Josh Allen by Haason Reddick? - Yahoo Sports

NFL competition committee proposes hip-drop tackle ban, radical change to kickoffs

Jace Westbrook (@jacewestbrook) / X

There's More Than Rules in Regulating Concussions - Bill of Health

2017's 4 new college football rules, briefly explained by the head of refs

Need-to-Know Rule Changes for 2017 College Football Season

Need-to-Know Rule Changes for 2017 College Football Season

College football's controversial targeting rule won't change in 2017

NCAA Football Rules Committee recommends safety changes, but none for targeting

2017's 4 new college football rules, briefly explained by the head of refs

Safety the common thread in rule changes (copy), Preston County Sports