1-5-3a(5)a: Solid-colored towels now legal.
1-6: Use of communication devices expanded.
2-4-1: Definition of a catch clarified.
3-5-10d: Loss of helmet after the down clarified.
6-5-6 PENALTY; 2-9-2; 5-2-1, 2; 6-5-4; 10-2-4b: Kick catching interference penalty added.
7-5-10 PENALTY; Table 7-5: Pass interference penalties revised.
8-3-3: Score on a try clarified.
9-3-8c (NEW): Blocking on free kicks revised.
9-4-3l (NEW): Initiating contact with a helmetless opponent is now an illegal personal contact foul.
9-6-4g (NEW): Players continuing to play without a helmet is now illegal participation.
2013 EDITORIAL CHANGES
Field Diagrams; 1-2-3b NOTES 2; 1-2-3f; 1-2-3l; 1-5-2b; 1-5-3c(2); 1-5, 1-6 PENALTY (Deleted); 1-7; 2-6-2a, b; 2-13-2; 2-32-5b; 2-34-2; 3-5-8c; 3-6-3; 7-5-2c; Table 7-5-2e; 9-3-8; 9-4 PENALTY; 9-8-1f NOTE; 9-8-1g, h; 9-8 PENALTY; Football Fundamentals - II-5, IX-6, X-6-8; Resolving Tied Games – 10-4-3; Nine-, Eight- and Six-Player Rules Differences; PENALTY SUMMARY; Official Football Signals – 40, 43.
2013 POINTS OF EMPHASIS
1. Prohibition on Contact to and with the Helmet
2. Reconditioning and Recertification of Football Equipment
3. Free Blocking Zone Enforcement – Consistent Enforcement of Blocking Below the Waist