Last week the NFL released their updated Rules book.
2016 NFL Rule Book Highlights:
The home team has the option of having both teams’ benches on the same sideline, running from the 45-yard line to the end zone. If both teams are on the same side of the field the first down marking officials will be on the opposite side of the field.
It is now a delay of game penalty if a team is erroneously granted a timeout.
The offensive and defensive play callers can use the coach-to-helmet communications system regardless of whether the coach is in the booth or on the sideline.
There is no longer a five-yard penalty for illegally touching a pass after being out of bounds and then re-establishing inbounds, but it is a loss of down.
The line of scrimmage for extra-point kicks is permanently the 15-yard line.
Touchbacks on kickoffs are now moved to the 25-yard line.
All chop blocks are illegal.
The horse-collar tackle rule now includes a defender grabbing the jersey at the name plate or above.
A player who gets two fouls for certain kinds of unsportsmanlike conduct is automatically ejected.
Multiple spots of enforcement for a double foul after a change of possession have been eliminated.
Centers are allowed to wear jersey Nos. 50-79, but offensive guards and tackles must be contained to Nos. 60-79.
A detachable kicking toe cannot be used.
On the sideline, the visiting team is allowed 25 credentials for coaches and support staff and 27 for the home team.