The NFL has implemented seven new rule changes that are effective immediately.

On Tuesday the league's competition committee adopted the 2015 proposal that the line of scrimmage for an extra point will be the 15-yard line.

Two-point conversions will remain at the two-yard line. The new rule also gives the defense the ability to score two points on returns of blocked extra points and two-point conversions when the ball is turned over.

Communication between players and coaches is set to improve dramatically. Offensive and defensive play-callers on coaching staffs will now able to talk with their players using the player-to-coach communication system, regardless of if they are on the field or in the booth.

All chop blocks will be illegal, no matter the circumstances. The rule surrounding horse-collar tackles has also been expanded to be when a player grabs another player above the nameplate on his jersey and pulls him to the ground.

A team will be called for delay of game and penalised if it attempts to call a timeout and is not permitted to do so.

The five-yard penalty for an ineligible receiver touching a forward pass after being out of bounds will be abolished, with the offending team now hit with the loss of a down if that happens.

Lastly, the league has also eliminated multiple spots of enforcement for a double foul after a change of possession.