How Instant Replay Will Work

* Coaches will get two challenges a game, with “a replay assistant” to determine if something is to be reviewed in the final two minutes of each half.

* Coaches will have to act in the 40 seconds between the time a play ends and the ball is put back into play again to make the challenge. The referee on the field will then review the play. If he turns down the challenge, the team making it will lose a timeout. If he upholds the challenge, the team will retain the timeout.

* In the final two minutes of each half, the replay assistant--probably a retired official--will stop the game if he sees a call that might be challenged, and the same procedure will be followed. The replay assistant’s challenge will extend into any overtime.

* Replay will be like the old system--applicable to goal-line and sideline plays and possession, but not to penalties.

* The referee on the field will make the final decision.