American Football Rules IFAF Approved Ruling 3-2-3:I-VIII

I. During the extension of a period after the ball is ready for play and before the snap, Team A commits a foul. RULING: Dead-ball foul. Team A is penalised for the foul and is entitled to complete the down. [Cited by 3-2-3-a]
II. Time expires during Team A’s free kick. A1 is offside on the kick. RULING: Penalty – Five yards from the previous spot, the end of Team B’s run, or the touchback spot, and the period is extended. Repeat the free kick or Team B is awarded an untimed down. [Cited by 3-2-3-a]
III. Time expires during Team A’s attempted field goal. Team B was offside. RULING: Penalty – Five yards from the previous spot, the period is extended (Rule 10-2-2-d-4-a). [Cited by
3-2-3-a]
IV. A Team A player interferes with the opportunity to catch a kick (not a try) during a down in which time expires. RULING: Penalty – 15 yards from the spot of the foul. The period is
extended. [Cited by 3-2-3-a]
V. Team A scores a touchdown during a down in which time expires. After the touchdown, but before the try, either team fouls. RULING: The period is extended only for the try. The penalty may be enforced on the try or the succeeding kickoff, which is in the next period. [Cited by 10-2-5-c, 3-2-3-a]
VI. Team A scores a touchdown during a down in which time expires. During Team A’s successful try, Team B fouls. RULING: The period is not extended for the kickoff. Team A may
accept the penalty and repeat the try, or decline the penalty and accept the score. Penalties for personal fouls and unsportsmanlike conduct are enforced on the subsequent kickoff or the succeeding spot in extra periods. [Cited by 10-2-5-e, 3-2-3-a, 8-3-3-b-1]
VII. Team A scores a touchdown during a down in which time expires. After the try ends, either team commits a dead-ball foul. RULING: The try may be repeated for an accepted
penalty if a live-ball foul occurred during the try; the penalty for the dead-ball foul will then also be enforced on the repeated try. The period is not extended to enforce a penalty for a dead-ball foul. If accepted, this penalty must be enforced on the kickoff to start the next period or at the succeeding spot in extra periods [Cited by 10-2-5-e, 3-2-3-a, 8-3-3-d-2,
8-3-5]
VIII. Time expires in the first half on a play in which A12 is beyond the neutral zone when he completes a pass to A88 in Team B’s end zone. RULING: Team B accepts the penalty to nullify the score, but the period is not extended because the penalty includes loss of down. The first half ends. [Cited by 3-2-3-a-1, 3-2-3-a]