Rule 3, Section 3, Article 4

A period shall not be extended by an untimed down if one of the following occurred during a down in which time expires:

a. When the defense fouls during a successful try/field goal and the offended team accepts the results of the play with enforcement of the penalty from the succeeding spot.

b. There was a foul by either team and the penalty is accepted for:

        1. unsportsmanlike fouls,
        2. nonplayer fouls,
        3. fouls that specify a loss of down,
        4. fouls that are enforced on the subsequent kickoff as in Rule 8-2-2, 8-2-3, 8-2-4, 8-2-5; or
        5. fouls for which enforcement, by rule, result in a safety.

NOTE: The score is cancelled in the event of an accepted penalty that specifics a loss of down.

Rule 3, Section 3, Article 3

A period shall be extended by an untimed down if one of the following occurred during a down in which time expires:

a. There was a foul by either team and the penalty is accepted, except for those fouls listed in 3-3-4b.

b. There was a double foul.

c. There was an inadvertent whistle.

d. If a touchdown was scored, the try is attempted unless the touchdown is scored during the last down of the fourth period and the point(s) would not affect the outcome of the game or playoff qualifying.