Since the 2009-10 season, referees have reviewed plays in which they were not reasonably certain whether or not a 24-second violation occurred on a made basket or prior to a foul being called.
When referees are not reasonably certain if a 24-secon violation occurred before a made basket or a foul, they use replay to determine whether the 24-second clock expired:
- Before or after the ball left the shooter’s hand.
- Before or after the illegal contact occurred (if before, 24-second violation is called and no foul).
In the case of a foul, the review takes place immediately so referees can determine if a foul or 24-second violation is the right call.
But when referees use replay to determine whether a basket should be scored, they wait to conduct the replay in most situations. This decision was made by the Competition Committee and Board of Governors’ to lessen the impact of frequent stoppages, including stoppages that might disadvantage the new offensive team after a made field goal.
- If the field goal occurred prior to the third full timeout in the fourth period, the review takes place at the next full timeout or period break following the basket.
- If the field goal occurred after the third full timeout in the fourth period or in overtime, the review takes place at the next clock stoppage, including when the clock stops after made baskets in the last two minutes.
In terms of timing,
During their replay review, referees may also use replay to determine whether:
- The a fouled shooter was attempting a 2- or 3-point field goal,
- The a fouled player committed a boundary line violation,
- The ball went out-of-bounds before the basket was made, or
- Whether any unsportsmanlike acts or unnecessary contact occurred.