Effective with the 2017-18 season, the maximum number of timeouts per game will decrease from 18 to 14. In addition, during the last three minutes of a game, teams will be limited to two team timeouts each instead of the previous rule that allowed three per team in the last two minutes.

-Each team will have seven timeouts per game, with no restrictions per half.
-All team timeouts will be 75 seconds. In the previous format, “full” timeouts were 90 seconds and “20-second” timeouts were 60 seconds. Both “full” and “20-second” timeouts have been replaced by team timeouts.
-All four periods will have two mandatory timeouts, which will take place after the first stoppage under the seven- and three-minute marks.
-The under-nine-minute mandatory timeouts in the second and fourth periods will be eliminated.
-Each team can enter the fourth period with up to four team timeouts.
-Each team will be limited to two team timeouts after the later of (i) the three-minute mark of the fourth period or (ii) the resumption of play after the second mandatory timeout of the fourth period.
-Each team will have two team timeouts per overtime period; previously teams had three.

-Referees will assess a delay-of-game violation if a free throw shooter ventures beyond the three-point line between attempts.
-Halftime will last 15 minutes for all games, beginning immediately upon expiration of the second period. A delay-of-game penalty will be issued if a team is not ready to start play at the expiration of the halftime clock.