Normally an NBA team can have a maximum of 15 players on its roster during a season (and up to 20 during the offseason). A team normally has 12 or 13 players on its Active List, who are eligible to play in games, and can have as few as 11 for up to two weeks at a time. Any remaining players must be on the team's Inactive List, and are ineligible to play in games. Teams temporarily can have four players on their Inactive List (bringing their roster size to 16) with league approval in the event of a hardship1.
1 A hardship can be deemed to exist when a team has four players who are sick or injured and have missed at least three games, and will continue to be unable to play. If a hardship is granted, the hardship ends when one of the sick or injured players is physically able to resume playing. The team must then release player(s) to get back to the roster limit, although teams have the option to retain the hardship player and release a different player to get back to the limit.
