Some teams in the NHL do not have a captain. Rule 6.2 of the 2008–09 Official NHL Rulebook says that "[only] when the Captain is not in uniform, the Coach shall have the right to designate three Alternate Captains. This must be done prior to the start of the game." Many NHL teams with a captain select more than two alternate captains and change who wears the "A" for different games during the season.