The teams submit the names of the participating players at the first Championship Directorate.
The maximum number of players allowed on a Team Registration Form at the beginning of the World Junior Championship is 20 skaters and 3 goalies. The minimum is 15 skaters and 2 goalkeepers.
At the first Directorate meeting, the teams must name at least the minimum number of 15 skaters and 2 goalkeepers.
The remaining players up to the allowed maximum of 20 + 3 must be submitted for players' control two hours before any of the following championship games. Players can be added throughout the tournament until the roster is full.
During a game, a team may enter (dress) 20 skaters and 2 goalkeepers on the Official Game Sheet, with the emergency goalkeeper standing by if a goalkeeper entered to the Official Game Sheet is unable to play.
If the roster is full, an injured player can be replaced by another player from the long list according to pre-defined procedures including medical review. A replaced player cannot return to the tournament.
