What is the maximum number of players that a national member federation can declare before a championship begins?

The maximum number of players that a national member federation can declare before a championship begins is twelve. This rule aligns with the regulations set forth by FIBA, which aims to standardize participation across international competitions. Declaring twelve players allows teams to have a well-balanced roster while also maintaining the logistical aspects of managing players during a tournament.

Having a defined limit prevents oversaturation and ensures that all teams have a fair opportunity in championships. The specific number of twelve is also practical, as it accommodates the necessary depth for competition while allowing for potential injuries or substitutions during games. This rule underscores the importance placed on organized team composition in international basketball events.