When is it permissible for players to wear distinguishing features during the match?

Players are allowed to wear distinguishing features during a match when authorized by the referee. This can include items like headgear, braces, and other accessories that help to identify players or meet safety requirements. The referee has the discretion to decide when such features are appropriate, ensuring that they do not pose a safety hazard to the player or others on the field.

Permitting distinguishing features helps to maintain clarity for players, officials, and spectators regarding team identification and player roles. For example, in cases of injury or specific needs, players may require certain gear which can be authorized by the referee to ensure both safety and compliance with the rules of the game.

The other options suggest either permissibility without restrictions, limited to warm-ups, or total disallowance, which do not align with the governing rules of the match that prioritize both safety and proper conduct on the field.