 At the beginning of every quarter and after a goal has been scored, play starts with a player in the centre position passing the ball from the centre of the court. These "centre passes" alternate between the teams, regardless of which team scored the last goal. When the umpire blows the whistle to restart play, four players from each team can move into the centre third to receive the pass. The centre pass must be caught or touched in the centre third. The ball is then moved up and down the court through passing and must be touched by a player in each adjacent third of the court. Players can hold the ball for only three seconds at any time. It must be released before the foot they were standing on when they caught it touches the ground again. Contact between players is only permitted if it does not impede an opponent or the general play. When defending a pass or shot players must be at least 90 centimetres (35 in) away from the player with the ball. If illegal contact is made, the player who contacted cannot participate in play until the player taking the penalty has passed or shot the ball. If the ball is held in two hands and either dropped or a shot at goal is missed, the same player cannot be the first to touch it unless it first rebounds off the goal.
