16.2 JOINING A RUCK
(a) All players forming, joining or taking part in a ruck must have their heads and shoulders no lower than their hips.
Sanction: Free Kick
(b) A player joining a ruck must bind on a team-mate or an opponent, using the whole arm. The bind must either precede, or be simultaneous with, contact with any other part of the body of the player joining the ruck.
Sanction: Penalty kick
(c) Placing a hand on another player in the ruck does not constitute binding.
Sanction: Penalty kick
(d) All players forming, joining or taking part in a ruck must be on their feet.
Sanction: Penalty kick