Tag Rugby laws (rules) are basically very simple. You have two teams competing to place a single ball on the ground beyond the Try line. The goal is to score as many tries as possible to win the game. Attached to each player is a pair of Velcro tags. When a team is attacking, the player holding the ball can have their tag removed, which stops play. The attacking team will have six (6) attempts to place the ball beyond the try line at which point on Tag 6 the ball is handed to the defending team who are now the attacking team.
When a player is tagged, the defender tagged sets the mark and places the tag on the ground. The attacker must roll the ball back to the scrum half and play continues. During the roll back the defender is not allowed to move from the mark until the scrum half touches the ball. All other players must retreat 7 metres otherwise they may be offside.
Penalties can be awarded for foul play such as early / late tagging of a player, contact which can be deliberate or accidental or being offside. If a penalty is awarded the offending team must retreat 10 metres from where the referee awards the penalty.
You can read all of our laws here
