A borrowed player who has taken the court, must play the entire game. If your own player arrives late, they may take the court but not at the expense of the borrowed player.
Cadet 1 and IJA and IJB graded players may only play as a borrowed player in Division 6 and higher.
All other IJ players who are 14 years of age on the day of play can play in any cadet or senior grade.
Netta and Junior Players can only play up in any age group more more than 2 years old than they are on the day of play.
Clubs with teams in the same grade cannot interchange players between the teams.