Each team must name 7 playing members + 1 Impact Player before the start of the match.
Only 7 players shall be on the field at any given time.
The Impact Player can be used only once per match.
The Impact Player may substitute any one player from the playing 7 at any point during the match (before or during the innings).
Once the substitution is made, it is permanent and cannot be reversed.
The substituted player takes no further part in the match in any capacity (batting, bowling, keeping, or fielding).
After substitution, the Impact Player becomes a regular playing member and may bat, bowl, keep wickets, and field like any other player.
The captain must inform the umpire before the substitution is made.
If a team uses the Impact Player more than once in a match, or reverses a substitution, or fields more than 7 players at any time, or uses an ineligible or already-played player, the team may be disqualified, at the discretion of the Tournament Committee.