For teams in the 9 years to 11 years range there must be a minimum of 4 players on the field at any given time. The maximum number of players on the field is 6 field players and 1 goalie.
For teams in the 12 years and older range there must be a minimum of 4 players on the field at any given time. The maximum number of players on the field is 5 field players and 1 goalie.