Effective 2009 regular season and tournament play:
1. Aluminum baseball bats used in the 12 year old and younger divisions of play must be printed with a BPF (Bat Performance Factor) of 1.15 or less.
2. Baseball bats used in the Junior Division of play can not exceed 2 5/8" diameter.
3. Aluminum baseball bats in the Senior and Big League Divisions of play must be printed with "BESR".
