| AGE GROUP | RULE | ASSOCIATED EVENTS |
|---|---|---|
| 10U/11U/12U | • No longer than 32 inches • No specific weight/length ratio limit • Wood, metal or composite is allowed • Non-wood and multi-piece wood bats must be USABat certified • Barrel diameter for any bat may be no larger than 2 5/8" |
10U Futures Invitational 11U Futures Invitational 11U NTIS 12UÂ NTIS 12U National Team Program |
| 13U/14U/15U | • No longer than 34 inches • Any solid one-piece wood bat, metal or composite is allowed • Any BBCOR -3 bat • or NFHS approved BBCOR wood barrel baseball bat • Barrel diameter for any bat may be no larger than 2 5/8" |
13U Championships 13U NTIS 14U Championships 14U NTIS 13U/14U Athlete Development Program 15U Championships 15U NTIS 15U National Team Program |
| 16U/17U/18U | • No longer than 34 inches • Any solid one-piece wood bat • or NFHS approved BBCOR wood barrel baseball bat • Baum Bats are permitted at all events other than 18U National Team Programming |
16U Championships 16U NTIS 17U Championships 16U/17U National Team Development Program 18U National Team Program |
| Women's National Team | • No longer than 34 inches • Any -3 or -5 bat • Any solid one-piece wood bat, metal or composite is allowed • Barrel diameter for any bat may be no larger than 2 3/4" |
Women's National Open Women's National Team Program All-American Women's Baseball Classic |
USABat Approved List | BBCOR Approved List
Bat Protest Procedure
Teams wishing to protest the use of an illegal bat must notify the umpire before the next batter enters the batter's box. Once the first pitch to the next batter has been thrown, the protest will be considered invalid.
Result of Successful Protest
A successful protest will result in the protesting team's choice of either accepting an automatic out or the result of the play.
Non-Team Related Occurrences
Players participating in USA Baseball individual-based identification events that are found to have committed an infraction will have their participation reviewed by the operating staff and will be asked to retire the illegal bat and resume participation with a USA Baseball approved bat.