Bat Guidelines for USA Baseball Events

AGE GROUP RULE ASSOCIATED EVENTS
10U/11U/12U • No longer than 32 inches
• No specific weight/length ratio limit
• Wood or metal 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
12U Open Development Camps
12U National Open
13U/14U • No longer than 34 inches
• No specific weight/length ratio limit
• Wood or metal is allowed
• Non-wood and multi-piece wood bats must be BBCOR or USABat certified
• Barrel diameter for any bat may be no larger than 2 5/8"
14U Championships
14U Cup
13U NTIS
14U NTIS
15U/16U • No longer than 34 inches
• Any BBCOR -3 bat
• or any solid (one piece) wood bat
• or NFHS approved BBCOR wood barrel baseball bat
16U Championships
15U Championships
15U NTIS
16U/17U • No longer than 34 inches
• Any solid (one piece) wood bat
• or NFHS approved BBCOR wood barrel baseball bat
17U Championships
16U Cup
17U Cup
16U NTIS
17U NTIS

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 automatic ejection of the player committing the infraction and the manager of the infracting team. The protesting team can then choose to accept an automatic out or the result of the play. 

Non-Team Related Occurrences 
Players participating in USA Baseball camps or individual based identification events that are found to have committed an infraction will have their participation reviewed by the operating staff and may face expulsion from the event.