All division bats must feature the USA Certified Baseball stamp.  

T-Ball - bats must not exceed 26 inches in length, and barrel diameter cannot be larger than 2 1/4 inches. It must be stamped with the USA certification logo.

All Other Divisions - bats (metal or BBCOR) must not exceed 33 inches in length. It must be stamped with the USA certification logo. No T-Ball bats. Solid one-piece wood barrel bats may be used and do not require the USA certification logo. The smallest part of any wood bat (handle) must not be less than 15/16 inches in diameter or not less than 7/8 inches if the bat is less than 30 inches long. Wood bats must be taped or fitted with a sleeve 16 inches from the small end.