Little League Baseball® has decided to adopt the USA Baseball bat standard for mandated use effective January 1, 2018. Little League-approved bats can be used through December 31, 2017, and our current bat regulations will be in effect until then. That includes the moratorium prohibiting the use of all 2 ¼ inch barrel baseball bats constructed with composite material in the barrel, unless approved. Visit LittleLeague.org for detailed information.
THIS MEANS THAT ANY BAT PURCHASED TODAY MAY NOT MEET THESE NEW STANDARDS IN 2018.
Rule 1.10 - Baseball
The bat must be a baseball bat which meets Little League specifications and standards as noted in this rule. It shall be a smooth, rounded stick and made of wood or of material and color tested and proved acceptable to Little League standards.
Little League (Majors) and below:
It shall not be more than thirty-three (33) inches in length nor more than two and one-quarter (2¼) inches in diameter. Non-wood bats shall be labeled with a BPF (bat performance factor) of 1.15 or less;
EXCEPTION: For the Little League (Majors) and below, for regular season play and Tournament, composite bats are prohibited unless approved by Little League International.