New Bat Standard Posted April 1 , 2016 at 9:14pm
Beginning with the 2018 Little League season, non-wood and laminated bats used in the Little League (league ages 12 and below), Intermediate (50-70) Division, and Junior League shall bear the USA Baseball logo signifying that the bat meets the USA Baseball Performance Standard. All BPF – 1.15 bats will be prohibited beginning with the 2018 season. Additionally, starting in 2018, the bat diameter shall not exceed 2-5/8” for these divisions of play.
Senior League and Big League: It shall not be more than 36 inches in length, nor more than 2-5/8 inches in diameter, and if wood, not less than fifteen-sixteenths (15/16) inches in diameter (7/8 inch for bats less than 30”) at its smallest part. The bat shall not weigh, numerically, more than three ounces less than the length of the bat (e.g., a 33-inch-long bat cannot weigh less than 30 ounces).
All non-wood bats used in the Senior/Big Leagues shall meet the Batted Ball Coefficient of Restitution (BBCOR) performance standard, and such bats shall be so labeled with a silkscreen or other permanent certification mark.