USA Bat Rules for baseball
Beginning January 1, 2018, the new USA Baseball bat standard will be adopted by Little League and all Little League baseball players will be required to use a bat that has the new USA Bat approval stamp.
USA Baseball has adopted new methods for measuring bat performance in the testing of youth baseball bats. Additionally, Little League has set a new maximum barrel size of 2 and 5/8 inches.
All BPF-1.15 bats will be prohibited beginning with the 2018 season (so be careful purchasing used bats from any source).
For more information, see: