2018 USA Bat Standard

Effective January 1, 2018

Updated Saturday April 7, 2018 by Nashua Cal Ripken.

New Youth USA Bat Standard

On January 1, 2018, a new method for measuring bat performance ("USABat") will be implemented by every youth baseball organization across the world.  This new method will establish a wood-like standard for all youth baseball leagues.

This new standard means that all non-USA Bat are illegal to use as of January 1, 2018. Moving forward, the only bats allowed in most youth baseball organizations are ones that comply with the following:



  • USA Baseball Marking

  • 2 5/8" Barrel Maximum


Cal Ripken Minors, AAA, and Majors players (using hard baseballs) will need to use approved bats for 2018. Approved bats will have the USA Baseball Marking


The only exception to this rule is T-Ball and Rookies (using safe-tee-core balls).  All bats at that level require a USABat seal, available at: usabaseballshop.com/products/usabat-tee-ball-sticker?variant=44877922632

The national governing body for the sport of baseball in the US, USA Baseball, established a Bat Study Committee of leading scientists.  These scientists conducted theoretical modeling, field testing and lab testing on baseball bats in the disciplines of physics, acoustics, and sports medicine. This committee shared its findings with the national member organizations, including Babe Ruth/Cal Ripken, who then endorsed the new USABat standard.