Here is the official rule from Cal Ripken Babe Ruth Headquarters:
- Approved Bats - Cal Ripken Baseball and Babe Ruth Baseball
- Cal Ripken Division - All non-wood bats must have the USABat Marking. The Barrel Maximum is 2 5/8". No BBCOR Bats are permitted in the Cal Ripken Division. For the T-Ball Division, bats must be marked with the USABat T-Ball Stamp.
- Babe Ruth Baseball 13-15 Division – All non-wood bats must have the USABat Marking or marked BBCOR .50. Bat Barrel - 2 5/8".
- Babe Ruth Baseball 16-18 Division - All non-wood bats MUST be a BBCOR .50 and no greater than a -3. Barrel - 2 5/8".
by: Steve Troscianecki