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The original item was published from 3/10/2023 3:11:14 PM to 5/19/2023 12:05:03 AM.

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Posted on: March 10, 2023

[ARCHIVED] Is Your Baseball Bat an Approved Bat?

Baseball Bats with USA Baseball Mark

Approved Baseball Bats

1.10–(a) The barrel of all aluminum, metal alloy, composite, multi-piece wood bats or single-piece wood bats shall not exceed 2 5/8” inches in diameter nor exceed 33” inches in length.


(1) USA Baseball Bats - All non-wood bats and multi-piece wood bats must be stamped with the USA Baseball mark signifying that the bat meets the bat performance standard established by USA Baseball. USA Baseball is the national governing body of amateur baseball in the United States.

(2) Wood Bats - Solid wood bats made from a single piece of wood do not require the USA Baseball mark but must meet the specifications in Rule 1.10(a).

(3) BBCOR Bats - 2 5/8” BBCOR (-3) certified bats (which do not bear the USA Baseball mark) that meet the Batted Ball Coefficient of Restitution (BBCOR) standard and which do not weigh, numerically, more than three ounces less than the length of the bat (e.g., a 33-inch-long bat cannot be less than 30 ounces) may be used in regular season or tournament play.

(4) All bats stamped “BPF 1.15” are not legal for play in all age divisions.

1.10–(c) Tee Ball Bats – Tee Ball bats will be stamped with the USA Baseball Mark and the language “Only for use with approved tee balls”. Bats stamped for Tee Ball (T-Ball) play can only be used with low compression balls due to the manufacturing standards for these bats. Any bat stamped for Tee Ball (T-ball) play cannot be used in games played using a regular baseball that is pitched to the batter in any division of DYB.

1.10(d) Illegal Bat Penalty: A bat which does not meet the specifications in Rule 1.10 (a) and Rule 1.10 (b) shall be deemed an illegal bat. A batter who uses an illegal bat shall be called out and all runners shall return to the bases occupied by them at the time such batter took his Position in the batter’s box if protested by the opposing team manager prior to the first pitch to the next batter. The bat becomes illegal when the batter receives the first pitch during his turn at bat. He does not have to hit the ball. The batter shall be called out and any runners must return to the base they occupied prior to the first pitch to the batter. 

2nd Penalty: After the first occurrence that a batter is called out for using an illegal bat, if a second batter is called out for using an illegal bat in the same game by the same team the team manager shall be ejected from the game.

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Posted on: January 10, 2021