15 APRIL 2019


As part of organizational initiatives, both the WBSC and USA Softball have developed updated bat certification stamps to replace their former ISF and ASA stamps. Both the new and the former WBSC and USA Softball certification stamps will continue to be accepted as detailed below.

World Baseball Softball Confederation

With the transition from the ISF to the WBSC, new bat certification stamps have been developed for international play. The new logo will begin to appear on newly manufactured bats this year. Bats with the older 2005 stamp will continue to be accepted for competition. Bats must also be on the WBSC certified bat list.               2019 WBSC Old and New

 USA Softball

USA Softball has developed new stamps to transition from their ASA 2004 and ASA 2013 stamps. These stamps are equivalent to the former stamps as shown below and will begin to appear on newly manufactured bats beginning this season. Bats with the older 2000, 2004 and 2013 stamps will continue to be accepted as previous under Softball Canada rules. All bats must continue to remain on the approved bat list to be certified for use.
      2019 USA Softball - All

  2019 USA Softball - New FP Only

The USSSA certification stamp remains accepted for all levels of Slo-Pitch. 

Slo-Pitch ONLY

 For more details please refer to the updated Bat Check Protocol / Approved Bat information at

Jeff Whipple
National Director of Umpires