2020 PIAA BAT LIST LINK
As in previous seasons, the PIAA follows the NFHS Bat process that is outlined in NFHS Rule 1-5. It also states that bats must have one of the 3 ASA or USA Certification marks and not be on the USA Softball Non-Approved Bat List with Certification Marks. Please note this list only includes bats that at one time were approved with the USA/ASA Bat Certification mark on the bat, but are no longer approved.
Here is the link: https://usa.asasoftball.com/e/BB1P2000.asp