The National Collegiate Athletic Association (NCAA) has advised us that the BBCOR decertification process has been implemented for the Marucci CAT5 33-inch model.
Effective immediately and until further notice, this bat (Marucci CAT5 33" length) should be considered a non-compliant bat and subject to NFHS Baseball Rules 4-1-3b and 7-4-1a. If you have any questions, please feel free to contact your local state association statewide baseball rules interpreter.