Which option would make a bat illegal under NFHS rules?

• A. Painted logos only
• B. A bat that passes labeling standard
• C. Corked
• D. Made with NFHS labeling and standard construction

Answer: (C)

Under NFHS rules, a bat becomes illegal if it has been altered in a way that changes how it performs or compromises its labeling and construction standards. The example that fits this is corking the bat—filling the interior with cork or another material to make the bat lighter and often hit the ball farther. That kind of modification is explicitly prohibited because it gives an unfair and unsafe advantage.

Painted logos alone do not change the bat’s weight, balance, or certification, so they don’t render a bat illegal as long as the bat still meets the required standards and labeling remains visible. Likewise, a bat that already has NFHS labeling and standard construction is legal, since it conforms to the approved specifications.