CSAC broadens weight-cutting rules, raises fine for missed weight to 30%

The California State Athletic Commission on March 9 announced new measures aimed at reducing extreme weight cutting in boxing and mixed martial arts, and said it will raise the financial penalty for missing weight from 20% to 30%, effective July 1, 2026.

Chairman Villegas told commissioners the commission will pursue several changes to address dehydration and unsafe weight-loss practices. He said the commission will begin licensing fighters by specific weight class on physical-exam forms; require verification by a medical doctor that a fighter’s weight class is appropriate given natural walking weight and dehydration risk; expand video monitoring at weigh-ins; perform urine specific-gravity tests to detect water-loading; collect anti-doping samples connected to weigh-ins; and institute mandatory next-day rechecks to monitor rehydration.

“These changes will take effect on July 1, 2026,” Villegas said, calling weight cutting a “growing concern” and urging the commission to “continue to lead on this effort to improve safety.”

The commission framed the steps as an extension of reforms begun in 2016, including first-day weight-gain caps. Commissioners agreed the combination of physician verification and objective urine testing would help limit risky rapid weight loss. Several commissioners also said they wanted a focused amateur training program to educate young athletes and minimize harmful habits formed at lower levels of competition.

The commission did not adopt new statutory language at the meeting; staff and medical advisors will develop the operational rules and testing protocols and return to the commission for any implementing changes or guidance. The commission’s executive office said the penalty change is a policy decision to underscore the seriousness of repeated weight misses and to incentivize compliance while the testing and monitoring regime is phased in.

Next steps: staff will draft the operational details for the testing and recheck procedures and present implementation timelines to the commission for formal adoption and administrative guidance.