All contestants shall wear a mouthpiece during competition. The round may not begin without the mouthpiece. If the mouthpiece is dislodged during competition, the referee shall call time and have the mouthpiece replaced at the first opportune moment, without interfering with the immediate action. The referee may deduct points or disqualify a contestant if the mouthpiece is repeatedly dislodged or it is judged the mouthpiece is being purposely spit out.
Wis. Admin. Code Department of Safety and Professional Services SPS 192.64