ARSD 20:81:04:08. Mouthpiece required

All boxers are required to wear a mouthpiece during competition. The round cannot 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 if the mouthpiece is purposely spit out.