Missouri Code of State Regulations
Title 20 - DEPARTMENT OF COMMERCE AND INSURANCE
Division 2040 - Office of Athletics
Chapter 8 - Mixed Martial Arts
Section 20 CSR 2040-8.170 - Weigh-Ins

(1) The weigh-in for professional events along with events including both amateur and professional bouts shall be conducted by the office within forty-eight (48) hours before the contest. Weigh-ins may be conducted more than forty-eight (48) hours prior to the contest with special permission from the office.

(2) Each contestant for mixed martial arts will be weighed in the presence of his/her opponent, a representative of the office, and/or an official representing the promoter, on scales approved by the office at any place designated by the office. Weigh-ins are open to the public. If a contestant cannot be present at the designated time set by the office, a contestant waives his/her rights under this section.

(3) A contestant who fails to make the weight for their designated weight class shall be given up to two (2) hours to make required weight. Any contestant who fails to make the weight shall be disqualified.

(4) The promoter shall have scales available for use by the office. The office may, in its discretion, use the scales furnished by the promoter or use its own scales. All scales furnished by the promoter shall be thoroughly tested and approved by the inspector prior to being used in connection with any contest.

(5) For amateur events only, all weigh-ins must be scheduled no earlier than 10:00 AM on the date of the event. There shall be no weight allowances for amateurs. Amateur contestants must compete within the weight classes listed in 20 CSR 2040-8.150(1). No substitutes may be submitted after the weigh-in has begun unless approved by the office due to special circumstances.