Oregon Administrative Rules
Chapter 230 - DEPARTMENT OF STATE POLICE, OREGON STATE ATHLETIC COMMISSION
Division 70 - RING, FENCED AREA AND EQUIPMENT
Section 230-070-0025 - Mixed Martial Arts Fenced Area or Ring

(a) The fenced area must be circular or have at least six equal sides and must be at least 18 feet wide and no larger than 32 feet wide;

(b) The floor of the fenced area must be padded with Ensolite, vinyl or other similar closed-cell foam, with at least a 1-inch layer of foam padding, with a top covering of canvas, duck or similar material tightly stretched and laced to the platform of the fenced area. Material that gathers in lumps or ridges may not be used;

(c) The platform of the fenced area must not be more than four (4) feet above the floor of the building unless approved by an authorized representative of the superintendent and must have suitable steps for the use of the competitors, officials and medical personnel;

(d) Fence posts must be at least six (6) in number and made of metal, extending from the floor of the building to between 6 and 7 feet above the floor of the fenced area, and must be properly padded in a manner approved by an authorized representative of the superintendent;

(e) The fencing used to enclose the fenced area must be made of a material that will prevent a competitor from falling out of the fenced area or breaking through the fenced area, and must be properly padded in a manner approved by an authorized representative of the superintendent;

(f) Any metal portion of the fenced area must be covered and padded and may not be abrasive to the competitors;

(g) The fenced area must have at least two entrances and egresses unless approved by the Administrator;

(h) No obstruction may be placed on a part of the fence which surrounds the area where competitors compete;

(i) The promoter shall have an attendant capable of making emergency repairs, corrections and adjustments to the fenced area, lights or other necessary fixtures available at all times during the event.