ART. 1 . . . Each basket ring must be securely attached to the backboard/support system with a ring-restraining device. Such a device must ensure that the basket stays attached in the event a glass backboard breaks. Each basket ring must have its upper edge 10 feet above and parallel to the floor and must be equidistant from the vertical edges of the backboard. The nearest point of the inside edge of the ring must be 6 inches from the plane of the face of the backboard.
ART. 2 . . . Positive-lock breakaway, flex breakaway and fixed rings are legal. Breakaway basket rings must have rebound characteristics similar to those of fixed rings. The pressure-release mechanism should ensure these characteristics, as well as protect both the ring and backboard. The design of the ring and its construction should ensure player safety.
ART. 3 . . . For those rings with a breakaway mechanism, the pressure release mechanism must be preset so that rings do not deflect more than ½ inch when subjected to static load of 50 pounds and may be sealed or field adjustable. When released, the positive-lock breakaway ring must not rotate more than 30 degrees below the original horizontal position. After release and with the load no longer applied, the ring must return automatically and instantaneously to the original position.
NOTE: It is recommended that schools have the basket rings tested for rules compliance.