Text in force at 23-63: from 23-22, effective 14 Dec 1978.
(a) The rated strength of safety belts and harnesses may not be less than that corresponding with the ultimate load factors specified in Sec. 23.561(b), considering the dimensional characteristics of the belt and harness installation for the specific seat or berth arrangement.
(b) For safety belts for berths parallel to the longitudinal axis of the airplane, the forward load factor specified in Sec. 23.561(b) need not be applied.
[(c) Each safety belt must be equipped with a metal to metal latching device.]