Section 57.14109 - Unguarded conveyors with adjacent travelwaysUnguarded conveyors next to travelways shall be equipped with-
(a) Emergency stop devices which are located so that a person falling on or against the conveyor can readily deactivate the conveyor drive motor; or(b) Railings which- (1) Are positioned to prevent persons from falling on or against the conveyor;(2) Will be able to withstand the vibration, shock, and wear to which they will be subjected during normal operation; and(3) Are constructed and maintained so that they will not create a hazard.