30 CFR § 56.16002 Bins, hoppers, silos, tanks, and surge piles. (a) Bins, hoppers, silos, tanks, and surge piles, where loose
unconsolidated materials are stored, handled or transferred shall be-- (a) (1) Equipped with mechanical devices or other effective
means of handling materials so that during normal operations persons are not
required to enter or work where they are exposed to entrapment by the caving
or sliding of materials; and (a) (2) Equipped with supply and discharge operating controls.
The controls shall be located so that spills or overruns will not endanger
persons. (b) Where persons are required to move around or over any facility
listed in this standard, suitable walkways or passageways shall be
provided. (c) Where persons are required to enter any facility listed in this
standard for maintenance or inspection purposes, ladders, platforms, or
staging shall be provided. No person shall enter the facility until the
supply and discharge of materials have ceased and the supply and discharge
equipment is locked out. Persons entering the facility shall wear a safety
belt or harness equipped with a lifeline suitably fastened. A second person,
similarly equipped, shall be stationed near where the lifeline is fastened
and shall constantly adjust it or keep it tight as needed, with minimum
slack.
