30 CFR § 57.19073 Hoisting during shift changes.
Rock or supplies shall not be hoisted in the same shaft as persons during
shift changes, unless the compartments and dumping bins are partitioned to
prevent spillage into the cage compartment.
U.S. Department of Labor | Mine Safety and Health Administration (MSHA) | 1100 Wilson Boulevard, 21st Floor | Arlington, VA 22209-3939 www.msha.gov | Telephone: (202) 693-9400 | Fax-on-demand: (202) 693-9401