30 CFR § 75.202 Protection from falls of roof, face and ribs.
(a) The roof, face and ribs of areas where persons work or travel
shall be supported or otherwise controlled to protect persons from hazards
related to falls of the roof, face or ribs and coal or rock bursts.
(b) No person shall work or travel under unsupported roof unless in
accordance with this subpart.
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