30 CFR § 75.202
Protection from falls of roof, face and ribs
July 29, 2020
(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.