§75.201. Definitions.
30 C.F.R. § 75.201
Automated temporary roof support (ATRS) system. A device to provide temporary roof support from a location where the equipment operator is protected from roof falls.
Pillar recovery. Any reduction in pillar size during retreat mining.
Notes, amendments, and revision history
Source
Source: 53 FR 2375, Jan. 27, 1988, unless otherwise noted.
Authority
Authority: 30 U.S.C. 811, 813(h), 957.
Source
Source: 35 FR 17890, Nov. 20, 1970, unless otherwise noted.