§57.22223. Crosscuts before abandonment (III mines).
30 C.F.R. § 57.22223
A means of ventilating faces shall be provided before workings are abandoned in unsealed areas, unless crosscuts are provided within 30 feet of the face.
Notes, amendments, and revision history
Authority
Authority: 30 U.S.C. 811.
Source
Source: 52 FR 24941, July 1, 1987, unless otherwise noted.
Authority
Authority: 30 U.S.C. 811.
Source
Source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.