§57.22203. Main fan operation (I-C mines).
30 C.F.R. § 57.22203
Main fans shall be operated continuously while ore production is in progress.
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.