§57.22604. Blasting from the surface (II-B mines).
30 C.F.R. § 57.22604
All development, production, and bench rounds shall be initiated from the surface after all persons are out of the mine. Persons other than those designated by the mine operator to make methane tests shall not enter the mine until all blast areas have been tested for methane.
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.