GroundRules
30 CFR 57.22241: Advance face boreholes (I-C mines).
Where this section sits in the code
- Title 30—Mineral Resources
- CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
- SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH
- PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
- Subpart T—Safety Standards for Methane in Metal and Nonmetal Mines
(a) Boreholes shall be drilled at least 25 feet in advance of a face whenever the work place is within—
(1) 50 feet of a surveyed abandoned mine or abandoned workings which cannot be inspected; or
(2) 200 feet of an unsurveyed abandoned mine or abandoned workings which cannot be inspected.
(b) Boreholes shall be drilled in such a manner to insure that the advancing face will not accidently break into an abandoned mine or abandoned working.
Collected 2026-08-27T02:25:24Z. Source file · JSON