30 CFR § 56.7055
Intersecting holes.
Holes shall not be drilled where there is a danger of intersecting a misfired hole or a hole containing explosives blasting agents, or detonators.
[56 FR 46508, Sept. 12, 1991]
30 CFR § 56.7055
Intersecting holes.
Holes shall not be drilled where there is a danger of intersecting a misfired hole or a hole containing explosives blasting agents, or detonators.
[56 FR 46508, Sept. 12, 1991]
