Virginia Administrative Code (Last Updated: January 10, 2017) |
Title 4. Conservation and Natural Resources |
Agency 25. Department of Mines, Minerals and Energy |
Chapter 40. Safety and Health Regulations for Mineral Mining |
Section 2860. Rock-bolt hole drill bits
Latest version.
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Rock-bolt hole drill bits shall be easily identifiable by sight or feel and diameters shall be within a tolerance of 0.030 inches of the manufacturer's recommended hole diameter for the anchor used.
Historical Notes
Derived from VR480-05-1.2 § 15.10, eff. July 19, 1989.
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.