4 Va. Admin. Code § 25-40-1070
Prior to drilling large boulders, drills shall be moved to a safe location and positioned securely in place.
§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.
Derived from VR480-05-1.2 § 7.14, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.