4 Va. Admin. Code § 25-40-3475

Current through Register Vol. 41, No. 6, November 4, 2024

Section 4VAC25-40-3475 - Blasting in gassy mines

Blasts in gassy mines shall be initiated electrically, and multiple shot blasts shall be initiated with millisecond delay detonators. Permissible blasting units of capacity suitable for the number of holes in a round to be blasted shall be used unless the round is fired from the surface when all persons are out of the mine.

Derived from Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.