All gassy mines shall be ventilated mechanically.
4 Va. Admin. Code § 25-40-5570
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.
All gassy mines shall be ventilated mechanically.
4 Va. Admin. Code § 25-40-5570
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.