The main intake and return air currents in mines shall be in separate shafts, slopes, or drifts.
4 Va. Admin. Code § 25-40-5140
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.
The main intake and return air currents in mines shall be in separate shafts, slopes, or drifts.
4 Va. Admin. Code § 25-40-5140
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.