GroundRules
4VAC25-40-5150: Single shaft intakes and returns
Where this section sits in the code
- Title 4. Conservation And Natural Resources
- Agency 25. Department of Energy
- Chapter 40. Safety and Health Regulations for Mineral Mining
- Part XV. Safety and Health Regulations—Underground Only
- Article 11. Gassy Mines
When single shafts are used for intake and return, the curtain wall or partition shall be constructed of reinforced concrete or equivalent and provided with pressure relief devices.
Collected 2026-09-14T04:46:10Z. Source file · JSON