GroundRules
4VAC25-40-3250: Installation of ventilation tubing
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 3. Air Quality, Radiation and Physical Agents
When used, ventilation tubing shall be installed so that the air current sweeps the face areas effectively. Maximum distance of the end of the tubing from the face generally shall be 30 feet for blowing and six feet for exhausting.
Collected 2026-09-14T04:46:04Z. Source file · JSON