GroundRules
4VAC25-40-5060: Gassy mines
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
A mine shall be deemed gassy and thereafter operated as a gassy mine if:
1. Flammable gas emanating from the ore body or the strata surrounding the ore body has been ignited in the mine;
2. A concentration of 0.25% or more, by air analysis, of flammable gas emanating only from the ore body or the strata surrounding the ore body has been detected not less than 12 inches from the back, face, or ribs in any open workings; or
3. The mine is connected to a gassy mine.
Collected 2026-09-14T04:46:10Z. Source file · JSON