Administrative Code

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Virginia Administrative Code
Title 4. Conservation And Natural Resources
Agency 25. Department of Energy
Chapter 40. Safety and Health Regulations for Mineral Mining
11/28/2021

4VAC25-40-5340. Use of air passing through abandoned panels to ventilate.

Air that has passed through an abandoned panel or area which is inaccessible or unsafe for inspection shall not be used to ventilate any working area in such mine. No air which has been used to ventilate any area from which the pillars have been removed shall be used to ventilate any working area in such mine, except that such air, if it does not contain 0.25% by volume or more of methane, may be used to ventilate enough advancing working areas immediately adjacent to the line of retreat to maintain an orderly sequence of pillar recovery on a set of entries.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 15.258, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

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