23 chapters · 639 sections in this title.
Va. Code Ann. § 45.2-838 Coursing of air
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A. The main intake and return air currents of a drift or slope mine shall not be in a single partitioned opening. B. Every entry driven in coal shall be in a set of two or more entries. C. Every transformer station, battery-charging station, substation, rectifier, and water pump …
Va. Code Ann. § 45.2-839 Actions for excessive methane
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A. Tests for methane concentration under this section shall be made by certified or qualified persons trained in the use of an approved detecting device that is properly maintained and calibrated. Tests shall be made at least one foot from the roof, face, ribs, and floor. B. If a…
Va. Code Ann. § 45.2-840 Crosscuts
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A. Crosscuts shall be made between entries and between rooms as provided in the approved roof control plan. B. Every crosscut between an intake and a return air course shall be closed, except the one nearest the face. A crosscut between rooms shall be closed where necessary to pr…
Va. Code Ann. § 45.2-841 Permanent stoppings
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A. Permanent stoppings shall be built and maintained: 1. Between each intake and return air course, except that temporary controls may be used in any room that is located 600 feet or less from the centerline of the entry from which the room was developed. Unless otherwise approve…