Unless an exemption has been obtained in accordance with 4VAC25-60-40, roof bolting machines and continuous mining machines with integral roof drills used in a working face in a coal mine shall have an approved ATRS system. Alternative methods of temporarily supporting the roof may be approved by the Chief.
4 Va. Admin. Code § 25-60-20
Statutory Authority
§§ 45.1-161.3, 45.1-161.106 and 45.1-161.114 of the Code of Virginia.