79209845.1-161.169Virginia Decodedhttps://vacode.org2016Mines And MiningRequirements Applicable To Underground Coal MinesMine Openings And EscapewaysFire protectionCode 1950, § 45-71.1; 1954, c. 191; 1966, c. 594, § 45.1-95; 1984, c. 228; 1985, c. 395; 1990, c. 372; 1992, c. 360; 1994, c. 28; 1996, c. 774.http://law.lis.virginia.gov/vacode/45.1-161.169//45.1-161.169/45.1/14.3/8/45.1-161.169Shafts and partitions therein shall be as nearly fireproof as is practicable.sectionAA1Where there is danger of fire entering the mine, openings shall have adequate protection against surface fires or hazardous volumes of smoke entering the mine.sectionBB1