                                 CODE OF VIRGINIA

 EXAMINATION OF MINE FOR EXPLOSIVE GAS AND OTHER HAZARDOUS CONDITIONS (§
45.2-847)

A. Every certified person whose regular duties require him to inspect working
places in any mine for hazardous conditions shall have in his possession and
shall use, when underground, a permissible methane detector or other permissible
device capable of detecting methane and oxygen deficiency.

B. A sufficient number of permissible methane detectors or other permissible
devices capable of detecting methane shall be kept at each mine inby the last
open crosscut. Every miner shall be trained in the operation of such devices.
Every miner working inby the last open crosscut shall be certified by the Board
of Coal Mining Examiners pursuant to &#xA7; 45.2-520 to conduct gas testing.

C. Every methane detector shall be maintained in permissible condition. Every
methane detector shall be calibrated at least monthly in accordance with the
manufacturer&#8217;s recommendations. A record of such calibration shall be made
in a book for this purpose kept at a surface location at the mine and maintained
for one year.

HISTORY: Code 1950, §§ 45-32, 45-33, 45-60.4, 45-68.1, 45-69.7, 45-85.6; 1954,
c. 191; 1966, c. 594, §§ 45.1-35, 45.1-65; 1978, cc. 118, 120; 1994, c. 28, §
45.1-161.231; 1996, c. 774; 1999, c. 256; 2021, Sp. Sess. I, c. 387.