                                 CODE OF VIRGINIA

 ROCK DUSTING (§ 45.2-852)

A. Every underground area of a mine, except an area in which the coal dust is
too wet or too high in incombustible content to propagate an explosion, shall be
rock-dusted to within 40 feet of every working face, unless such area is
inaccessible or unsafe to enter or unless the Chief or his authorized
representative permits an exception upon his finding that such exception does
not pose a hazard to any miner. Every crosscut that is less than 40 feet from a
working face shall also be rock-dusted.

B. Every other area of a mine shall be rock-dusted if conditions are found by a
proper inspection to be so dusty as to constitute a hazard. If such conditions
are found to exist, the Chief or his authorized representative shall require the
necessary rock dusting to make every such area of the mine safe.

C. Coal dust, including float coal dust deposited on rock-dusted surfaces, loose
coal, and other combustible material, shall be cleaned up and shall not be
permitted to accumulate excessively in active workings or on electric equipment
therein.

HISTORY: Code 1950, § 45-77; 1954, c. 191; 1966, c. 594, § 45.1-67; 1978, c.
120; 1994, c. 28, § 45.1-161.235; 1999, c. 256; 2021, Sp. Sess. I, c. 387.