Current through Register Vol. XLI, No. 24, June 14, 2024
Section 56-17-3 - Control of Coal Dust3.1. In all mines, any accumulation of coal dust containing less than thirty (30) percent moisture located in any operating section, haulageway, conveyor, or back entry shall be rock dusted or dust allayed in order to render said accumulation inert.3.2. Rock dust shall be applied and maintained by manual or mechanical means upon the surface of the mine floor, roof and ribs of all operating sections, haulageways and parallel entries regardless of connection intervals and in all back entries. Rock dust shall be applied to include the last open crosscut of rooms and entries, and to within forty (40) feet of faces.3.3. Rock dust shall be maintained in such quantity that the incombustible content of the mine dust that could initiate or propagate an explosion shall not be less than eighty (80) percent and the incombustible content in return entries shall not be less than eighty (80) percent.