(225 ILCS 705/Art. 24 heading)

(225 ILCS 705/24.01) (from Ch. 96 1/2, par. 2401) Sec. 24.01. Coal dust and other combustible materials shall not be permitted to accumulate in dangerous quantities in active underground workings of a mine. (Source: Laws 1953, p. 701.)

(225 ILCS 705/24.02) (from Ch. 96 1/2, par. 2402) Sec. 24.02. Where underground mining operations raise an excessive amount of dust into the air, water or water with a wetting agent added to it, or other effective methods, shall be used to allay the dust at its source. (Source: Laws 1953, p. 701.)

(225 ILCS 705/24.03) (from Ch. 96 1/2, par. 2403) Sec. 24.03. All underground mines, except those mines or areas of mines in which the dust is too wet or too high in incombustible content to propagate an explosion, shall be rock-dusted to within 40 feet of all faces. (Source: Laws 1955, p. 2012.)

(225 ILCS 705/24.04) (from Ch. 96 1/2, par. 2404) Sec. 24.04. In mines partially rock-dusted or in mines that are required to start rock-dusting, haulage ways and parallel entries connected thereto by open crosscuts, shall be rock-dusted. Back entries shall be rock-dusted for at least 1,000 feet outby the junction with the first active entry. Inby this junction, the rooms, entries, and crosscuts, shall be rock-dusted. Rock-dusting shall be started at once and completed as herein provided, and the mine shall be rock-dusted as it develops and rock-dusting shall be maintained to the shaft bottom or entrance. (Source: Laws 1953, p. 701.)

(225 ILCS 705/24.05) (from Ch. 96 1/2, par. 2405) Sec. 24.05. Where rock dust is applied, it shall be distributed upon the top, floor and sides of all open places and maintained in such quantity that the incombustible content of the combined coal dust, rock dust and other dust will not be less than 65%. Where methane is present in any ventilating current, the 65% of incombustible content of such combined dust shall be increased 1% for each 0.1% of methane. (Source: Laws 1953, p. 701.)

(225 ILCS 705/24.06) (from Ch. 96 1/2, par. 2406) Sec. 24.06. All rock dust used shall meet the following specifications: 1. All of the dust shall pass through a 20 mesh sieve, and at least 70% shall pass through a 200 mesh sieve. 2. The dust shall not contain more than 5% combustible matter, nor more than 5% free silica. The rock dust should be as light in color as possible. (Source: Laws 1953, p. 701.)