§ 57.4461 - Gasoline use restrictions underground.

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§ 57.4461 Gasoline use restrictions underground.

If gasoline is used underground to power internal combustion engines -

(a) The mine shall be nongassy and shall have multiple horizontal or inclined roadways from the surface large enough to accommodate vehicular traffic;

(b) All roadways and other openings shall connect with another opening every 100 feet by a passage large enough to accommodate any vehicle in the mine or alternate routes shall provide equivalent escape capabilities; and

(c) No roadway or other opening shall be supported or lined with wood or other combustible materials.

                    
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§ 57.4461 - Gasoline use restrictions underground.

§ 57.4461 Gasoline use restrictions underground.