Section R11-1-1863. Shots or rounds shall not be fired  


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  • Shots or rounds shall not be fired in places where flammable gas can be detected with a permissible flame safety lamp, or where 1.0% or more of flammable gas can be detected by any other Bureau of Mines approved device or method, at a point not less than 12 inches from the back, face, and rib.

Historical Note

Former Rule 18:63.