All persons in underground workings of a gassy mine are prohibited from intentionally creating any arc, spark or open flame, except those that cannot be avoided in the normal performance of work.
225 ILCS 705/21.06
All persons in underground workings of a gassy mine are prohibited from intentionally creating any arc, spark or open flame, except those that cannot be avoided in the normal performance of work.
225 ILCS 705/21.06