Sec. 15.06. Blow-down valves or filling valves shall be located around a corner of the coal pillar except where portable compressor machines are used for breaking down coal.
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/il/chapter-225/act-705/15-06A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Sec. 15.06. Blow-down valves or filling valves shall be located around a corner of the coal pillar except where portable compressor machines are used for breaking down coal.