About: http://webisa.webdatacommons.org/408427805

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Subsection (a) of this section requires that coal dust, float coal dust, loose coal, and other combustible materials be cleaned up so that it will not accumulate in active underground workings or on electric equipment.
http://www.w3.org/ns/prov#wasQuotedFrom	msha.gov