id,agency_id,docket_id,title,document_type,subtype,posted_date,posted_year,posted_month,comment_start_date,comment_end_date,last_modified,fr_doc_num,open_for_comment,withdrawn,object_id MSHA-2011-0002-0001,MSHA,MSHA-2011-0002,Proximity Detection Systems for Underground Mines,Proposed Rule,,2010-02-01T00:00:00Z,2010,2,,,2011-08-31T14:11:10Z,,0,1,0900006480a886b2