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withdrawn,object_id PHMSA-2011-0059-0004,PHMSA,PHMSA-2011-0059,U.S.DOT/PHMSA - Acknowledgement Letter/Receipt,Other,Acknowledgement Letter/Receipt,2012-12-03T05:00:00Z,2012,12,2012-12-03T05:00:00Z,,2012-12-03T14:13:29Z,,0,0,090000648117ad49 PHMSA-2011-0059-0003,PHMSA,PHMSA-2011-0059,U.S. DOT/PHMSA - Letter in Response,Other,Letter(s) in Opposition,2011-05-24T04:00:00Z,2011,5,2011-05-24T04:00:00Z,,2013-07-27T23:53:02Z,,0,0,0900006480c7a1a4 PHMSA-2011-0059-0002,PHMSA,PHMSA-2011-0059,U.S. DOT/PHMSA - Acknowledgement Letter,Other,Acknowledgement Letter/Receipt,2011-04-04T04:00:00Z,2011,4,2011-04-04T04:00:00Z,,2011-04-04T16:34:51Z,,0,0,0900006480c146f7 PHMSA-2011-0059-0001,PHMSA,PHMSA-2011-0059,Association of American Railroads - Petition - 1577,Other,Petition(s),2011-03-23T04:00:00Z,2011,3,2011-03-23T04:00:00Z,,2013-08-11T03:13:46Z,,0,0,0900006480c0cf50