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withdrawn,object_id PHMSA-2014-0128-0003,PHMSA,PHMSA-2014-0128,U.S. DOT/PHMSA - Letter in Response - P-1640,Other,Response(s),2015-06-04T04:00:00Z,2015,6,2015-06-04T04:00:00Z,,2015-06-04T19:16:01Z,,0,0,0900006481b18215 PHMSA-2014-0128-0002,PHMSA,PHMSA-2014-0128,U.S. DOT/PHMSA - Acknowlegement Letter,Other,Acknowledgement Letter/Receipt,2014-10-29T04:00:00Z,2014,10,2014-10-29T04:00:00Z,,2014-10-29T14:44:22Z,,0,0,09000064819020af PHMSA-2014-0128-0001,PHMSA,PHMSA-2014-0128,U.S. DOT/PHMSA - P-1640 Acknowledgement Letter,Other,Acknowledgement Letter/Receipt,2014-10-10T04:00:00Z,2014,10,2014-10-10T04:00:00Z,,2014-10-10T17:40:18Z,,0,0,090000648189db10