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withdrawn,object_id PHMSA-2016-0164-0003,PHMSA,PHMSA-2016-0164,U.S. DOT/PHMSA - Acceptance Letter,Other,Action Memo or Letter,2017-09-21T04:00:00Z,2017,9,2017-09-21T04:00:00Z,,2017-09-21T15:05:41Z,,0,0,0900006482b6433b PHMSA-2016-0164-0002,PHMSA,PHMSA-2016-0164,U.S. DOT/PHMSA - Acknowledgement Letter,Other,Acknowledgement Letter/Receipt,2017-01-06T05:00:00Z,2017,1,2017-01-06T05:00:00Z,,2017-01-06T16:50:12Z,,0,0,090000648244ec30 PHMSA-2016-0164-0001,PHMSA,PHMSA-2016-0164,Petition for Final Specification for Tank Cars Used to Transport TIH Materials,Other,Petition(s),2016-12-22T05:00:00Z,2016,12,2016-12-22T05:00:00Z,,2016-12-22T20:11:51Z,,0,0,0900006482431dda