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withdrawn,object_id PHMSA-2017-0019-0005,PHMSA,PHMSA-2017-0019,U.S. DOT PHMSA - Notice Regarding the Requalification Period for DOT Specification Cylinders,Other,Letter(s),2017-12-07T05:00:00Z,2017,12,2017-12-07T05:00:00Z,,2017-12-07T19:42:12Z,,0,0,0900006482ceea16 PHMSA-2017-0019-0004,PHMSA,PHMSA-2017-0019,U.S. DOT/PHMSA-Acceptance Letter,Other,Acknowledgement Letter/Receipt,2017-11-14T05:00:00Z,2017,11,2017-11-14T05:00:00Z,,2017-11-14T15:53:51Z,,0,0,0900006482c73397 PHMSA-2017-0019-0003,PHMSA,PHMSA-2017-0019,U.S. DOT/PHMSA - Acceptance Letter,Other,Acknowledgement Letter/Receipt,2017-03-16T04:00:00Z,2017,3,2017-03-16T04:00:00Z,,2017-03-16T18:22:40Z,,0,0,0900006482509dcd PHMSA-2017-0019-0002,PHMSA,PHMSA-2017-0019,U.S. DOT/PHMSA - P-1696- NPGA Petition for Rulemaking,Other,Petition for Rulemaking,2017-02-21T05:00:00Z,2017,2,2017-02-21T05:00:00Z,,2017-02-21T21:08:11Z,,0,0,09000064824d0abe PHMSA-2017-0019-0001,PHMSA,PHMSA-2017-0019,U.S. DOT/PHMSA - Acknowledgment Letter,Other,Acknowledgement Letter/Receipt,2017-02-13T05:00:00Z,2017,2,2017-02-13T05:00:00Z,,2017-02-13T15:16:19Z,,0,0,09000064824ba907