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withdrawn,object_id PHMSA-2018-0111-0003,PHMSA,PHMSA-2018-0111,US. DOT/PHMSA - Response Letter,Other,Letter(s),2019-09-24T04:00:00Z,2019,9,2019-09-24T04:00:00Z,,2019-09-24T18:50:04Z,,0,0,0900006483fbdb08 PHMSA-2018-0111-0002,PHMSA,PHMSA-2018-0111,US DOT/PHMSA- Acknowledgement Letter,Other,Acknowledgement Letter/Receipt,2018-12-19T05:00:00Z,2018,12,2018-12-19T05:00:00Z,,2018-12-19T14:46:14Z,,0,0,09000064839b2f4e PHMSA-2018-0111-0001,PHMSA,PHMSA-2018-0111,The Greenbrier Companies- Petition for Rulemaking,Other,Petition(s),2018-12-14T05:00:00Z,2018,12,2018-12-14T05:00:00Z,,2018-12-14T20:51:30Z,,0,0,0900006483996706