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withdrawn,object_id PHMSA-2019-0233-0003,PHMSA,PHMSA-2019-0233,Letter in Response - P-1738,Other,Letter(s),2021-08-12T04:00:00Z,2021,8,2021-08-12T04:00:00Z,,2021-08-12T21:46:58Z,,0,0,0900006484c4d91e PHMSA-2019-0233-0002,PHMSA,PHMSA-2019-0233,US DOT/PHMSA- Acknowledgment Letter,Other,Acknowledgement Letter/Receipt,2019-12-17T05:00:00Z,2019,12,2019-12-17T05:00:00Z,,2019-12-17T18:56:33Z,,0,0,0900006484220ff1 PHMSA-2019-0233-0001,PHMSA,PHMSA-2019-0233,P-1738 - COSTHA - Definition of a Liquid,Other,Petition for Rulemaking,2019-12-13T05:00:00Z,2019,12,2019-12-13T05:00:00Z,,2019-12-13T21:39:47Z,,0,0,09000064842085c6