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withdrawn,object_id PHMSA-2009-0146-0004,PHMSA,PHMSA-2009-0146,U.S. DOT/PHMSA - Decision/Update P-1540,Other,Agency Response,2011-08-16T04:00:00Z,2011,8,2011-08-16T04:00:00Z,,2011-08-16T14:09:05Z,,0,0,0900006480ede68d PHMSA-2009-0146-0003,PHMSA,PHMSA-2009-0146,U.S. DOT/PHMSA - Response Letter,Other,Response(s),2009-07-27T04:00:00Z,2009,7,2009-07-27T04:00:00Z,,2009-07-27T20:46:54Z,,0,0,09000064809fb95b PHMSA-2009-0146-0002,PHMSA,PHMSA-2009-0146,U.S. DOT/PHMSA - Acknowledgement Letter,Other,Acknowledgement Letter/Receipt,2009-05-22T04:00:00Z,2009,5,2009-05-22T04:00:00Z,,2013-07-27T22:45:20Z,,0,0,09000064809a8fd7 PHMSA-2009-0146-0001,PHMSA,PHMSA-2009-0146,Compressed Gas Association - Petition for Rulemaking - P-1540,Other,Petition for Rulemaking,2009-05-11T04:00:00Z,2009,5,2009-05-11T04:00:00Z,,2013-07-27T22:44:26Z,,0,0,090000648097fde4