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withdrawn,object_id PHMSA-2012-0137-0002,PHMSA,PHMSA-2012-0137,U.S. DOT/PHMSA - Research Design Introduction,Other,Additional Information,2012-07-05T04:00:00Z,2012,7,2012-07-05T04:00:00Z,,2024-11-07T22:42:54Z,,1,0,090000648107ae61 PHMSA-2012-0137-0003,PHMSA,PHMSA-2012-0137,U.S. DOT/PHMSA - 811 Draft Survey,Other,Assessment Document or Analysis,2012-07-05T04:00:00Z,2012,7,2012-07-05T04:00:00Z,,2024-11-07T22:42:55Z,,1,0,090000648107ae62