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withdrawn,object_id PHMSA-2011-0344-0002,PHMSA,PHMSA-2011-0344,U.S. DOT/PHMSA - Additional Information,Other,Additional Information,2012-03-29T04:00:00Z,2012,3,2012-03-29T04:00:00Z,,2012-03-29T14:52:57Z,,0,0,0900006480fdfb17