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withdrawn,object_id DOT-OST-2004-18692-0050,DOT,DOT-OST-2004-18692,Application of United Air Lines for Renewal of Exemption,Other,Correspondence,2008-04-25T04:00:00Z,2008,4,2008-04-25T04:00:00Z,,2013-07-27T21:27:26Z,,0,0,0900006480524ae6 DOT-OST-2004-18692-0049,DOT,DOT-OST-2004-18692,"Frontier Airlines, Inc.",Other,Notice,2008-04-03T04:00:00Z,2008,4,2008-04-03T04:00:00Z,,2013-08-11T02:31:23Z,,0,0,090000648042d499