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withdrawn,object_id FAA-1999-4971-0002,FAA,FAA-1999-4971,High Density Airports; Allocation of Slots - Correction,Notice,Notice of Proposed Rulemaking (NPRM),1999-01-20T05:00:00Z,1999,1,1999-01-20T05:00:00Z,1999-01-21T04:59:59Z,2008-01-12T00:36:43Z,,0,0,0900006480329405 FAA-1999-4971-0001,FAA,FAA-1999-4971,High Density Airports; Allocation of Slots - Request for Comments,Notice,Notice of Proposed Rulemaking (NPRM),1999-01-12T05:00:00Z,1999,1,1999-01-12T05:00:00Z,1999-01-13T04:59:59Z,2008-01-12T00:38:08Z,,0,0,0900006480329402