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withdrawn,object_id FAA-1998-4390-0047,FAA,FAA-1998-4390,Flight Plan Requirements for Helicopter Operations Under Instrument Flight Rules,Proposed Rule,Supplemental Notice of Proposed Rulemaking (SNPRM),1999-07-01T04:00:00Z,1999,7,1999-07-01T04:00:00Z,1999-08-03T03:59:59Z,2024-11-12T03:04:20Z,,1,0,0900006480325670