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withdrawn,object_id EPA-R03-OAR-2017-0396-0031,EPA,EPA-R03-OAR-2017-0396,"Air Quality State Implementation Plans; Approval and Promulgation: Maryland; 2011 Base Year Inventory for 2008 8-Hour Ozone National Ambient Air Quality Standard for Baltimore, Maryland Nonattainment Area",Rule,,2018-08-09T04:00:00Z,2018,8,2018-08-09T04:00:00Z,,2018-12-07T09:41:44Z,2018-16992,0,0,09000064835f8b96