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withdrawn,object_id EPA-R07-OAR-2017-0208-0012,EPA,EPA-R07-OAR-2017-0208,Approval of Implementation Plans; State of Iowa; Elements of the Infrastructure SIP Requirements for the 2010 Nitrogen Dioxide National Ambient Air Quality Standard (NAAQS),Rule,Final Rule,2018-03-22T04:00:00Z,2018,3,,,2018-03-22T13:08:28Z,2018-05537,0,0,090000648303e64c