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withdrawn,object_id EPA-R08-OAR-2012-0352-0006,EPA,EPA-R08-OAR-2012-0352,Receipt of Delivery - Billings MP FR,Supporting & Related Material,,2015-04-09T04:00:00Z,2015,4,,,2015-04-14T01:18:41Z,,0,0,0900006481a9778a EPA-R08-OAR-2012-0352-0005,EPA,EPA-R08-OAR-2012-0352,Air Quality State Implementation Plans; Approvals and Promulgations: Montana Second 10-Year Carbon Monoxide Maintenance Plan for Billings,Rule,,2015-03-30T04:00:00Z,2015,3,2015-03-30T04:00:00Z,,2015-03-30T13:49:28Z,2015-07227,0,0,0900006481a72dcb EPA-R08-OAR-2012-0352-0002,EPA,EPA-R08-OAR-2012-0352,State Submittal w Billings LMP - 7-13-11,Supporting & Related Material,,2014-12-02T05:00:00Z,2014,12,,,2014-12-02T15:37:20Z,,0,0,090000648191eef6 EPA-R08-OAR-2012-0352-0001,EPA,EPA-R08-OAR-2012-0352,Air Quality State Implementation Plans; Approvals and Promulgations: Montana; Second 10-Year Carbon Monoxide Maintenance Plan for Billings,Proposed Rule,,2014-12-02T05:00:00Z,2014,12,2014-12-02T05:00:00Z,2015-01-03T04:59:59Z,2014-12-02T15:34:12Z,2014-28390,0,0,0900006481953da2 EPA-R08-OAR-2012-0352-0003,EPA,EPA-R08-OAR-2012-0352,MT Alternative Monitoring Strategy Submittal - 6-22-12,Supporting & Related Material,,2014-12-02T05:00:00Z,2014,12,,,2014-12-02T15:38:11Z,,0,0,090000648191eef8 EPA-R08-OAR-2012-0352-0004,EPA,EPA-R08-OAR-2012-0352,Supplemental Technical Info - Billings and Great Falls - 7-23-14,Supporting & Related Material,,2014-12-02T05:00:00Z,2014,12,,,2014-12-02T15:36:20Z,,0,0,090000648191eef9