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withdrawn,object_id PHMSA-2012-0082-0180,PHMSA,PHMSA-2012-0082,Hazardous Materials: Enhanced Tank Car Standards and Operational Controls for High-Hazard Flammable Trains,Proposed Rule,Notice of Proposed Rulemaking (NPRM),2014-08-01T04:00:00Z,2014,8,2014-08-01T04:00:00Z,2014-10-01T03:59:59Z,2014-12-11T16:09:42Z,2014-17764,0,0,09000064817f4e6a PHMSA-2012-0082-0073,PHMSA,PHMSA-2012-0082,Hazardous Materials: Rail Petitions and Recommendations To Improve the Safety of Railroad Tank Car Transportation,Proposed Rule,Extension of Comment Period,2013-11-05T05:00:00Z,2013,11,2013-11-05T05:00:00Z,2013-12-06T04:59:59Z,2015-03-20T02:03:48Z,2013-26402,0,0,0900006481470c80 PHMSA-2012-0082-0016,PHMSA,PHMSA-2012-0082,Hazardous Materials: Rail Petitions and Recommendations to Improve the Safety of Railroad Tank Car Transportation,Proposed Rule,Notice of Proposed Rulemaking (NPRM),2013-09-06T04:00:00Z,2013,9,2013-09-06T04:00:00Z,2013-11-06T04:59:59Z,2014-10-25T00:36:36Z,2013-21621,0,0,09000064813e0a20