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withdrawn,object_id EPA-HQ-OAR-2004-0004-0067,EPA,EPA-HQ-OAR-2004-0004,"B. Nicholson and D. Randall, MRI, to R. Myers, EPA/ISB. November 4, 1987, Rationale for emission factor selection [A-91-65 II-B-29]",Supporting & Related Material,Letter,2017-03-23T04:00:00Z,2017,3,,,2017-03-23T18:54:52Z,,0,0,09000064823bf891