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withdrawn,object_id MSHA-2021-0016-0002,MSHA,MSHA-2021-0016,Petitions for Modification of Application of Existing Mandatory Safety Standards,Notice,,2021-05-28T04:00:00Z,2021,5,2021-05-28T04:00:00Z,2021-06-29T03:59:59Z,2021-05-28T14:20:10Z,2021-11368,0,0,0900006484b40d7a MSHA-2021-0016-0001,MSHA,MSHA-2021-0016,Petitions for Modification: Application of Existing Mandatory Safety Standards,Notice,,2021-05-26T04:00:00Z,2021,5,2021-05-26T04:00:00Z,2021-06-26T03:59:59Z,2021-05-26T19:57:44Z,2021-11074,0,0,0900006484b38642