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withdrawn,object_id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-2008-0066-0035,PHMSA,PHMSA-2008-0066,"Permits; Applications, Issuances, etc.: Columbia Gulf Transmission, LLC",Notice,Request for Comments,2025-10-10T04:00:00Z,2025,10,2025-10-10T04:00:00Z,2025-10-28T03:59:59Z,2025-10-16T09:00:29Z,2025-19517,0,0,09000064b8fff016
PHMSA-2008-0066-0034,PHMSA,PHMSA-2008-0066,Columbia Gas Transmission Attachment B,Supporting & Related Material,Supplement,2025-08-29T04:00:00Z,2025,8,,,2025-08-29T21:04:53Z,,0,0,09000064b8f26e3d
PHMSA-2008-0066-0033,PHMSA,PHMSA-2008-0066,Columbia Gas Transmission Attachment A,Supporting & Related Material,Supplement,2025-08-28T04:00:00Z,2025,8,,,2025-08-28T23:40:38Z,,0,0,09000064b8f234cb
PHMSA-2008-0066-0029,PHMSA,PHMSA-2008-0066,"Permits; Applications, Issuances, etc.: Pipeline Safety",Notice,Request for Comments,2025-06-26T04:00:00Z,2025,6,2025-06-26T04:00:00Z,2025-07-29T03:59:59Z,2025-07-29T09:00:15Z,2025-11783,0,0,09000064b8e322a0
PHMSA-2008-0066-0028,PHMSA,PHMSA-2008-0066,New Segment Request,Supporting & Related Material,Supplement,2025-06-25T04:00:00Z,2025,6,,,2025-06-25T19:32:32Z,,0,0,09000064b8e2ee8a
PHMSA-2008-0066-0027,PHMSA,PHMSA-2008-0066,TC Energy - Annual Report,Other,Report,2025-05-07T04:00:00Z,2025,5,2025-05-07T04:00:00Z,,2025-05-21T20:00:40Z,,0,0,09000064b8d08510
PHMSA-2008-0066-0026,PHMSA,PHMSA-2008-0066,Condition 15 - Annual Report for Special Permit,Other,Report,2024-06-05T04:00:00Z,2024,6,2024-06-05T04:00:00Z,,2024-06-05T14:38:34Z,,0,0,090000648659717d
PHMSA-2008-0066-0025,PHMSA,PHMSA-2008-0066,TC Energy -  Condition 15 - Annual Report for Special Permit & Data Integration 2024 for CY 2023,Other,Report,2024-06-05T04:00:00Z,2024,6,2024-06-05T04:00:00Z,,2024-06-05T14:36:49Z,,0,0,0900006486595f23
PHMSA-2008-0066-0023,PHMSA,PHMSA-2008-0066,TC Energy 2022 - 1st Annual Report Columbia Gulf Transmission,Other,Report,2022-07-29T04:00:00Z,2022,7,2022-07-29T04:00:00Z,,2022-07-30T01:56:11Z,,0,0,09000064851f583a
PHMSA-2008-0066-0022,PHMSA,PHMSA-2008-0066,"Columbia Gulf Transmission, LLC Special Permit – Condition 18 Certification",Other,Response(s),2022-07-21T04:00:00Z,2022,7,2022-07-21T04:00:00Z,,2022-07-21T13:01:40Z,,0,0,09000064851d4f38
PHMSA-2008-0066-0021,PHMSA,PHMSA-2008-0066,Columbia Gulf Transmission - Supporting Documents,Other,Supplement (SUP),2021-08-05T04:00:00Z,2021,8,2021-08-05T04:00:00Z,,2021-08-05T18:18:11Z,,0,0,0900006484c28f7c
PHMSA-2008-0066-0020,PHMSA,PHMSA-2008-0066,Columbia Gulf Transmission - Class 1 to 3 Special Permit,Other,Special Permit,2021-07-23T04:00:00Z,2021,7,2021-07-23T04:00:00Z,,2025-06-17T20:03:22Z,,0,0,0900006484c0a98b
PHMSA-2008-0066-0018,PHMSA,PHMSA-2008-0066,"Pipeline Safety: Special Permit; Columbia Gulf Transmission, LLC",Notice,Notice of Intent,2020-10-30T04:00:00Z,2020,10,2020-10-30T04:00:00Z,2020-12-01T04:59:59Z,2025-06-17T20:01:19Z,2020-24108,0,0,0900006484941711
PHMSA-2008-0066-0017,PHMSA,PHMSA-2008-0066,Columbia Gulf – TC Energy - Documents for public comment on petition to renew special permit No:,Other,Additional Information,2020-10-29T04:00:00Z,2020,10,2020-10-29T04:00:00Z,,2025-06-17T20:02:39Z,,0,0,09000064849377d7
PHMSA-2008-0066-0016,PHMSA,PHMSA-2008-0066,Columbia Gulf Transmission - Class Location SP - TN - DEA and Proposed FONSI,Other,Additional Information,2020-10-28T04:00:00Z,2020,10,2020-10-28T04:00:00Z,,2025-06-17T20:03:50Z,,0,0,09000064849378f8
PHMSA-2008-0066-0015,PHMSA,PHMSA-2008-0066,"Draft Report Technical Review of Dent Associated with the Girth Weld at Percy Priest Lake, TN"" (Dent Report), dated March 11, 2016",Other,Report,2016-05-04T04:00:00Z,2016,5,2016-05-04T04:00:00Z,,2025-06-17T20:04:13Z,,0,0,0900006481fa4aa2
PHMSA-2008-0066-0013,PHMSA,PHMSA-2008-0066,Columbia Gas Columbia Gulf - Additional information submitted for SP Renewals,Other,Special Permit,2015-08-19T04:00:00Z,2015,8,2015-08-19T04:00:00Z,,2015-08-19T14:34:39Z,,0,0,0900006481c27ce1
PHMSA-2008-0066-0014,PHMSA,PHMSA-2008-0066,Columbia Pipeline Group - Seam Threat Analysis Report for SP Renewal,Other,Report,2015-08-19T04:00:00Z,2015,8,2015-08-19T04:00:00Z,,2015-08-19T14:36:48Z,,0,0,0900006481c2822d
PHMSA-2008-0066-0012,PHMSA,PHMSA-2008-0066,Special Permits; Renewals: Pipeline Safety,Notice,Request for Comments,2014-11-04T05:00:00Z,2014,11,2014-11-04T05:00:00Z,2014-12-05T04:59:59Z,2025-06-17T20:01:43Z,2014-26086,0,0,09000064819142ba
PHMSA-2008-0066-0011,PHMSA,PHMSA-2008-0066,"Draft Environmental Assessment for Columbia Gas Transmission, Mainline100, 200 and 300 pipelines located in Williamson and Davidson Counties, TN.",Other,Environmental assessment,2014-10-16T04:00:00Z,2014,10,2014-10-16T04:00:00Z,,2014-10-16T19:31:12Z,,0,0,09000064818c98a3
PHMSA-2008-0066-0010,PHMSA,PHMSA-2008-0066,Columbia Pipeline Group - Request for Renewal,Other,Special Permit,2014-09-08T04:00:00Z,2014,9,2014-09-08T04:00:00Z,,2014-09-08T16:42:19Z,,0,0,090000648185fb54
PHMSA-2008-0066-0009,PHMSA,PHMSA-2008-0066,U.S. DOT/PHMSA - Notice to NiSource Columbia Gulf of Expiration Date of Special Permit,Other,Letter(s),2014-08-18T04:00:00Z,2014,8,2014-08-18T04:00:00Z,,2014-08-18T19:01:13Z,,0,0,09000064818209b7
PHMSA-2008-0066-0008,PHMSA,PHMSA-2008-0066,NiSource Gas Transmission & Storage - Annual Reports for 2011 through 2014,Other,Report,2014-07-30T04:00:00Z,2014,7,2014-07-30T04:00:00Z,,2025-06-17T20:04:42Z,,0,0,09000064817ef750
PHMSA-2008-0066-0005,PHMSA,PHMSA-2008-0066,See attachments,Other,Other,2010-08-03T04:00:00Z,2010,8,2010-08-03T04:00:00Z,,2013-08-11T03:09:57Z,,0,0,0900006480b27443
PHMSA-2008-0066-0003,PHMSA,PHMSA-2008-0066,Pipeline Safety: Requests for Special Permit,Rule,Federal Register Publication,2008-04-29T04:00:00Z,2008,4,2008-04-29T04:00:00Z,2008-05-30T03:59:59Z,2025-06-17T20:02:19Z,E8-09259,0,0,090000648053a3a5
PHMSA-2008-0066-0002,PHMSA,PHMSA-2008-0066,U.S.DOT/PHMSA - Acknowledgement Letter/Reciept,Other,Acknowledgement Letter/Receipt,2008-03-24T04:00:00Z,2008,3,2008-03-24T04:00:00Z,,2013-07-28T01:31:05Z,,0,0,0900006480405df4
PHMSA-2008-0066-0001,PHMSA,PHMSA-2008-0066,Columbia Gulf Transmission Company - Request a Special Permit,Other,Other,2008-03-18T04:00:00Z,2008,3,2008-03-18T04:00:00Z,,2025-06-17T20:05:20Z,,0,0,09000064803fb0c6