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withdrawn,object_id PHMSA-2019-0202-0031,PHMSA,PHMSA-2019-0202,"Permits; Applications, Issuances, etc.: Columbia Gas Transmission System",Notice,Request for Comments,2025-10-10T04:00:00Z,2025,10,2025-10-10T04:00:00Z,2025-10-28T03:59:59Z,2025-10-10T16:36:59Z,2025-19525,0,0,09000064b8fff015 PHMSA-2019-0202-0030,PHMSA,PHMSA-2019-0202,Columbia Gas Transmission Attachment B,Supporting & Related Material,Supplement,2025-09-17T04:00:00Z,2025,9,,,2025-09-17T22:24:50Z,,0,0,09000064b8fa8949 PHMSA-2019-0202-0029,PHMSA,PHMSA-2019-0202,Columbia Gas Transmission Attachment A,Supporting & Related Material,Supplement,2025-09-11T04:00:00Z,2025,9,,,2025-09-11T23:25:47Z,,0,0,09000064b8f70224 PHMSA-2019-0202-0025,PHMSA,PHMSA-2019-0202,"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,2025-11787,0,0,09000064b8e32322 PHMSA-2019-0202-0024,PHMSA,PHMSA-2019-0202,Special Permit Extension Request,Supporting & Related Material,Supplement,2025-06-25T04:00:00Z,2025,6,,,2025-06-25T19:37:52Z,,0,0,09000064b8e2ee90 PHMSA-2019-0202-0023,PHMSA,PHMSA-2019-0202,TC Energy - Annual Report,Other,Report,2025-05-07T04:00:00Z,2025,5,2025-05-07T04:00:00Z,,2025-05-21T20:00:40Z,,0,0,09000064b8d08560 PHMSA-2019-0202-0022,PHMSA,PHMSA-2019-0202,TC Energy - Condition 15 –2nd Annual Report for Special Permit,Other,Report,2024-03-27T04:00:00Z,2024,3,2024-03-27T04:00:00Z,,2024-03-27T12:06:24Z,,0,0,090000648649a6f2 PHMSA-2019-0202-0019,PHMSA,PHMSA-2019-0202,Columbia Gas (TCO) - Class 1 to 3 - MD VA - SP Conditions - 06302023,Other,Special Permit,2023-07-19T04:00:00Z,2023,7,2023-07-19T04:00:00Z,,2023-07-19T13:57:25Z,,0,0,0900006485c550c8 PHMSA-2019-0202-0020,PHMSA,PHMSA-2019-0202,Columbia Gas Transmission FEA FONSI 2023,Other,Additional Information,2023-07-19T04:00:00Z,2023,7,2023-07-19T04:00:00Z,,2023-07-19T14:00:04Z,,0,0,0900006485c550ca PHMSA-2019-0202-0021,PHMSA,PHMSA-2019-0202,Columbia Gas Transmission SPAF 2023,Other,Additional Information,2023-07-19T04:00:00Z,2023,7,2023-07-19T04:00:00Z,,2023-07-19T14:01:21Z,,0,0,0900006485c550cc PHMSA-2019-0202-0018,PHMSA,PHMSA-2019-0202,Columbia Gas (TCO) - Class 1 to 3 - MD VA - LOD - Amended - 06302023,Other,Amendment,2023-07-14T04:00:00Z,2023,7,2023-07-14T04:00:00Z,,2023-07-14T19:35:09Z,,0,0,0900006485c550c6 PHMSA-2019-0202-0016,PHMSA,PHMSA-2019-0202,TC Energy - Certification Final,Other,Certifications,2023-03-27T04:00:00Z,2023,3,2023-03-27T04:00:00Z,,2023-03-27T13:11:34Z,,0,0,0900006485843329 PHMSA-2019-0202-0017,PHMSA,PHMSA-2019-0202,TC Energy - Condition 15 –1st Annual Report for Special Permit,Other,Report,2023-03-27T04:00:00Z,2023,3,2023-03-27T04:00:00Z,,2023-03-27T13:14:28Z,,0,0,0900006485843e3b PHMSA-2019-0202-0015,PHMSA,PHMSA-2019-0202,TCO - Class 1 to 3 SP Amended - FEA and FONSI - 08-09-2022,Other,Additional Information,2022-09-08T04:00:00Z,2022,9,2022-09-08T04:00:00Z,,2022-09-08T12:25:42Z,,0,0,09000064852c66f7 PHMSA-2019-0202-0012,PHMSA,PHMSA-2019-0202,TCO - Class 1 to 3 SP Amended - Application Letter - Amended Permit,Other,Application,2022-09-08T04:00:00Z,2022,9,2022-09-08T04:00:00Z,,2022-09-08T12:25:08Z,,0,0,09000064852cab09 PHMSA-2019-0202-0014,PHMSA,PHMSA-2019-0202,TCO - Class 1 to 3 SP Amended - Attachment B - Special Permit Criteria,Other,Additional Information,2022-09-08T04:00:00Z,2022,9,2022-09-08T04:00:00Z,,2022-09-08T12:25:31Z,,0,0,09000064852ca908 PHMSA-2019-0202-0013,PHMSA,PHMSA-2019-0202,TCO - Class 1 to 3 SP Amended - Attachment A - Pipeline Segment Integrity Information,Other,Additional Information,2022-09-08T04:00:00Z,2022,9,2022-09-08T04:00:00Z,,2022-09-08T12:25:19Z,,0,0,09000064852cab07 PHMSA-2019-0202-0011,PHMSA,PHMSA-2019-0202,Columbia Gas Trans (TCO) - Class 1 to 3 - MD - SPAF - 03-31-2022,Other,Report,2022-08-26T04:00:00Z,2022,8,2022-08-26T04:00:00Z,,2022-09-08T11:46:16Z,,0,0,0900006485279cc3 PHMSA-2019-0202-0010,PHMSA,PHMSA-2019-0202,"Pipeline Safety: Request for Special Permit: Columbia Gas Transmission, LLC",Notice,Request for Comments,2022-08-17T04:00:00Z,2022,8,2022-08-17T04:00:00Z,2022-09-17T03:59:59Z,2025-06-16T20:17:41Z,2022-17688,0,0,09000064852454df PHMSA-2019-0202-0009,PHMSA,PHMSA-2019-0202,TCO - Proposed DEA FONSI - SP Segments 5 and 6 - 08-09-2022,Other,Decision,2022-08-16T04:00:00Z,2022,8,2022-08-16T04:00:00Z,,2022-08-24T21:01:09Z,,0,0,090000648522caa5 PHMSA-2019-0202-0008,PHMSA,PHMSA-2019-0202,TCO - Class 1 to 3 SP Amended - Conditions - 08-09-2022,Other,Request,2022-08-10T04:00:00Z,2022,8,2022-08-10T04:00:00Z,,2022-08-24T20:59:53Z,,0,0,090000648522ca64 PHMSA-2019-0202-0007,PHMSA,PHMSA-2019-0202,Granted Special Permit Letter of Decision Special Permit Analysis and Finding FEA/FONSI,Other,Special Permit,2022-04-11T04:00:00Z,2022,4,2022-04-11T04:00:00Z,,2022-04-11T16:57:07Z,,0,0,090000648500b72b PHMSA-2019-0202-0004,PHMSA,PHMSA-2019-0202,Columbia Gas Transmission - TCO- DEA and Proposed FONSI for public comment - (Draft),Supporting & Related Material,Environmental Assessment/FONSI,2020-09-09T04:00:00Z,2020,9,,,2020-09-09T14:58:13Z,,0,0,0900006484822672 PHMSA-2019-0202-0005,PHMSA,PHMSA-2019-0202,Pipeline Contractors Misconduct-Public,Supporting & Related Material,Supplement,2020-09-09T04:00:00Z,2020,9,,,2020-09-16T14:05:01Z,,0,0,090000648484c46d PHMSA-2019-0202-0003,PHMSA,PHMSA-2019-0202,"Pipeline Safety: Special Permit; Columbia Gas Transmission, LLC",Notice,General Notice,2020-09-08T04:00:00Z,2020,9,2020-09-08T04:00:00Z,2020-10-09T03:59:59Z,2025-06-16T20:18:08Z,2020-19794,0,0,0900006484849922 PHMSA-2019-0202-0001,PHMSA,PHMSA-2019-0202,TC Energy Special Permit Application TCO System Cover,Other,Application,2019-10-25T04:00:00Z,2019,10,2019-10-25T04:00:00Z,,2025-06-16T20:18:28Z,,0,0,09000064840edd9f