
5822-03263 — Trans Mountain Corporation
The complainant alleged that Trans Mountain Corporation (TMC) improperly withheld records related to the initial application and approval of the Trans Mountain Pipeline in the early 1950s. TMC failed to identify specific withheld information or demonstrate how it met exemption criteria under the Access to Information Act. TMC also failed to justify refusing to provide a copy of the records. The Information Commissioner found the complaint well-founded and ordered TMC to disclose the records.
- TMC's failure to identify specific withheld information.
- TMC's failure to establish that exemptions applied to the withheld information.
- TMC's failure to justify refusing to provide a copy of the records.
- The age of the records and lack of demonstrable safety threat.
Complaint well founded — disclosure ordered
The institution failed to identify specific information withheld or to establish that any of the withheld information met the criteria for exemption under the Access to Information Act. Furthermore, the institution did not demonstrate that providing a copy of the records would be unreasonable.
AI-generated summary for reference only. Always verify against the official decision ↗
The Information Commissioner ordered Trans Mountain Corporation to disclose all Information at Issue to the complainant by September 1, 2025.
- s.18 ATIA
- s.20 ATIA
- s.16 ATIA
- s.19 ATIA
- s.17 ATIA
- s.12 ATIA
- s.30 ATIA
This is an informational summary of a decision and not legal advice.

