Canada Energy Regulator - Trans Mountain Pipeline ULC - Audit Close-out Letter

Canada Energy Regulator - Trans Mountain Pipeline ULC - Audit Close-out Letter [PDF 164 KB]

File 5070192
CV2425-305
24 March 2026

Michael Davies
Trans Mountain Pipeline ULC
Suite 2700, 300 Fifth Avenue SW
Calgary, AB T2P 5J2
Email:

Canada Energy Regulator Lifecycle Transition from Construction to Operations Audit of Trans Mountain Pipeline ULC
Audit Close-out Letter

In accordance with section 103 of the Canadian Energy Regulator Act, the Canada Energy Regulator (CER) conducted a compliance audit of Trans Mountain Pipeline ULC (the auditee). The focus of the audit was on Transition from Construction to Operations – Environmental Protection Program.

The objective of this audit was to assess the auditee’s transition in the lifecycle of Line&nbs;2 from construction to operations while adhering to the management system requirements outlined in the Canadian Energy Regulator Onshore Pipeline Regulations SOR/99-294 (OPR). The audit focused on section 48 of the OPR, the Environmental Protection Program, as its test area for this audit. The audit focused on the application of management of change, leadership, resourcing, and the auditee's contractor oversight, among other key areas.

The CER issued its Final Audit Report to the auditee on 27 May 2025, and the auditee filed a Corrective and Preventive Action (CAPA) Plan with the CER on 27 June 2025. The intent of the CAPA Plan was to address the non-compliances identified in the Final Audit Report.

The CER has monitored the implementation of this CAPA Plan via implementation assessment meetings and document reviews. The auditee has demonstrated that it has completed the implementation of this CAPA Plan.

The CER now considers this audit to be closed. Note the auditee is accountable for maintaining compliance throughout the life cycle of its regulated facilities. The CER will verify ongoing compliance through future compliance verification activities.

If you require any further information or clarification, please contact , lead auditor, at , , or at 1-800-899-1265.

Yours sincerely,

Signed by

Lead Auditor
Canada Energy Regulator

cc:

, Director, Audit Enforcement and Investigation, Canada Energy Regulator
email:
, Technical Leader, Canada Energy Regulator
email:
, Manager, Regulatory Assurance, Trans Mountain Pipeline ULC
email:

General Compliance Email, Trans Mountain Pipeline ULC
email:

Date modified:

2026-05-14