TC Keystone RCFA

Onshore Gas Gathering FAQs for Type C and R Pipelines

The Onshore Gas Gathering FAQs for Type C and Type R Pipelines include general guidance on gas gathering and specific guidance on requirements applicable to Type C and Type R gathering lines.

PHMSA Tier 2 Site Specific Environmental Assessment

PHMSA Tier 2 Site Specific Environmental Assessment PDF

PHMSA Webinar: Best Practices for Submitting an NGDISM Grant Application (May 1, 2023)

PHMSA Webinar: Best Practices for Submitting an NGDISM Grant Application (May 1, 2023)

Pipeline Rulemaking Implementation

The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety, provides technical information on selected pipeline safety topics. This information is oriented primarily toward operators to provide information useful for complying with the pipeline safety regulations; however, all stakeholders may find this material informative. This site is updated as needed to reflect new developments or to include information pertinent to these topics.

PHMSA Denial of Application for Renewal of DOT-SP 20534

This is in response to your November 29, 2021 Application for Renewal of DOT-SP 20534, which was issued by the Pipeline and Hazardous Materials Safety Administration (PHMSA) on December 5, 2019 and expired by its terms on November 30, 2021.1 In accordance with 49 CFR 107.113(e) and (g), PHMSA...

CPF 3-2022-074-CAO - Item 2 - Operating Pressure Restriction

TC Energy, on behalf of its subsidiary, TC Oil Pipeline Operations, Inc., has received the Corrective Action Order CPF 3-2022-0074-CAO dated December 8th, 2022.

Restart Plan for STLCB MP14

The intent of this document is to address TC Energy's current and proposed response to the Steele City MP14 incident as it pertains to returning the line to service.

NGDISM FY 2022 Guidance for Recipients

NGDISM FY 2022 Guidance for Recipients (April 19, 2023)

DOT SIB Testing Report

DOT SIB Testing Report PDF