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.
Recent Rulemakings
Safety of Gas Transmission Pipelines: MAOP Reconfirmation, Expansion of Assessment Requirements, and Other Related Amendments, RIN 1, October 1, 2019
| Requirement of Valve Installation and Minimum Rupture Detection Standards, April 8, 2022 |
Pipeline Safety: Safety of Gas Gathering Pipelines: Extension of Reporting Requirements, Regulation of Large, High-Pressure Lines, and Other Related Amendments, RIN 3 November 15, 2021 |
Incorporated-by-Reference Updates to 49 CFR parts 192 & 195 |
| Safety of Gas Transmission Pipelines: Repair Criteria, Integrity Management Improvements, Cathodic Protection, Management of Change, and Other Related Amendments, RIN 2, August 24, 2022 |
Safety of Gas Transmission Pipelines: MAOP Reconfirmation, Expansion of Assessment Requirements, and Other Related Amendments, RIN 1, October 1, 2019 |
2019 Safety of Hazardous Liquid Pipelines |
Last updated: Tuesday, December 16, 2025