PHMSA Proposes First Major Pipeline Repair Rule Update in Two Decades
PHMSA has proposed its first major update to federal pipeline repair standards in two decades, introducing risk-based engineering criteria that could save operators $390 million annually while improving pipeline safety.
(P&GJ) — The U.S. Department of Transportation's Pipeline and Hazardous Materials Safety Administration (PHMSA) has proposed sweeping updates to federal pipeline repair standards, marking the first major overhaul of gas transmission and hazardous liquid pipeline repair criteria in more than 20 years. The agency estimates the proposed rule would save the industry about $390 million annually while improving pipeline safety through modern engineering practices.
The Notice of Proposed Rulemaking (NPRM), published July 8 in the Federal Register, would replace prescriptive repair timelines with a more risk-based framework that relies on modern inspection technologies, engineering analysis and integrity assessments to determine when pipeline anomalies require remediation. The proposal also extends engineering-based repair criteria already adopted for gas transmission pipelines to hazardous liquid pipelines.
PHMSA said advances in inline inspection tools, predictive modeling and data analytics now allow operators to better identify and prioritize defects based on actual risk, reducing unnecessary excavations while focusing resources on the most critical threats.
"Thanks to cutting-edge inspection technology and data, pipeline operators understand their systems better than ever before," PHMSA Administrator Paul Roberti said. "PHMSA is modernizing our safety regulations to match this new landscape."
Under the proposal, pipeline anomalies would be grouped into three response categories — immediate, near-term and other conditions — replacing multiple existing compliance schedules with a streamlined framework. The rule would also expand the use of engineering-based assessments, including predicted failure pressure calculations and modern crack and corrosion evaluation methods, to determine repair priorities.
PHMSA estimates gas transmission operators would realize annual savings of between $214.6 million and $241.7 million, while hazardous liquid and carbon dioxide pipeline operators would save approximately $148.5 million annually. Beyond cost reductions, the agency said the proposal would improve worker safety, reduce environmental impacts and minimize service disruptions by avoiding unnecessary repairs while accelerating responses to higher-risk defects.
"Prioritizing repairs to target actual threats — rather than sticking to prescriptive, one-size-fits-all timelines — will improve safety and unleash American energy," Roberti said.
The proposed rule would also allow operators to leverage updated engineering models, advanced inline inspection technologies and improved material property analyses when evaluating pipeline integrity. PHMSA said these tools have advanced significantly since the agency established today's repair requirements in the early 2000s.
Comments on the proposed rule are due by Sept. 8, 2026.