PHMSA Pipeline Technical Resources

This site is administered by the Pipeline and Hazardous Materials Safety Administration (PHMSA). It provides technical and regulatory information concerning issues and recent rulemaking for selected pipeline safety topics. This site is oriented primarily toward operators to provide information useful for complying with PHMSA regulations. However, all stakeholders might find this material informative. The below links provide information for the latest rulemaking, advisory bulletin, and instructions for submitting required notifications. This site is updated as needed to reflect new developments and information pertinent to these issues.

If you are looking for general stakeholder information about pipelines or pipeline enforcement records, go to the following link: Stakeholder Communications.

Alternative MAOP Cased Crossings & Guided Wave Ultrasonics (GWUT) Class Location Special Permits Control Room Management (CRM) Gas Distribution Integrity Management Program (DIMP) Gas Transmission Integrity Management (GT IM) Hazardous Liquid Integrity Management (HL IM) Risk Modeling Work Group (RMWG) High Volume Excess Flow Valves (EFV) Low Strength Pipe Operator Qualification (OQ) Pipeline Construction Research & Development (R&D) LNG Facility Siting Public Meetings Underground Natural Gas Storage Stakeholder Communications