Pipeline Materials

PHMSA currently collects reports from pipeline operators by material categories. These categories include cast/wrought iron, steel, and plastic. Cast or wrought iron pipelines were used from the early days of energy transportation through the 1940s. These pipelines are among the oldest energy...

LNG Operator Resources

PHMSA held a webinar to explain reporting requirements for LNG operators. Here is a link to the webinar.

Operator Registry Notification is used by operators to obtain new Operator Identification...

LNG Webinar Questions

LNG Community Awareness

Federal pipeline safety regulations require that LNG facility operators communicate, coordinate, and cooperate with local public officials regarding preparation for emergency evacuation plans, providing mutual assistance in the event of emergencies, and keeping them advised of LNG plant fire-...

LNG Data and Maps

To download LNG incident data, please visit the general accident and incident data page.

Title 49 of the Code of Federal Regulations (49 CFR Parts 191, 195) requires pipeline operators to submit incident reports within 30 days of a pipeline incident or...

LNG Regulatory Documents

Depending on location and use, an LNG facility may be regulated by several federal agencies, primarily the Federal Energy Regulatory Commission (FERC), the U.S. Coast Guard (USCG), and PHMSA, and by state utility regulatory agencies.

U.S. LNG import...

LNG Exclusion Zones

Exclusion zones are established to protect the public from the potential consequences of an unintended release of LNG. Operators are required to legally control all activities in the area surrounding an LNG facility which...

LNG Safety

LNG takes up 1/600th of the volume of the gaseous state of natural gas, but retains all of the energy potential.  Thus, the energy potential of a specific volume of LNG is significantly greater than the same volume of natural gas in its gaseous state.  The safety of LNG facilities...

Examples of 49 CFR Part 193 Jurisdiction

Jurisdiction of LNG Plants

Several federal agencies play a role in the oversight of LNG facilities. The schematic below provides a high level view of the federal oversight of the LNG value chain.

The Natural Gas Pipeline Safety Act of 1968, as...