Information for Emergency Responders

NPMS data consists of hazardous liquid and gas transmission pipelines, Liquefied Natural Gas (LNG) plants and breakout tanks. Gathering and distribution pipelines are not included.
NPMS data can be used as a pre-incident planning tool to identify pipeline operators in your jurisdiction.
The NPMS provides contact information for pipeline operators. PHMSA recommends that emergency responders actively reach out to pipeline operators to discuss emergency plans. The NPMS does not contain info that is critical to dealing with an emergency in real-time. The NPMS data is updated annually but may not reflect current ground conditions.
PIMMA is a web map viewer designed to assist government officials in viewing and querying the NPMS pipeline data. A NPMS account and internet access is required to use PIMMA. There is no offline option.
The Find Who’s Operating in Your Area tool displays contact information for pipeline operators who have pipelines within the selected state, county or ZIP code.
If you would like to learn about the data available to you as a government official, please access our Resources for Government Officials guide. It contains information on how to apply for access to our web mapping application, PIMMA, and how to apply for raw GIS data for use in your own mapping system.