The U.S. Department of Transportation’s Office of Pipeline Safety has developed the National Pipeline Mapping System (NPMS) to provide information about gas transmission and liquid transmission operators and their pipelines. The NPMS web site is searchable by zip code or by county and state, and can display a printable county map. The site also provides the public a resource with which to obtain a list of operators and their contact information by county or state. Operators of production facilities, gas or liquid gathering piping, and distribution piping are not represented by NPMS, nor are they required to be.
The Pipeline and Hazardous Materials Safety Administration has developed the Pipeline Information Management Mapping Application (PIMMA) for use by pipeline operators and federal, state, and local government officials only. The application contains sensitive pipeline critical infrastructure information that can be viewed via internet browser (Mozilla Firefox users should use Internet Explorer). PIMMA data is for reference purposes only; data cannot be downloaded. If you would like to request GIS data layers, please click here.
About the Pipeline Information Management Mapping Application
The Pipeline and Hazardous Materials Safety Administration (PHMSA) has developed the Pipeline Information Management Mapping Application (PIMMA) for use by pipeline operators and federal, state, and local government officials only. The application contains hazardous liquid and gas transmission pipelines, Liquefied Natural Gas (LNG) plants and breakout tank data. PIMMA data is for reference purposes only; data cannot be downloaded from PIMMA. If you would like to request GIS data layers for use in your own mapping system, please submit a Data Request.
PIMMA is intended to be used solely by the person who is given access by PHMSA. Your user name and password should not be shared with other persons either within or outside of your organization. If another person expresses interest in using PIMMA, please have them submit an application. PHMSA monitors user activity and reserves the right to remove individual access rights.
Access to PIMMA is limited to federal, state, and local government officials as well as pipeline operators. PIMMA access cannot be given to any person who is not a direct official/employee of a government agency or a pipeline operator. All applications will be processed by PHMSA personnel, who will respond as soon as possible. The general public and private companies may not access PIMMA; please utilize the NPMS Public Map Viewer instead.