About the Pipeline Information Management Mapping Application (PIMMA)
The Pipeline and Hazardous Materials Safety Administration (PHMSA) has developed the Pipeline
Information Management Mapping Application (PIMMA) for use by pipeline operators and federal,
tribal, state, and local government officials. You must have an NPMS account to access PIMMA. PIMMA
allows you to view, query and print NPMS pipeline maps, including hazardous liquid and gas
transmission pipelines, liquefied natural gas (LNG) plants and breakout tanks. PIMMA is for
reference purposes only; data cannot be downloaded from PIMMA. If you would like to request NPMS GIS
data layers for use in your own mapping system, please submit a Data Request.
An iPhone app for PIMMA is also available. To download it, from your iPhone search for "pipeline
information" on the App Store. All rules associated with the PIMMA desktop version and your NPMS
account also apply to the PIMMA iPhone app.
Sharing NPMS accounts between individuals is expressly prohibited by multifactor authentication
(MFA) protocols and in the NPMS Access Policy. A government or pipeline operator contractor (e.g.,
consultant, subcontractor) cannot request an NPMS account. However, a current NPMS account holder
may sponsor an NPMS contractor account for their contractor's use. Terms and sponsor forms are
available here. Otherwise, if another person expresses
interest in using PIMMA, please have them
apply for an NPMS Account. PHMSA monitors user activity and reserves the right to remove individual
The general public and private companies may not access PIMMA;
please utilize the NPMS Public Map
Apply for NPMS Account here.
Log in to PIMMA using your NPMS account is here.
Federal Government (FEDERAL AND MILITARY OFFICIALS ONLY):
Federal government officials will receive access to view NPMS data in PIMMA for the entire nation.
Tribal government officials will receive access to view NPMS data in PIMMA for the counties that
contain their tribal jurisdictional area as determined by the US Census' American Indian/Alaska
Native/Native Hawaiian Areas designation.
State and Local Government:
State and Local Government officials will receive access to view NPMS data in PIMMA for the State or
county(ies) that surround their employer's jurisdiction.
Pipeline Operator (INCLUDES PIPELINE, LNG PLANT, AND BREAKOUT TANK OPERATORS):
Pipeline operators will receive access to view NPMS data in PIMMA for their respective pipeline
facilities (pipelines, LNG plants and/or breakout tanks), as defined by the Operator ID. Pipeline
operators may not access pipeline facilities they do not operate.
Applicable and Sponsored Contract Staff:
When applicable and sponsored by an active NPMS account holder, the sponsor's contract staff will
receive access to view NPMS data in PIMMA for the same area or Operator IDs as their sponsor's NPMS