iPhone Screenshots


The NPMS Public Viewer iPhone app, developed by US DOT PHMSA, allows the user to view hazardous liquid and gas transmission pipeline maps. The user can see who operates a pipeline, what it transports, and who to contact for further information. A user may choose one county’s pipelines or the pipelines closest to the user’s current location. For more information about the NPMS, go to www.npms.phmsa.dot.gov.

What’s New

Version 1.2

This app has been updated by Apple to use the latest Apple signing certificate.

Minor system setting updates

Ratings and Reviews

1.6 out of 5
7 Ratings

7 Ratings

lsmonop ,

If this is so important, why does it not work?

I can't rate with less than 1 star.

I select a state and county, it loads, map screen comes up and immediately there is an error message on top.

Your session has expired.
Please select a state and county
to start a new session.

App is useless as is.

Ezascanbe ,


Work as intended without issue.

foolformusik ,

Good idea if it worked

Cannot choose a state...app crashes.

App Privacy

The developer, Pipeline and Hazardous Materials Safety Administration, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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