ERG for iOS 12+

Official USDOT ERG

Pipeline and Hazardous Materials Safety Administration

Designed for iPad

    • Free



PHMSA’s Emergency Response Guidebook (ERG) is the go-to resource for first responders during the initial phase of a dangerous goods or hazardous materials transportation incident.

The ERG app is a valuable companion, based on the latest edition of the ERG, to help responders quickly access critical information at their fingertips. The app features an indexed list of dangerous goods, including their associated ID number, general hazards, and recommended safety precautions.

In practical scenarios, such as responding to an overturned tractor trailer displaying a DOT hazmat placard, emergency responders can use the app to quickly identify the material associated with the placard and get guidance on how to respond effectively.

Full versions available in English, French, and Spanish.

What’s New

Version 4.0

Download the official PHMSA ERG app or update your app to get the latest features and updates from ERG2024, including:

- Updated marks, labels, placards, and road trailer and rail car identification charts
- New considerations for Electric Vehicle and Damaged, Defective or Recalled lithium battery fires
- Updated Search by UN/Search by Name
- Revisions to Orange Guides
- See the "What's New" tab for a full list of updates.

Ratings and Reviews

4.8 out of 5
35 Ratings

35 Ratings

Great 10000 ,


This is a great app. So much better than the book. I suggest when in the orange section have the “protective distance” icon at the bottom green instead of grayed out and/or have the green highlighted area in the evacuation section a link to the protective distances.

Great app

Whynotthisname3 ,


5 stars cause it’s super convent and handy!

Only suggestion is making the wind direction option easier to maneuver.. could be a bit confusing to use :)

Darn top ,

Under Rated Free App

This app functions better than most paid versions that are available.

App Privacy

The developer, Pipeline and Hazardous Materials Safety Administration, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

NPMS Public Viewer
DOT Chart 17
Pipeline Info Mgmt Mapping
RIN Locator
Hazmat Registration Search

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