ERG 2020 12+

National Library of Medicine

Designed for iPad

    • 4.1 • 50 Ratings
    • Free



PHMSA (U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration)'s 2020 Emergency Response Guidebook provides first responders with a go-to resource to help deal with hazmat accidents during the critical first 30 minutes.

The ERG contains an indexed list of dangerous goods and the associated ID number, the general hazards they pose and recommended safety precautions. For example, if emergency responders arrive at the scene of an overturned tractor trailer displaying a DOT hazmat placard, they would use the guide to identify the material associated with the placard and get guidance on how to respond accordingly.

The 2020 version of the ERG includes general revisions, reorganized general information pages, protective distance mapping updates, and the new ability to share data links through URLs. Updated every four years, the ERG is available free to public safety agencies in all states and territories through designated state coordinators’ offices. PHMSA has partnered with the National Library of Medicine to provide this free application as well as a version of the ERG in its Wireless Information System for Emergency Responders (WISER) application.

What’s New

Version 3.1.6

ERG 2020 app has been re-released as ERG for IOS by Pipeline and Hazardous Materials Safety Administration. Please download this new version to get the latest features and updates. ERG 2020 by National Library of Medicine will no longer be supported.

Ratings and Reviews

4.1 out of 5
50 Ratings

50 Ratings

Monty15 ,

Great tool!

Was easy to use and quicker than thumbing through the book. Would like to see the ability to drop the waypoint on the map when plotting isolation distances, currently you can only input addresses. Also, the text bubble used with the waypoint does not display entire text, even when screen is rotated on iPhone 7.

x hi sndueh ,

Good but needs help

Data is easy to find. However, plume map pin can’t be moved nor is entering lat and long manually accurate. More than a mile off. This is a critical component when determining a valuation and downwind concerns. FIX IT

Timothy Chavez ,


Great app easy to use but a glossary feature would be a game changer

App Privacy

The developer, National Library of Medicine, 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

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