PHMSA (U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration)'s 2016 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 2016 version of the ERG includes general revisions, reorganized general information pages and the addition of protective distance mapping. 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 2.1

Added improvements to the protective distance address search. This feature is now more responsive and includes better results.

Updated layouts for the latest iOS devices.

Ratings and Reviews

4.3 out of 5
26 Ratings

26 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.

SabreClaw2000 ,

Incident Response

Excellent app. Had to look up a UN number to determine safe distance for a spill today. Very handy in keeping my folks safe quickly.

Kham11 ,

It has everything you need

This is an awesome app


National Library of Medicine
34.5 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Infrequent/Mild Medical/Treatment Information
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References


  • Family Sharing

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

More By This Developer

You May Also Like