The U.S. Department of Transportation's Pipeline and Hazardous Materials Safety Administration (PHMSA) recently announced a free, mobile web app of its Emergency Response Guidebook 2012 (ERG). The new safety tool will provide the nation's emergency responders with fast, easily accessible information to help them manage hazardous material incidents. The mobile ERG will make it easier for firefighters, police and other emergency first responders to quickly locate the information they need, thanks to an electronic word search function, and will ensure easy reading even during nighttime emergencies. The 2012 version of the ERG includes new evacuation tables for large toxic gas spills and standard response procedures for gas and liquid pipeline incidents. Links to download this software are available from the Apple iTunes website at ERG 2012 for iPhone and from the Google Play website at ERG 2012 for Android. In addition, a version of the ERG is available in NLM's Wireless Information System for Emergency Responders (WISER) application. An instructional video for learning how to use the ERG2012 is also available on PHMSA's website.