J. J. Keller® ERG App

The J. J. Keller® ERG App provides fast, reliable access to critical hazardous materials response guidance. Built on the U.S. Department of Transportation (DOT) PHMSA Emergency Response Guidebook (ERG 2024), the ERG app supports initial response actions during transportation incidents involving hazardous materials and dangerous goods. Whether at the scene of a roadway, rail, or shipping incident, users can quickly identify hazards, assess risks, and reference recommended safety actions-even without an internet connection. For more than 70 years, J. J. Keller & Associates, Inc. has been a trusted leader in safety and regulatory compliance. This app extends that expertise into the field, delivering trusted ERG content in a mobile‑ready, easy‑to‑use format designed for speed and clarity. Key Features: • Complete ERG Content  Browse the full Emergency Response Guidebook in a mobile‑optimized experience. • Fast, Intuitive Navigation  Numerically indexed and color‑coded sections help users find information quickly under pressure. • Search by UN Number or Material Name  Instantly locate the appropriate ERG response guide for hazardous materials or dangerous goods. • Visual Identification Support  Identify materials using hazmat placards, road trailer visuals, and rail car references when details are limited. • Offline Access  Fully functional without internet connectivity-ideal for emergency scenes and remote locations. • Light and Dark Mode  Optimized for readability in all environments.