When using the ERG with a UN/NA ID number, what is the first step?

• A. Look up the material in the blue pages
• B. Look up the material in the yellow pages
• C. Look it up in the emergency contact list
• D. Check the red pages

Answer: (B)

The first step when using the Emergency Response Guidebook (ERG) with a UN/NA ID number is to look it up in the yellow pages. The yellow pages of the ERG are specifically organized to provide guidance on hazardous materials based on their identification numbers. This section allows responders to quickly locate the relevant material and access incident-specific information, including the potential hazards, response tactics, and required precautions.

This is particularly important in emergency situations, as it ensures that responders can efficiently find the information they need to manage the incident safely and effectively. The yellow pages serve as a critical tool for initial evaluation and decision-making when addressing hazardous material incidents.