What do the yellow pages in the Emergency Response Guidebook (ERG) provide?

The yellow pages in the Emergency Response Guidebook (ERG) are specifically designed to provide identification numbers for various hazardous materials. These pages allow first responders to quickly locate the relevant information associated with a specific hazardous material's UN (United Nations) identification number. This system enhances efficiency in emergency situations, enabling responders to access critical details about the material, including its potential hazards and recommended emergency response measures.

The other options point to different sections of the ERG: material name pages are found in a separate section that organizes hazardous materials alphabetically; guide pages provide specific response guidelines for individual materials; and table pages, such as the table of placards, assist in identifying materials based on their visual indicators or classification, but they are not represented by the yellow pages.