What section of the ERG would you use to identify the appropriate ERG guide?

To identify the appropriate Emergency Response Guide (ERG) guide, you would refer to the "Table of Contents" or "Guide Number" section at the beginning of the ERG. This section typically lists hazardous materials by their UN number or name, allowing you to locate the relevant guide for specific incidents. Additionally, the "Index" section can be used for a more detailed search if the material is not easily found in the table.