Final answer:
If you have the UN/NA identification number, you would go to the green pages of the ERG.
Step-by-step explanation:
If you have the UN/NA identification number, you would go to the green pages of the ERG. The Emergency Response Guidebook (ERG) is used by first responders and hazmat teams to quickly identify hazardous materials. It is color-coded, and the green pages contain information specific to the UN/NA identification number, such as the hazards associated with the material, proper response actions, and recommended protective measures.