If the emergency-response telephone number is not available in the shipping documents, what should the first responder do?

If the shipping documents do not provide an emergency-response number, the first responder should use the appropriate emergency-response telephone number listed in the guidebook. That number connects responders with guidance for the hazardous material involved. The correct choice is C, “call the appropriate emergency-response telephone number listed in the guidebook.”

AI-written and checked against the verified answer.