What is the emergency response telephone number for shipments of class 1 explosives-ammunition?

In the United States, the emergency response telephone number for shipments of Class 1 explosives, such as ammunition, is typically 911 for immediate emergencies. Additionally, the National Response Center (NRC) can be contacted at 1-800-424-8802 for reporting hazardous materials incidents. Always refer to the specific shipping documents or regulations for the appropriate emergency contacts based on the situation and location.