To contact the shipper for hazard and response information, a firefighter can obtain information number from

• A. Computer Aided Management of Emergency Operations.
• B. The Chemical Abstracts Service registry number.
• C. The Emergency Response Guide.
• D. Shipping papers.

Answer: (D)

The information number for contacting the shipper is found on the shipping papers that accompany a hazardous materials shipment. These papers include the material’s details and, crucially, the shipper’s 24-hour emergency contact number, which responders use to get hazard and response information directly from someone who knows the product. The Emergency Response Guide is used for initial hazard identification and response steps, but it doesn’t reliably provide the shipper’s contact number. The CAS registry number identifies the chemical itself, not a contact method. CAMEO is a planning and data tool for responders, but the official emergency contact number comes from the shipping papers.