Pipeline markers commonly include which two pieces of information?

• A. The transported commodity and the name and telephone number of the carrier
• B. The pipeline owner's name and route
• C. The emergency contact number and installation date
• D. The maximum load and service type

Answer: (C)

Pipeline markers are meant to guide responders by giving two critical pieces of information: what product is in the line and how to reach someone who can provide details or coordinate emergency response. The most common pairing is the transported commodity and a 24-hour emergency contact number, which lets responders immediately identify the hazard and contact the operator. Data like installation date, route, or maximum load aren’t typically shown on markers, so the option that lists the product and the emergency contact best reflects standard marker information.