What information must line markers include at minimum?

• A. The Operator's Name and the Telephone Number Where the Operator Can Be Reached at All Times
• B. The Color Code
• C. The Diameter of the Pipe
• D. The Date of Installation

Answer: (A)

The information you must have on line markers at minimum is the operator’s name and a phone number where the operator can be reached at all times. This ensures that anyone working near the line can quickly identify who owns or operates the facility and contact the right person for locating, confirmation, or safety instructions, no matter the time of day. The color code helps identify the type of utility, but it doesn’t replace the need to know who to call. Diameter and installation date aren’t required for the basic identification and safe coordination of work near the line.