Under newer regulations, what color identifies gas pipelines?

• A. Orange/Beige/Salmon
• B. Yellow
• C. Blue
• D. Green

Answer: (B)

Gas pipelines are identified with yellow under newer regulations. This color choice is part of a standardized system so workers can instantly recognize underground utilities and avoid dangerous interruptions. Yellow is used specifically for gas to differentiate it from other services: blue marks indicate potable water, green marks indicate sewer or drainage, and orange marks indicate electrical or communications lines. The consistent use of yellow for gas helps prevent accidents during excavation and ensures proper safety procedures when working near gas lines.