What does the white color coding indicate in USA utility markings?

The white color coding in USA utility markings specifically indicates the area of proposed work. This color scheme is part of a standardized system used to identify different types of underground utilities and the work being planned in proximity to those utilities. When a white marking is observed, it signals workers and contractors that the area has been designated for future construction or excavation, prompting further planning and precautions to avoid damaging existing utilities.

Understanding these color codes is essential for safety and effective communication among utility workers, contractors, and engineers to ensure that planned work doesn't interfere with existing infrastructure. Other color markings correspond to various utilities like gas or electricity, but white serves as an important indicator for areas where construction may occur, alerting all parties to pay attention to the marked zones.