4.22 Marking Newly Installed Facilities

Facility Owner Excavator Locator

Practice Statement:42

Facility operators ensure that new facilities in areas with continuing excavation activity are marked upon installation to indicate their presence.

Practice Description:

In areas of continuing excavation, newly installed facilities can be damaged and safety can be compromised if the facilities are not marked. Marking facilities upon installation gives notice to other excavators of the newly installed facilities that may not otherwise be marked in response to a notice of intent to excavate.


  • CenterPoint Energy/Minnesota, Michels Construction, WE Energies/Wisconsin