4.3 Color Code

Facility Owner Locator

Practice Statement:

A uniform color code and set of marking symbols is adopted nationwide.

Practice Description:

A national standard is adopted defining color specifications relevant to facility type and marking symbols for identifying facilities. (See Appendix B, “Uniform Color Code and Marking Guidelines.”) 1 The December 1997 NTSB safety report cites the use of the APWA/ Utility Location and Coordination Council (ULCC) color code as the model example.

  • 1. TR-2001-05: Approved by the CGA Board on September 24, 2004