Call Before You Dig

The Ohio Utilities Protection Service (OUPS) provides a state-of-the-art call center that operates 24 hours a day, seven days a week, to answer calls from anyone who intends to dig in the State of Ohio. Call 800-362-2764 before you dig.

Color Codes


The American Public Works Association encourages public agencies, utilities, contractors, other associations, manufacturers, and all others involved in excavation to adopt the ULCC Uniform Color Code using ANSI standard Z53.1 safety colors.
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Blue

  • Potable water

Green

  • Drain lines
  • Sewers

Orange

  • Communication, alarm or signal lines cables or conduit

Pink

  • Temporary survey markings

Purple

  • Irrigation and slurry lines
  • Reclaimed water

Red

  • Cables
  • Conduit and lighting cables
  • Electric power lines

White

  • Proposed excavating

Yellow


  • Gas
  • Gaseous materials
  • Oil
  • Petroleum
  • Steam