AFTERDRAFT

What does CO mean in construction?

Short definition

A CO is a formal contract modification that changes scope, price, schedule, or other contract terms.

Longer explanation

Change orders document approved changes after contract execution and typically require owner and contractor agreement.

Example in context

The project team reviewed the CO during the construction phase.

Common users

  • Owners
  • Architects
  • Contractors
  • Construction managers

Related terms