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
Related resources
Construction Contract TermsContract and agreement terms used for pricing, obligations, general conditions, payment, changes, and claims.Construction Change Management TermsTerms used to identify, price, direct, approve, and record construction changes.RFI vs ASIUnderstand the difference between a request for information and an architect's supplemental instruction.CCD vs Change OrderCompare a construction change directive with a formal change order.Construction RFI ProcessA practical guide to creating, routing, answering, and closing RFIs on construction projects.Construction Change Order ProcessA field-tested overview of how construction changes are identified, priced, approved, and recorded.RFI Log TemplateFields and structure for tracking construction RFIs from draft through closeout.Change Order Log TemplateA practical structure for tracking construction change requests, directives, approvals, and contract adjustments.