Use change orders for the project-change workflow
When the contract defines change orders, use that process for agreed additions, deletions, credits, or schedule adjustments to the work. Follow the required notice, review, and signature sequence.
Field guide
Change Order vs Contract Amendment
A change order is a specialized way to modify construction work. An amendment is a broader label for changing a signed agreement.
The labels are not universal. Some construction contracts use a change order to amend scope, contract sum, or contract time; other agreements use a separate amendment form for broader commercial or professional-services terms. The signed contract controls the correct instrument and approval path.
Open prefilled generatorUse an amendment when the agreement calls for one
A broader amendment may be appropriate for provisions such as services, responsibilities, insurance, dispute terms, or other signed language outside the ordinary project-change workflow. The document should identify the original agreement and the clauses being replaced.
Do not let the label hide the legal effect
Whether a document is called a change order, amendment, modification, or supplemental agreement, verify authority, consideration, signatures, effective date, and interaction with earlier changes. Obtain qualified review for consequential terms.
Decision table
Which modification path fits?
QuestionChange orderAmendment
Common scopeSpecific change to work, cost, or timeAny identified term of a signed agreement
WorkflowUsually defined in construction change provisionsUsually follows the amendment clause or party agreement
Project useFrequent during active constructionUsed when broader agreement language changes
Required approvalAs stated by the change-order clauseAs stated by the agreement and applicable law
Controlling answerThe signed construction contractThe signed agreement being amended
Next step
Put the workflow into practice
CO-001
Two different changes to one project
Example- Change order
- Add 120 square feet of tile, increase the contract sum by $3,480, and add two work days.
- Potential amendment
- Replace the agreement's insurance requirement and dispute procedure for the remainder of the project.
- Reference
- Each document identifies the original agreement, affected language, and effective date.
- Review
- The parties confirm the contract's required signers and obtain legal review for consequential terms.
What this example covers
Use the document named in the signed agreement
Identify exactly which contract sections are changing
Record scope, price, time, and effective date
Keep unchanged contract terms expressly in effect
More field paperwork
Related contractor guides
Primary references
Check the governing documents
These references explain common document workflows. Your signed contract and applicable law control your project.
- Modifying and amending AIA agreementsAIA Contract Documents
Important note
This is practical paperwork guidance, not legal advice. Review important construction documents with qualified counsel before use.