NCIDQ Interior Design Professional Exam (IDPX) Practice Exam

A signed change order is essential for the authorization of variations from the original contract documents because it formally documents any changes agreed upon by the involved parties, typically the client and the contractor or designer. This instrument not only specifies the nature of the change but often includes adjustments to the project budget and timeline, thereby providing clarity and preventing potential disputes.

In construction and design projects, maintaining a clear, documented record of changes is crucial. A signed change order serves as legal evidence of ascent to the modifications, ensuring that all parties acknowledge and consent to the alterations made, which is vital for the enforceability of the contract. This process helps maintain professional integrity and accountability throughout the project lifecycle.

Other options like a written agreement or a letter of intent may not provide the necessary specificity or formal commitment regarding the changes. A citation of design justification, while potentially valuable for internal reference or explanation of design decisions, does not constitute an official acceptance of any amendments to the contract.