The use of instruments of service for additions to the project outside the scope requires written consent from which parties?

• A. Owner
• B. Architect
• C. Owner and Architect's Consultants
• D. Owner, Architect, and Architect's Consultants

Answer: (D)

Instruments of Service are the design documents and other work products created by the Architect and its Consultants. The Owner is licensed to use them for the project as originally defined, but using them for additions outside the original scope is effectively extending the project and reusing protected design work. Because these documents are the intellectual property and professional responsibility of the Architect and each Consultant, their consent is required to ensure proper authorization, professional oversight, and liability protection. So written consent must come from the Owner, the Architect, and the Architect’s Consultants.