Shop drawings prepared by others must bear whose written approval on the submittal?

• A. The contractor's supervisor's signature
• B. No approvals required
• C. The licensed professional's written approval on the submittal
• D. The owner's approval

Answer: (C)

The main idea is that shop drawings produced by others must be reviewed and approved by the design professional responsible for the project. In practice, the licensed professional (architect or engineer) signs off in writing on the submittal to confirm that the drawings conform to the contract documents and the design intent. This ensures that fabrication and installation align with the approved design and coordinates with other trades. A supervisor’s signature or owner’s consent isn’t a substitute for this professional approval, and some approval is indeed required for submittals to ensure proper design conformity.