What is submittal review, and why is it important in Cx?

• A. Operational training manuals only.
• B. Review of supplier submittals for compliance with design and Cx requirements; ensures compatibility with OPR/BOD.
• C. Choice of color scheme.
• D. Review of contractor payroll.

Answer: (B)

Submittal review is the process of checking supplier submittals—shop drawings, product data, samples, warranties, and operation and maintenance manuals—to confirm they meet the project design and commissioning requirements and align with the Owner’s Project Requirements and the Basis of Design. This review happens before and during construction so any issues that could affect performance, compatibility, or operability are caught early. By ensuring that proposed equipment and materials conform to the design intent and that the documentation needed for commissioning and ongoing operation is complete, submittal review supports a smooth start-up, proper integration with other systems, and a verifiable path from design to handover. The focus on compatibility with the OPR and BOD is what makes this best: it ties every submittal back to what the project was intended to achieve and what the commissioning process will verify. Other options miss the broader, design- and Cx-aligned scope of submittals, focusing on items like training manuals only, cosmetic choices, or unrelated administrative tasks.