What documentation is essential for a project's submittals?

The correct answer is based on the importance of having comprehensive and clear documentation for project submittals. Submittals typically serve as a means of communication between the project team and stakeholders, ensuring that the design intent, materials, and methods are understood and approved before implementation.

Photos and test results play a crucial role in this process as they provide visual proof of compliance with the project specifications. They document the actual condition of materials and workmanship, verifying that everything meets the required standards. For example, photos can illustrate the installation processes or site conditions, while test results provide quantitative data that confirms materials or systems function as intended.

In contrast, other types of documentation like material costs, meeting notes, and supplier contracts, while valuable in their own right, do not directly serve the primary purpose of submittals, which is to confirm alignment with project requirements and readiness for the next steps in construction or implementation.