Which of the following is NOT a responsibility of the special inspection agency according to the International Building Code?

The responsibility of the special inspection agency is to ensure that construction materials and methods comply with the building code and the approved design. In this context, submitting fabrication reports to the structural engineer is typically not a direct responsibility of the special inspection agency. Instead, the role of the special inspection agency focuses on inspecting and testing materials and workmanship to guarantee they meet the outlined specifications and standards.

Testing representative samples of products or materials, maintaining a record of tests performed, and providing sufficiently detailed records to verify compliance with the test standards are all crucial duties of the special inspection agency. These responsibilities are aimed at documenting compliance and ensuring that all aspects of the construction adhere to regulatory requirements and the completed design.

In contrast, submitting fabrication reports relates more to the process of the fabricator or manufacturer, and such reports are generally directed to the structural engineer or other relevant parties for project oversight. Therefore, the correct response highlights that submitting these types of reports is not under the purview of the special inspection agency within the framework established by the International Building Code.