As Master of an inspected small passenger vessel, you have a question regarding a proposed modification to a watertight bulkhead. In which subchapter of title 46 of the Code of Federal Regulations would you find the answer?

Correct Answer: Option D — Subchapter T

46 CFR Subchapter T governs the design, construction, and inspection of small passenger vessels (under 100 gross tons). Any modifications to critical structural components, such as watertight bulkheads, must comply with the standards set forth in this specific subchapter to ensure the vessel maintains its required structural integrity.