True or False: The Boat Crew Survival Vest should only be worn under a PFD.

The statement is false because the Boat Crew Survival Vest is designed to be worn as a standalone item, providing essential survival gear and flotation capabilities. It is not necessary to wear it under a Personal Flotation Device (PFD). The vest itself incorporates buoyancy features that enhance the safety of boat crew members in emergency situations, allowing them the freedom to wear it independently.

Wearing the survival vest alone allows quick access to its contents, which may include signaling devices, immediate personal flotation aid, and other survival equipment. The design and intended use of the vest emphasize readiness for rescue situations, where the ability to quickly don the vest without the encumbrance of additional layers is critical. Therefore, it is not a requirement to wear it under a PFD, making the correct answer clear.