Which of the following is NOT a reason for requiring a PFD?

The correct answer indicates that potential exposure to hazardous chemicals is not a reason for requiring a personal flotation device (PFD). PFDs are specifically designed for situations where individuals are at risk of drowning, particularly in environments where they are working near open water or on vessels. The primary function of a PFD is to provide buoyancy and support for individuals who may find themselves in water unexpectedly, thereby reducing the risk of drowning.

In contexts such as working on vessels or near open water, the presence of water itself constitutes a direct risk, necessitating the use of PFDs. These devices are crucial for ensuring safety in marine operations, where the likelihood of falling or being thrown into the water is significant. On the other hand, while hazardous chemicals pose various health and safety risks, they do not directly relate to immersion in water or the need for flotation support, which is the fundamental purpose of PFDs. Therefore, while personal protective equipment is necessary for dealing with chemicals, flotation devices are specifically aimed at water-related hazards.