Final answer:
The question revolves around the regulations of wearing FD uniforms while off duty, which often varies by department but generally, full uniforms are not to be worn while off duty. The exact policy can depend on the specific department's rules.
Step-by-step explanation:
The question 'The regulation FD uniform excluding t-shirt may be worn while off duty. True or False?' relates to the policies regarding the wearing of uniform by members of the Fire Department (FD) when they are off duty. In the context of many fire departments, while on duty, firefighters are expected to wear a full regulation uniform. However, when off duty, the policies can vary by department. Many departments have regulations that prohibit wearing parts of the uniform outside of service times to avoid any misrepresentation or confusion. Without a specific department's regulations in mind, it's challenging to state a universal truth, but generally, wearing a regulatory FD uniform excluding a t-shirt while off duty is often False. It's essential for individuals to follow their respective department's policies on uniform to maintain professionalism and departmental integrity.