What is categorized as an interior space on a boat?

An enclosed space intended to remain dry under normal conditions is classified as an interior space on a boat because it describes an area designed for occupancy or storage that is protected from water intrusion during regular use. This definition is essential in the context of boat design and safety standards, as it emphasizes the importance of maintaining a dry, livable environment within the vessel.

In contrast, spaces where mechanical parts are stored may not necessarily be designed to remain dry and could be considered part of the machinery spaces. Areas that frequently experience water exposure are typically classified as deck or external spaces rather than interior, as they do not meet the criteria for a protected environment. Similarly, a space utilized exclusively for electrical circuitry might not fit the definition of an interior space if it is not enclosed or designed to stay dry, as electrical systems can be located in various parts of a vessel that are not considered interior.