What defines a confined space?

A confined space is primarily defined by its limited means for entry or exit. This characteristic poses significant safety risks, as it may hinder the ability of individuals to escape in an emergency situation. Confined spaces can be found in various environments—such as storage tanks, pits, and silos—and they often have restricted openings that make accessing and exiting them difficult.

While the other choices discuss aspects that might be relevant to certain types of spaces, they do not capture the essence of what defines a confined space. For example, a space that is large enough for a group of people to enter does not necessarily mean it is confined; it could still provide adequate exit routes. Similarly, a space designed for continuous occupancy does not imply that it is a confined space. Therefore, the best definition focuses on the restricted access, which is crucial for understanding the inherent risks associated with working in confined spaces.