What is a key characteristic of a confined space?

A key characteristic of a confined space is that it is large enough for a person to physically enter and perform work. Confined spaces are typically not intended for continuous human occupancy and are often characterized by limited means for entry or exit. This aspect is crucial because it implies that activities within such spaces can pose specific safety risks, including limited ventilation, the potential presence of hazardous substances, and difficulties in escaping.

In contrast, spaces designed for temporary occupancy would not necessarily qualify as confined if they have adequate ventilation and safety measures in place. Spaces accessible by multiple entries also do not meet the criteria of a confined space, as the accessibility indicates a lower risk of entrapment or hazardous conditions. Lastly, spaces that are exclusively for machinery use may not qualify as confined spaces if there is no potential for human entry or if they lack the required hazards associated with confined space work. Hence, the defining aspect of a confined space lies in its dimensions and the ability for a person to enter and work within it.