How is a confined space defined?

A confined space is characterized by having limited entry and exit points and is designed for personnel to enter and perform work activities. This type of space usually does not have adequate ventilation and may not be intended for continuous human occupancy, as it can present risks such as hazardous atmospheric conditions, engulfment hazards, or difficulties in rescue operations.

The definition emphasizes the limited means of entry and exit because these conditions can create immediate life-threatening situations in case of an emergency. Confined spaces require special safety protocols to ensure that workers can safely enter, work, and exit without being exposed to potential hazards.

While continuous occupancy is part of the consideration for other types of spaces, confined spaces are typically meant for temporary work rather than ongoing residence. Similarly, the presence of hazardous materials alone does not define a confined space; many areas can have hazards without fitting the criteria of a confined space. Thus, recognizing the characteristics that distinguish confined spaces is crucial for ensuring safety protocols and responses during work operations.