A space that meets the definition of a confined space and contains serious safety and health hazards is referred to as what?

A space that meets the definition of a confined space and contains serious safety and health hazards is referred to as a permit-required confined space. This designation is crucial for ensuring the safety of workers who may need to enter such spaces. In this context, a permit-required confined space not only has the characteristics of a confined space—limited entry and exit, and is not intended for continuous human occupancy—but also has specific hazards that could pose serious risks to workers, such as toxic atmospheres, potential for engulfment, or other serious threats.

The use of a permit system is a safety protocol that mandates certain precautions, training, and rescue plans before entry is allowed. This system ensures that all potential dangers are acknowledged and managed so that any entry into these hazardous environments is conducted safely, minimizing the risk of accidents or health issues for workers involved.

Other classifications, like a non-permit-required confined space, do not involve serious health and safety hazards, which distinguishes them from permit-required confined spaces. Therefore, the presence of serious hazards is what necessitates the additional safety measures associated with a permit-required designation.