Define a permit-required confined space. Select all that apply.

Answer

According to OSHA standards, a permit-required confined space is a confined space that has one or more of the following characteristics: 1. Contains or has the potential to contain a hazardous atmosphere, 2. Contains a material with the potential for engulfing an entrant, 3. Has an internal configuration such that an entrant could be trapped or asphyxiated by inwardly converging walls or by a floor which slopes downward and tapers to a smaller cross-section, or 4. Contains any other recognized serious safety or health hazard. Therefore, all four options must be selected.