SafetyQuestion 457 of 521
A space is a 'permit-required confined space' when it is large enough to enter, has limited means of entry/exit, is not designed for continuous occupancy, AND:
a.It is always located outdoors
b.It contains or has the potential to contain a hazardous atmosphere, engulfment, entrapment, or other serious hazard
c.It is smaller than 4 feet in any direction
d.It has good natural ventilation
Explanation
A permit-required confined space adds at least one serious hazard—hazardous atmosphere, engulfment, an inwardly converging/entrapping configuration, or another recognized hazard—to the basic confined-space criteria. Being outdoors, small, or well-ventilated does not define a permit space; the presence of a serious hazard does.
Law Reference: Cal/OSHA Title 8 §5157Practice all 521 questions free — no signup required.
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