What does the term "confined space" refer to?

The term "confined space" specifically refers to a space that is not designed for continuous human occupancy and has limited means of entry and exit. This definition is crucial because confined spaces can pose significant safety hazards, including restricted movement, reduced access for emergency response, and potential atmospheric dangers such as toxic gases or low oxygen levels.

In practice, confined spaces can include areas such as tanks, silos, ducts, and pipelines, where a worker may need to enter to perform tasks but faces the risk of entrapment or exposure to hazardous conditions. Understanding this definition is vital for anyone involved in safety management or tasked with entering such spaces, ensuring they recognize the need for proper safety protocols, including permits and monitoring systems.

The other options do not align with this definition; they either describe areas intended for human occupation or those that offer broad access, both of which do not reflect the characteristics and risks associated with confined spaces.