Name a type of confined space that may require special considerations for entry.

Tanks, silos, or sewers are classified as types of confined spaces that often pose significant safety hazards due to their specific risks and conditions. These environments can contain toxic gases, lack sufficient oxygen, or present other physical hazards like engulfment and entrapment risks. Because of these dangers, entering such confined spaces requires special precautions, including proper ventilation, monitoring for hazardous atmospheres, and the use of personal protective equipment. Additionally, work in these areas often necessitates following stringent entry procedures, employing retrieval systems, and ensuring that emergency rescue plans are in place. This level of planning and safety measures is vital due to the potentially life-threatening situations that can arise in these confined environments.

In contrast, offices, storage rooms, and outdoor workspaces typically do not present the same level of hazards associated with confined spaces, leading to a lower requirement for special considerations during entry.