Confined space is a term from labor-safety regulations that refers to an area whose cramped conditions make it dangerous. Confined spaces present special hazards to workers, including risks of toxic gas accumulation, fires, falls, flooding, and entrapment. A utility tunnel, the inside of a boiler (only accessible when the boiler is off), the inside of a fluid storage tank, and a small underground electrical vault could all be classified as confined spaces. Special labor regulations typically apply to confined spaces — employees are typically required to undergo special registration procedures to enter one, and are often required to wear special safety gear (respirators, helmets, etc.) depending on the hazards within. In the U.S., the Occupational Safety and Health Administration makes regulations with respect to confined spaces.

External links

• OSHA page on confined spaces
• Guide to confined space regulations from Alberta Canada

Safety