What is confined space safety and name a typical permit-required confined space feature?

• A. Work in a space with limited entry/exit and often hazardous atmosphere or engulfment risk; typical features include hazardous atmosphere, inward configuration, or engulfment risk
• B. Open outdoor space with no atmospheric concerns
• C. A room with windows and normal air quality
• D. A storage area with no atmospheric concerns

Answer: (A)

Confined space safety focuses on protecting workers in areas that have limited entry or exit and may contain hazardous atmospheres or other dangers like engulfment. A permit-required confined space is defined by those conditions and typically requires an entry permit, along with practices such as atmospheric testing, ventilation, continuous monitoring, and a standby attendant with a rescue plan. A common feature that makes a space permit-required is the presence or potential for a hazardous atmosphere (oxygen deficiency, toxic or flammable gases). Other typical features include an inward‑configuring entry that makes exit or rescue hard, or the risk of engulfment. The other options describe spaces without these restricted access and atmospheric concerns, so they do not fit the definition of a permit-required confined space.