What does a confined space need to have in order to require a permit?

A confined space requires a permit when it meets certain criteria that could pose risks to individuals entering it. These criteria include characteristics that may heighten the dangers present in the space.

Inwardly converging walls refer to spaces that can entrap an individual, causing physical hazards during entry or exit. This characteristic suggests a potential for entrapment, which is critical in evaluating the safety of a confined space.

The potential for engulfment indicates that a person could be surrounded by material, such as liquids or solids, that can overwhelm them. This could lead to suffocation or drowning, making it essential to have a permit in such circumstances.

A hazardous atmosphere means that the air quality in the confined space might contain toxic gases, insufficient oxygen, or flammable substances, all of which can lead to serious health risks or fatalities.

The presence of any of these factors signifies that the confined space poses significant hazards, which is why all of them combined necessitate a permit for entry. Each aspect plays a vital role in ensuring worker safety and compliance with safety regulations.