Scout's Toolbox Talks

Identifying Permit-Required Confined Spaces

Toolbox Talk:

Understand What Makes a Space “Permit-Required”

June 26, 2025

Not all confined spaces need a permit — but when they do, it’s for a reason.

Why It Matters:

Permit-required confined spaces (PRCS) come with serious hazards like toxic gases, engulfment risks, or limited oxygen. Knowing the difference between a simple confined space and one that’s permit-required can save lives.

Key Points:

  • A space becomes permit-required if it has any one of the following:
    • Contains or has the potential to contain a hazardous atmosphere
    • Contains a material that could engulf someone (e.g., grain, sand, water)
    • Has inwardly sloping walls or floors that could trap or asphyxiate a worker
    • Contains other serious safety or health hazards (e.g., live electrical, moving parts)
  • These spaces must be clearly identified, labeled, and logged on the site’s confined space list.
  • Entry requires a written permit, trained personnel, monitoring equipment, and rescue procedures.

✅ When a space meets any of these conditions, a permit is mandatory — no exceptions.

Ask the Crew:

  • Can you name the four conditions that make a space permit-required?
  • Have we confirmed whether any spaces on site meet this criteria?