Scout's Toolbox Talks

Identifying Permit-Required Confined Spaces

Toolbox Talk:

Know What Counts as a Permit-Required Confined Space

June 26, 2025

Some confined spaces require more than just caution — they require a permit. You need to know the difference.

Why It Matters:

Permit-required confined spaces can contain deadly hazards like toxic gases, engulfment risks, or low oxygen. Identifying these spaces before entry is the law — and can save your life.

Key Points:

  • A confined space is large enough to enter, has limited entry/exit, and isn’t designed for continuous occupancy.
  • A permit is required if the space contains:
    • Hazardous atmosphere (e.g. gas, vapors, low oxygen)
    • Engulfment risk (e.g. grain bins, tanks)
    • Internal configuration that could trap or asphyxiate
    • Any other recognized serious safety or health hazard
  • Common examples: tanks, vaults, pits, sewers, and some crawlspaces.
  • OSHA requires an evaluation before entry to determine if the space is permit-required.

✅ If a space is permit-required, do not enter until all procedures are in place.

Ask the Crew:

  • Have we identified any confined spaces on this site?
  • Do we know which ones require a permit before entry?