
The Occupational Safety Leadership Podcast Episode 122 - Bryan Haywood - Permit and Non-Permit Required Confined Spaces
Episode 122 brings Bryan Haywood back to break down one of the most misunderstood topics in confined space safety: the difference between permit‑required and non‑permit required confined spaces. He explains why the distinction matters, how to classify spaces correctly, and the risks organizations create when they oversimplify or mislabel spaces.
Core MessageA confined space is only “non‑permit” if all hazards are eliminated—not controlled, not reduced, not monitored… eliminated. Most spaces people think are “non‑permit” actually require a permit.
Key Points from the Episode 1. What Makes a Confined SpaceBryan reinforces the three criteria:
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Large enough to enter
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Limited entry/exit
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Not designed for continuous occupancy
If all three apply, it’s a confined space. Then you determine whether it’s permit‑required.
2. Permit‑Required Confined Spaces (PRCS)A space becomes permit‑required if it has any of the following:
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Actual or potential hazardous atmosphere
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Engulfment hazard
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Internal configuration that traps or asphyxiates
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Any other recognized serious safety or health hazard
If even one hazard exists, it’s PRCS.
3. Non‑Permit Confined SpacesA confined space can be classified as non‑permit only if:
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All hazards are completely eliminated, not just controlled
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No atmospheric hazards exist or could develop
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No mechanical, electrical, or process hazards remain
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The space cannot create a new hazard during entry
Bryan stresses that “ventilated safe” is not the same as “hazard eliminated.”
4. Common MisclassificationsBryan calls out frequent mistakes:
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Calling a space “non‑permit” because “we’ve never had a problem”
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Relying on ventilation instead of eliminating hazards
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Ignoring potential atmospheric changes
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Treating routine entries as justification for downgrading the classification
These errors lead to serious incidents because workers enter without proper controls.
5. Why the Distinction Matters-
Permit spaces require trained entrants, attendants, and supervisors
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Rescue planning changes dramatically between classifications
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Atmospheric monitoring is mandatory in PRCS
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Documentation and oversight increase safety and accountability
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Misclassification removes critical layers of protection
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When in doubt, classify as permit‑required
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Re‑evaluate spaces when processes, chemicals, or conditions change
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Train employees on the difference—not just the definitions
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Never downgrade a space without a documented hazard‑elimination process
Most confined spaces are permit‑required, and treating them as anything less puts workers at risk. Bryan Haywood’s message is clear: hazard elimination—not convenience—determines classification. When organizations classify spaces correctly, they prevent incidents and strengthen their entire confined space program.
