Every blank on a confined space permit is a potential citation. When OSHA inspects after a confined space incident, they don't ask "what happened" — they ask for the permit. If the atmospheric testing entry is empty, if the attendant isn't named, if the rescue plan isn't attached — each blank is a separate willful citation.
Permit-Required vs Non-Permit Confined Space
OSHA 1910.146 distinguishes permit-required confined spaces (PRCS) from non-permit confined spaces. If any of these are true, it's permit-required:
- Contains or has potential to contain hazardous atmosphere
- Material with potential for engulfment
- Configuration that could trap or asphyxiate
- Any other recognized serious safety or health hazard
What Must Be On The Permit
- Space identification (location, description)
- Purpose of entry
- Date and duration of permit
- Authorized entrants (named)
- Attendant(s) (named)
- Entry supervisor (named)
- Hazards identified
- Isolation methods used (LOTO, blanking, blinding)
- Acceptable entry conditions (atmospheric limits)
- Atmospheric testing results (initial and periodic)
- Rescue and emergency services (named, contact info)
- Communication procedure
- Equipment required (ventilation, PPE, retrieval)
- Other permits attached (hot work, LOTO, etc.)
What's In The Forbes Confined Space Pack
- Confined space entry permit template
- Confined space entry program (written)
- Atmospheric testing log
- Attendant duties briefing
- Entry supervisor sign-off
- Rescue plan template (non-entry, entry, technical)
- Confined space evaluation form
- Contractor coordination form
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Frequently Asked Questions
What's the difference between a permit-required and non-permit confined space?
Permit-required = has hazardous atmosphere potential, engulfment potential, entrapment configuration, or other recognized hazards. Non-permit = confined space that meets the definition (limited entry/exit, not designed for continuous occupancy) but has NO hazards. Non-permit spaces don't need permits, but you still need to evaluate them and document the evaluation.
Do I need atmospheric testing before every entry?
Yes. 1910.146(d)(5) requires atmospheric testing prior to entry, and periodic re-testing during the entry when conditions may change. Order of testing: oxygen first, then flammables, then toxics. Testing must be done from outside the space when possible.
What are the acceptable atmospheric limits?
Oxygen: 19.5% to 23.5%. Flammable gas/vapor: below 10% LEL. Toxic contaminants: below permissible exposure limits (varies by substance). Any reading outside these = space is not safe for entry until conditions change.
Do I need a permit for a manhole in the street?
If it's classified as a permit-required confined space (most sewer, utility, and telecom manholes are), yes. This is one of the most common confined space citations in construction — crews entering utility manholes without permits, atmospheric testing, or attendants.
Can the attendant enter the space to help someone?
Only if the attendant is trained and equipped for entry rescue AND another qualified attendant takes their position outside. Non-entry rescue is preferred — retrieval line, tripod hoist. Untrained attendant entering to rescue is how confined space deaths become multi-fatality events.
What's the biggest confined space citation risk?
Rescue plan absence or deficiency. Under 1910.146(d)(9), the employer must have a rescue plan and demonstrate the rescue service can reach victims in a timely manner. 'We'll call 911' is not a rescue plan for most permit spaces. This is where the largest confined space penalties come from.