Confined Space Pre-Entry Permit
Use this confined space pre-entry permit to verify atmosphere, isolation, ventilation, communication, and rescue readiness before anyone enters a permit-required space.
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Overview
This Confined Space Pre-Entry Permit template is a go/no-go record for permit-required confined space entry. It captures the checks that must be in place before authorized entrants cross the threshold: permit authorization, atmospheric testing, energy isolation, ventilation, communication, and rescue readiness.
Use it when a space has hazards that cannot be eliminated by opening a hatch or running a fan alone. It is especially useful for tanks, pits, vaults, manholes, silos, and process vessels where oxygen deficiency, flammable vapors, toxic contaminants, moving parts, or connected lines can create serious risk. The template helps the entry supervisor and attendant confirm that the space is identified correctly, the permit is current, the atmosphere is acceptable, and the rescue plan is real, not assumed.
Do not use this permit as a generic work authorization for routine tasks outside a confined space. It is also not enough by itself if your site has not already defined rescue capability, training, calibration practices, lockout-tagout procedures, and acceptable exposure limits. If the space is non-permit or the hazard profile is different, use a lighter checklist or a different control form. The value of this template is that it forces the team to verify the conditions that matter immediately before entry, and to document the controls that make the entry defensible.
Standards & compliance context
- This template supports OSHA permit-required confined space expectations in general industry by documenting authorization, hazard control, and rescue readiness before entry.
- The atmospheric testing and ventilation sections align with common confined space practices under OSHA and ANSI/ASSP guidance for verifying oxygen, flammability, and toxic exposure conditions.
- The isolation and energy control section reinforces lockout-tagout and line isolation practices that are commonly required when a confined space contains mechanical, electrical, hydraulic, pneumatic, or process energy.
- The rescue readiness section reflects the need for a real rescue capability under OSHA and related safety program standards, not just an emergency contact list.
- If the space is in construction, agriculture, or a regulated facility with additional requirements, adapt the permit to the applicable OSHA framework, site procedures, and any AHJ expectations.
General regulatory context for orientation only — verify current requirements with counsel or the relevant agency before relying on this template for compliance.
What's inside this template
Permit & Entry Authorization
This section proves the space is correctly identified, the permit is current, and the entry supervisor has formally approved the work before anyone enters.
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Current confined space permit is completed and posted at the entry point
Confirm the permit is active for this entry, fully completed, and available at the worksite for review by the entry team.
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Space identification matches the permit and entry location
Verify the confined space name/ID, location, and scope match the work area being entered.
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Entry supervisor has authorized entry and is present or immediately available
Confirm the entry supervisor has reviewed conditions and authorized the entry in accordance with the permit.
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Permit conditions and limitations have been reviewed with the entry team
Confirm the team understands hazards, acceptable entry conditions, communication methods, and stop-work criteria.
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Entry duration and re-entry conditions are defined
Verify the permit specifies the time limits, monitoring frequency, and conditions requiring evacuation or re-evaluation.
Atmospheric Testing
This section captures the atmospheric baseline and monitoring plan so oxygen, flammable, and toxic hazards are checked before and during entry.
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Atmospheric testing performed before entry by a trained person using calibrated equipment
Verify testing was completed before entry and the instrument is within calibration/functional check requirements.
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Oxygen concentration is within acceptable range
Record measured oxygen concentration and confirm it is within the acceptable entry range established by the permit.
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Flammable gas/vapor concentration is below the permit limit
Record the measured percentage of the lower explosive limit (LEL) and confirm it is below the permit threshold.
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Toxic atmospheric contaminants are below applicable exposure limits
Record readings for known or suspected toxic hazards and confirm they are below the permit or exposure limit criteria.
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Initial and continuous monitoring requirements are defined
Verify the permit specifies whether continuous monitoring is required and identifies the monitoring frequency or trigger points.
Isolation & Energy Control
This section verifies that all hazardous energy and connected systems are isolated so the space cannot be energized or pressurized unexpectedly.
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All energy sources have been isolated and locked/tagged out as required
Confirm electrical, mechanical, hydraulic, pneumatic, chemical, thermal, and gravity hazards have been controlled before entry.
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Pipes, lines, and ducts connected to the space are isolated or blanked
Verify process lines, vents, and transfer lines are isolated to prevent introduction of hazardous materials.
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Stored energy has been relieved or restrained
Confirm pressure, tension, rotation, spring energy, or other stored energy has been dissipated or secured.
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Moving parts, agitators, or internal mechanisms are secured against activation
Verify internal equipment cannot start, rotate, or shift during entry.
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Isolation points are verified and documented on the permit
Confirm the permit or supporting documentation identifies each isolation point and verification method used.
Ventilation & Entry Conditions
This section confirms that forced air, clean intake placement, and stable conditions are actually making the space safe to occupy.
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Forced-air ventilation is operating where required
Verify ventilation equipment is in place, functioning, and directed to maintain acceptable atmospheric conditions.
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Ventilation air intake is located in a clean source area
Confirm the air supply is not drawing contaminants from exhausts, process vents, vehicle traffic, or other hazardous sources.
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Air movement reaches the occupied zone of the confined space
Verify the ventilation setup effectively reaches the area where entrants will work, not just the opening.
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Atmospheric conditions remain within acceptable limits after ventilation start-up
Record post-ventilation readings and confirm the space remains within permit limits before entry.
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Ventilation equipment is protected from interruption during entry
Confirm power source, ducting, and equipment placement will not be easily disconnected or damaged during the job.
Communication & Rescue Readiness
This section ensures the attendant, communication method, and rescue response are in place before entry begins.
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Reliable communication method is established between entrants and attendant
Confirm the team has a working method to maintain continuous or periodic communication as required by the permit.
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Attendant is assigned and positioned to monitor the entry continuously
Verify the attendant is dedicated to the entry, understands duties, and is not assigned conflicting tasks.
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Rescue service is available and notified as required
Confirm rescue personnel or service has been identified, contacted, and can respond within the required timeframe.
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Rescue equipment is on site and ready for immediate use
Verify retrieval systems, harnesses, lifelines, breathing apparatus, or other required rescue equipment are staged and functional.
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Emergency procedures and evacuation triggers are understood by the team
Confirm the team knows when to evacuate, who initiates rescue, and how to summon emergency response.
How to use this template
- 1. Identify the exact confined space and entry job, then complete the permit with the space ID, location, work scope, and entry duration before anyone approaches the opening.
- 2. Assign the entry supervisor, attendant, and atmospheric tester, and confirm each person understands the permit conditions, stop-work triggers, and re-entry rules.
- 3. Test the atmosphere with calibrated equipment, record the readings, and repeat or monitor continuously whenever the permit or hazard assessment requires it.
- 4. Verify isolation, lockout-tagout, blanking, and stored-energy controls, then document the isolation points so the team can confirm nothing can energize the space unexpectedly.
- 5. Start ventilation if required, confirm the intake is from a clean source and the occupied zone is being reached, and then re-check atmospheric conditions after startup.
- 6. Confirm communication, attendant coverage, and rescue readiness at the entry point, then post the permit and keep it active only while all conditions remain within limits.
Best practices
- Use the exact space identifier and entry location on the permit so no one confuses one vessel, vault, or pit with another.
- Record the actual gas readings, time of test, and tester identity instead of writing only pass/fail.
- Treat continuous monitoring as a separate requirement from the initial test and define who watches the alarm conditions.
- Verify isolation at the source, not just at the control panel, especially for pipes, lines, ducts, and stored mechanical energy.
- Place the ventilation intake in a clean area and keep the blower and ducting protected from being shut off, crushed, or moved during entry.
- Keep the attendant at the entry point and do not let that role be split with other work that would distract from continuous monitoring.
- Document rescue contact details and equipment availability before entry, because a rescue plan that exists only on paper is a common failure point.
What this template typically catches
Issues teams running this template most often surface in practice:
Common use cases
Frequently asked questions
What spaces does this permit apply to?
This template is for permit-required confined spaces where hazardous atmosphere, engulfment, entrapment, or other serious hazards may exist. It fits tanks, pits, vaults, silos, manholes, and similar spaces that need formal pre-entry verification. If the space is not permit-required, use a simpler confined space checklist instead. The permit should match the exact space and entry location.
How often should a pre-entry permit be completed?
Complete a new permit before each entry event and whenever conditions change enough to affect hazards or controls. If the entry is interrupted, the permit should be reviewed before re-entry. A permit should not be treated as a standing approval for future work. Revalidation is especially important after ventilation changes, isolation changes, or alarm events.
Who should run this inspection or audit?
The entry supervisor typically owns the permit, while a trained atmospheric tester, attendant, and authorized entrants support the process. In practice, the person completing the permit should understand confined space hazards, testing equipment, and isolation methods. A competent person or similarly qualified safety lead often reviews the controls before entry starts. The key is that the signer can verify the conditions, not just collect signatures.
Does this template align with OSHA requirements?
Yes, it is built around OSHA permit-required confined space expectations for general industry. It also reflects common best practices for atmospheric testing, lockout-tagout, ventilation, attendant coverage, and rescue readiness. If you operate in construction or agriculture, the same core logic still applies but the governing framework may differ. Use the template as a pre-entry verification record, not as a substitute for your written program.
What are the most common mistakes when using this permit?
Common mistakes include testing only once when continuous monitoring is required, using uncalibrated gas meters, and skipping isolation of connected lines or stored energy. Another frequent issue is assuming ventilation alone makes the space safe without verifying the atmosphere after startup. Teams also miss rescue readiness details, such as not confirming the rescue service can respond in time. This template helps catch those gaps before entry begins.
Can I customize this permit for our site or industry?
Yes, and you should. Add your site-specific space IDs, acceptable atmospheric limits, rescue contacts, communication method, and isolation verification steps. You can also tailor it for wastewater, utilities, food processing, or maintenance shutdown work. Keep the core sections intact so the permit still covers authorization, atmosphere, isolation, ventilation, and rescue.
How does this compare with an ad-hoc paper checklist?
An ad-hoc checklist often misses one of the critical controls or leaves no clear record of who verified it. This template creates a repeatable permit trail that shows the space, hazards, controls, and go/no-go decision in one place. That makes it easier to brief the crew, stop unsafe entry, and document compliance. It also reduces confusion when multiple shifts or contractors are involved.
What integrations or attachments work well with this template?
This permit pairs well with gas meter calibration logs, lockout-tagout records, rescue plans, and entrant/attendant training records. Many teams also attach photos of isolation points, ventilation setup, and the posted permit at the entry. If your workflow system supports it, link the permit to the work order or maintenance ticket. That keeps the entry record connected to the job that created the confined space work.
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