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Confined Space

4.7(284 reviews)
Confined Space

Course Overview

Confined space training teaches you how to work safely in permit-required confined spaces under OSHA 29 CFR 1910.146 and 29 CFR 1926 Subpart AA. This 2-hour online course covers confined space identification, atmospheric and physical hazards, permit-required entry procedures, personnel responsibilities, atmospheric testing, equipment, and emergency response.

  • Covers the three-part confined space definition and the four conditions that make a space permit-required.
  • Trains the whole entry team: authorized entrants, attendants, entry supervisors and emergency responders.
  • Includes four downloads: a confined space entry program manual, a written program sample, permit and form.

Related training: Confined Space in Construction, the Confined Space Supervisor course, and HAZWOPER Confined Space Entry.

  • 2 hours, self-paced
  • Instant certificate
  • Mobile friendly
$20.00

Per seat. One-time payment, no subscription.

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30-day satisfaction guarantee. No hidden fees.

Need A Business Account?Volume discounts for teams of 5 or more.
Course Clips

Everything You Need to Know
About This Course

The course runs four units: identifying spaces, the hazards inside them, who does what on the entry team, and the equipment and procedures that keep an entry controlled. Knowledge checks run through each unit.

  • Identifying a confined space.
  • Fifteen confined space types.
  • Hazardous atmospheres.
  • Engulfment, configuration and physical hazards.
  • Entry-team roles and duties.
  • The written permit space program.
  • Preparing and cancelling an entry permit.
  • Atmospheric testing and monitoring.
  • Isolation, lockout/tagout, blanking and blocking.
  • Ventilation and other engineering controls.
  • Respiratory protection and retrieval equipment.
  • Hot work inside a confined space.
  • Non-permit spaces and reclassification.
  • Contractor and host employer duties.
  • Rescue and emergency services.

OSHA Standard29 CFR 1910.146
Course Duration2 hours
Format100% online, fully narrated with photos and interactivity
Passing Score70% on final exam
CertificatePersonalized certificate, printable immediately upon passing
LanguagesEnglish
Device CompatibilityDesktop, tablet, and smartphone
ProgressProgress saved automatically, stop and restart without losing your place
Instructor SupportAccess professional instructors for guidance and answers to your course-related questions.
AcceptedOur courses meet federal standards, but state requirements may vary. Please verify before purchase.

This course is for the whole permit-space entry team, not just the person climbing inside. Assign it to entrants, attendants and entry supervisors who work around tanks, vaults, pits, vessels, manholes or other spaces your workplace treats as permit-required.

  • Authorized entrants who go inside tanks, vaults, pits and vessels
  • Attendants who stand watch at the opening and keep the entrant count
  • Entry supervisors who prepare, sign and cancel the entry permit
  • Maintenance technicians who enter boilers, ducts and mixing vessels
  • Wastewater and utility crews working manholes, sewers and lift stations
  • Grain and feed handlers entering silos, bins and hoppers
  • Tank cleaners and vacuum truck operators working highway and rail tankers
  • Plant supervisors who assign work inside permit spaces
  • Contractor crews entering a client's permit spaces, and the host site staff who brief them
  • Safety managers writing or updating a permit space program

Use this course anywhere crews may enter spaces that were not built for continuous occupancy and may contain serious hazards. The common pattern is simple: if your work involves tanks, pits, vaults, silos, sewers, vessels or similar spaces, confined space training belongs on the checklist.

  • Manufacturing plants: reactor vessels, digesters, mixers and boilers
  • Water and wastewater utilities: manholes, wet wells and lift stations
  • Municipal public works: storm drains, utility vaults and sewer lines
  • Oil, gas and chemical: pressure vessels, bulk tanks and process piping
  • Food and beverage processing: silos, vats and holding tanks
  • Agriculture and grain handling: manure pits, grain bins and septic tanks
  • Pulp, paper and textiles: dryers, storage chests and dust collection systems
  • Transportation and pipelines: tunnels, locks and pipeline sections
  • Rail and trucking: highway tankers, rail tank cars and hopper cars
  • Shipbuilding and longshoring: holds, compartments and ship tanks
  • Mining and tunnelling: shafts, tunnels and subsurface excavations
  • Vehicle and equipment maintenance: repair pits and below-grade bays

Which Confined Space Course: Entry Team or Supervisor?

This course trains the whole entry team on the permit space program. The Confined Space Supervisor course goes deeper on the one person who runs the entry and signs the permit.

  • Confined Space. The page you're on. Entrants, attendants and entry supervisors all take it, because everyone on an entry works from the same permit and the same written program.
  • Confined Space in Construction. For crews whose work is construction, alteration or repair at a site with confined spaces. Built around the construction confined space standard and what it asks of the site. View the Confined Space in Construction
  • Confined Space Supervisor. For the individual named as entry supervisor, who verifies conditions, endorses the permit before entry begins and cancels it afterwards. One role, in depth. View the Confined Space Supervisor

Most crews start here, then send the entry supervisor to the supervisor course. Both certificates go in the same training file.
 
 

What Changes on Site After Confined Space Training

After this course a crew can tell a permit space from a non-permit space under 29 CFR 1910.146(b), read the permit before they go in, and knows who to call when a reading moves.

  • The space gets classified before anyone opens it. Three criteria make a space confined. Four more conditions make it permit-required. The crew learns to check both before the cover comes off.
  • The attendant stays outside and keeps the count. One of the attendant's duties is knowing exactly who is inside at any moment. The course covers the full duty list, including the conditions that make the attendant order an evacuation.
  • The permit stops being paperwork. The course walks the learner through a real permit form field by field, so the crew knows what each entry on it means rather than signing something they have never read.
  • Rescue gets arranged before the entry, not during it. Under 29 CFR 1910.146(k)(1) the employer evaluates a prospective rescue service's ability to respond in time and its proficiency with the rescue tasks for that particular space. The course covers what that evaluation asks, so the arrangement is made before anyone opens the space.

Classify the space, read the permit, know when to call the evacuation. That is the sequence this course is built around.

Verified Course Reviews

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4.7
Based on 284 reviews
5
76
76%
4
17
17%
3
5
5%
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1-2 of 284 reviews
  1. Teddy Smith
    Verified owner
    Confined SpaceConfined Space

    Loads a little slowly. Other than that, it was a good course.

    (0) (0)
  2. Noah Allen
    Verified owner
    Confined SpaceConfined Space

    excellent course

    (0) (0)

Frequently Asked Questions

Everything you need to know about the Confined Space.

Confined space training teaches workers to recognize confined spaces, understand the hazards present (atmospheric, physical, engulfment), and follow safe entry procedures per OSHA standards. A confined space is any area large enough to enter, with limited or restricted means of entry or exit, and not designed for continuous occupancy. Examples include tanks, silos, vaults, manholes, pits, pipelines, and tunnels. Training covers confined space identification, hazard assessment, permit-required entry procedures, roles and responsibilities of entry personnel, and emergency response protocols.

OSHA requires confined space training for any worker who enters or works around permit-required confined spaces, as set out in 29 CFR 1910.146 for general industry and 29 CFR 1926 Subpart AA for construction. This covers maintenance workers, tank cleaners, utility workers, construction crews, HVAC technicians, welders, pipeline workers, wastewater plant operators, firefighters, and anyone entering spaces such as storage tanks, silos, vats, pits, manholes, and tunnels. Importantly, it's not only the person going inside who needs training: attendants, who stay outside to monitor entrants and summon rescue, must be trained too, and so must entry supervisors who authorize and oversee the work. Employers are responsible for ensuring every worker involved in an entry understands the hazards and their specific role before work begins. This course satisfies that knowledge-based training requirement.

eTraining’s Confined Space Training takes approximately 2 hours to complete online. The course covers both general industry (29 CFR 1910.146) and construction (29 CFR 1926 Subpart AA) requirements. It is self-paced, so you can pause and resume on the same device at any time.

The three main categories of confined space hazards are atmospheric, physical, and environmental. Atmospheric hazards are the leading cause of confined space deaths and include oxygen deficiency (below 19.5%) or enrichment (above 23.5%), toxic gases such as carbon monoxide and hydrogen sulfide, and flammable vapors. Physical hazards include engulfment by stored materials like grain or sand, entrapment by converging walls or sloping floors, moving machinery, and electrical hazards. Environmental hazards cover extreme heat, excessive noise, limited visibility, and flooding. Under OSHA's 29 CFR 1910.146, the atmosphere must be tested before entry — first for oxygen, then combustible gases, then toxic gases — because these hazards are often invisible and odorless. Recognizing all three categories is the foundation of safe confined-space entry, and it's a core focus of this training course.

A confined space meets three criteria: it is large enough for a worker to enter and perform work, it has limited or restricted means of entry or exit, and it is not designed for continuous occupancy. Examples include tanks, silos, vaults, manholes, and pits. A permit-required confined space meets all three of those criteria plus one or more added hazards: it contains or may contain a hazardous atmosphere, contains material that could engulf an entrant, has converging walls or a sloping floor that could trap someone, or contains any other recognized serious safety or health hazard. Under OSHA's 29 CFR 1910.146, permit-required spaces demand a written entry permit, atmospheric testing, an attendant stationed outside, and designated entry personnel. Appendix A of the standard provides a decision flow chart to help employers classify each space correctly.

A confined space entry permit is a written document required by OSHA before workers enter a permit-required confined space. It must include: the space to be entered, purpose of entry, date and authorized duration, authorized entrants and attendants, name of entry supervisor, hazards identified, measures to control hazards, atmospheric testing results, rescue and emergency procedures, and communication procedures. The permit must be posted at the entry point.

A confined space entry team consists of four key roles: (1) Entry Supervisor – authorizes entry, verifies precautions, and terminates entry if needed; (2) Authorized Entrant – the worker who enters the confined space; (3) Attendant – remains outside the space to monitor entrants, maintain communication, and summon rescue if needed; (4) Rescue Personnel – trained and equipped to perform rescue operations if an emergency occurs. Each role has specific pre-entry, entry, and post-entry responsibilities.

OSHA's Permit-Required Confined Spaces standard for general industry is 29 CFR 1910.146, published in 1993 and still the governing rule today. For construction work, the standard is 29 CFR 1926 Subpart AA, which OSHA added in 2015 to give construction crews confined-space protections comparable to general industry. Both standards require employers to evaluate the workplace and identify confined spaces, assess the hazards present, implement written permit-entry procedures, provide worker training, and establish rescue capabilities before anyone enters. The full regulatory text is published in the eCFR (29 CFR 1910.146). eTraining's course covers the knowledge-based requirements from both standards, so it applies whether your work falls under general industry or construction. State requirements can differ, so always confirm your local rules before relying on any single course.

Yes. Upon passing the final exam with a score of 70% or higher, you can immediately print a certificate of completion. This certificate serves as proof of training for your employer.

Yes. The course is accessible on desktop computers, laptops, tablets, and smartphones. Progress saves automatically on the same device, so you can stop and resume where you left off.

There is no federally mandated expiration date for this training certificate. However, health and safety plans should be reviewed and updated annually, and whenever workplace conditions, hazards, or regulations change. Refresher training is recommended to stay current with evolving OSHA standards and best practices for safety program management.

Yes. This course is 100% online and fully self-paced. There is no in-person component required. The course uses a combination of audio, full-motion video, text, and graphics.

Better Training. Better Outcomes.

Fifteen years, 200,000+ professionals certified, and a completion rate roughly double the industry average.

OSHA citation printed on every certificate

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No setup. No LMS. Training in minutes.

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Built for field workers, not classrooms

Grounded in real jobsite operations. Scenarios reflect the work your crew actually does.

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200,000+
Professionals certified
87%
Completion rate (industry avg <45%)
10M+
Hours of training delivered
15
Years in business

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