PRCS-001-CON — Learner reference

1. Recognize a permit space

By the end: Distinguish a confined space from a permit-required confined space.

This course explains construction confined spaces under 29 CFR 1926 Subpart AA. It is separate from the general-industry course. Work regulated by Subpart P (excavations), Subpart S (underground construction, caissons, cofferdams and compressed air), or Subpart Y (diving) is excluded from Subpart AA. The employer must identify the rules that apply to the actual work; an exclusion does not mean no safety requirements apply. Where Subpart AA applies, other applicable OSHA requirements addressing the hazard also apply.

A confined space has all three features: it is large enough for bodily entry; it has limited or restricted entry and exit; and it is not designed for continuous employee occupancy. A pit, vault, tank or duct may qualify. Limited access includes conditions that impede movement, such as ladders, slippery floors or poor lighting. Evaluate the actual conditions rather than relying on the space name.

A confined space is permit-required if it has an actual or potential hazardous atmosphere, an engulfment hazard, a shape that could trap or suffocate a person, or another recognized serious safety or health hazard. Normal air does not rule out an exposed moving part, incoming material or a trapping shape.

Before work begins, each employer must ensure a competent person identifies the confined spaces where employees it directs may work and evaluates which are permit spaces, including testing as needed. A competent person can identify existing and predictable hazards and has authority to take prompt corrective measures. A course score alone does not establish that designation.

Inform exposed employees of permit-space locations and dangers through signs or equally effective means. Notify employee representatives and the controlling contractor promptly by a method other than posting alone. Prevent entry by workers who are not authorized. Each entry employer must implement its written program at the site and make it available before and during entry.

Entry occurs when any part of the body breaks the plane of the opening, even if accidental or no work is performed. Leaning a head or arm inside can be entry. Do not cross the boundary to inspect or retrieve an item without the required preparation and authorization. This course is not an entry permit.

Basis: 1926.1201–1203(d)

2. Understand the hazards

By the end: Recognize atmospheric and physical hazards before entry.

Construction conditions change as trades arrive, equipment starts and systems are connected. Evaluate previous contents, incoming lines, temporary power, nearby exhaust and hazards created by cutting, coating or cleaning. A space safe earlier may become unsafe after another crew changes the work.

The standard defines hazardous oxygen levels as below 19.5 percent or above 23.5 percent by volume. Flammable gas, vapor or mist above 10 percent of its lower flammable limit is another hazardous-atmosphere condition. These are regulatory definitions, not permission to work at an alarm limit. The employer must set acceptable entry conditions for all hazards, which may be more restrictive.

Toxic substances may be dangerous even when oxygen and flammability readings look normal. Combustible dust and other immediately dangerous conditions also matter. A common four-gas meter does not detect every chemical. Neither smell nor the absence of symptoms proves that the atmosphere is safe.

Physical hazards include mechanical, electrical, hydraulic and pneumatic energy, engulfment, temperature extremes, noise and trapping surfaces. Chemicals that harm skin or eyes can also be physical hazards under this rule. Isolate or otherwise protect against the actual hazards. Personal protective equipment is not an engineering control or hazard isolation.

Entrants, attendants and supervisors must know how exposure can happen, its warning signs or symptoms, and its consequences. Confusion or unusual behavior can signal exposure. Do not wait for a worker to collapse. Alert the attendant and leave promptly when a warning sign, prohibited condition, evacuation order or alarm occurs.

Basis: 1926.1202; 1926.1204(b)–(c)

3. Prepare controls and equipment

By the end: Explain what must be in place before entry is authorized.

Each entry employer needs procedures for preventing unauthorized entry, identifying hazards, setting acceptable conditions, assigning roles, controlling permits, coordinating work and arranging rescue. Implement the written program at the construction site. A generic plan stored elsewhere is not enough if the actual work is not covered.

Isolate the space and its physical hazards. Methods may include blanking or disconnecting lines, double block and bleed, energy isolation, blocking mechanical linkages or barriers that completely prevent contact with a physical hazard. Select and verify the methods for the actual system. A stop button or promise not to restart is not isolation. Tagout must meet the protection conditions in the construction definition; a warning label alone is not enough.

Eliminate conditions such as pressure that make removal of an entrance cover unsafe. Control access, traffic and falling objects. Establish safe entry and exit. Verify that ventilation-failure monitoring can detect rising hazards soon enough for entrants to escape. A fan without a workable warning and exit arrangement is not a complete control.

If the atmosphere cannot be reduced below 10 percent of the lower flammable limit, the rule allows entry only under the specified inerting arrangement: the entire atmosphere must be noncombustible, appropriate PPE must address remaining atmospheric hazards, and physical hazards must be eliminated or isolated. Inerting creates an IDLH oxygen-deficient atmosphere. This is a specialized operation, not permission to enter with an ordinary mask. Never use oxygen to freshen air.

The employer must supply, maintain and ensure proper use of needed equipment at no cost to employees: testing and monitoring, ventilation, communications, PPE, lighting, barriers, access, rescue and other required equipment. Lighting must meet illumination requirements and suit the ignitable materials present. Respiratory protection has separate requirements. At least one attendant must remain outside during permit entry; all required controls must be ready before authorization.

Basis: 1926.1202; 1926.1204(a)–(d), (f)–(j)

4. Test and monitor the atmosphere

By the end: Explain testing order, equipment limits and worker participation.

Test the space before changing its natural ventilation and before authorizing entry, subject to the specific infeasible-isolation provision. Opening or ventilating a space can change the readings and conceal the original condition. Only trained personnel should use the actual equipment and procedures; do not enter an unevaluated space to take a sample.

Test oxygen first, then combustible gases and vapors, then toxic gases and vapors. Use sensors that can detect the actual contaminants. Understand sampling locations, sensor limits, instrument checks, alarms and manufacturer response times. One sample at a hatch does not represent every layer or work location.

Continuously monitor atmospheric hazards unless the employer demonstrates that continuous equipment for that hazard is not commercially available or that periodic monitoring is frequent enough to keep the hazard controlled at safe levels. If continuous monitoring is not used, periodic monitoring is still required often enough to verify acceptable conditions. Convenience alone does not justify occasional checks.

If the employer demonstrates that isolation is infeasible because the space is large or part of a continuous system, test before entry to the extent feasible. During entry, continuously monitor conditions where entrants work; the atmospheric exception in this specific provision is limited to continuous equipment not being commercially available. Provide an early-warning system that continuously monitors non-isolated engulfment hazards and gives entrants and attendants enough warning for safe exit.

Entrants or their representatives must be allowed to observe testing and monitoring and receive results immediately. If there is an indication that evaluation was inadequate and reevaluation is requested, perform it in their presence. Keep the actual results, times and tester identification. Stop work and respond to alarms or prohibited conditions rather than changing readings to fit the permit.

Basis: 1926.1204(e)

5. Read and use the entry permit

By the end: Identify the permit information and authorization needed for entry.

Each entry employer documents completed preparations on an entry permit. Before entry starts, the named entry supervisor signs it. Make the completed permit available to entrants at the portal or by an equally effective method so they can confirm preparation.

The permit identifies the space, purpose, date and authorized duration; entrants or an accurate tracking method; current attendants; and the current supervisor. It must include the signature or initials of each entry supervisor who authorizes entry. Include the method for detecting increasing atmospheric hazards if ventilation stops.

Record the hazards, isolation and control measures, acceptable conditions, and testing and monitoring results with tester names or initials and times. Identify rescue and emergency services and how to summon them, entrant-attendant communications, equipment and other necessary safety information. Identify additional permits such as hot work. The review worksheet covers all 16 elements of 1926.1206.

The permit may last no longer than needed for the identified task. When the work is completed, terminate entry and cancel it. If a prohibited condition arises, terminate entry. Suspension or cancellation is allowed only for a temporary condition that does not change the space configuration or create a new hazard within it; the space must be fully reassessed before reentry.

If the prohibited condition does not meet that narrow temporary-condition provision, cancel the permit. An expired, canceled or suspended permit is not permission to continue. Keep canceled permits at least one year and note problems on the relevant permit. Do not reuse a suspended permit automatically just because the alarm stopped.

Basis: 1926.1205–1206

6. Perform the authorized entrant’s duties

By the end: Recognize entrant responsibilities for equipment, communication and exit.

An authorized entrant is authorized by the entry supervisor and understands the space hazards, how exposure occurs, signs or symptoms and consequences. Review the actual permit and role before crossing the opening. The entry employer must provide the knowledge and skills for that work; a course title alone does not establish proficiency.

Use the specified equipment properly. This includes monitoring, communications, protective equipment and any retrieval equipment required by the plan. Know its limitations and the actions required if it fails. Do not silence an alarm or change a setting to avoid interrupting work.

Keep contact with the attendant as needed so the attendant can monitor your status and tell you to leave. Agree on the communication method and evacuation signal before entry. If required communication cannot be maintained, follow the evacuation procedure rather than assuming the attendant can see or hear you.

Alert the attendant if you recognize a warning sign or symptom of a dangerous exposure or detect a prohibited condition. Exit as quickly as possible when the attendant or supervisor orders evacuation, you recognize such a warning sign or symptom, you detect a prohibited condition, or an evacuation alarm activates.

You do not need to finish the task, retrieve tools or obtain a second opinion before responding to an evacuation trigger. Tell the team what happened from a safe location. Do not reenter merely because the alarm has stopped; the employer must address the condition and authorize any subsequent entry through the applicable procedure.

Basis: 1926.1208

7. Perform the attendant’s duties

By the end: Maintain entrant protection without distraction or unauthorized rescue entry.

The attendant remains outside the space until relieved by another attendant. Maintain a continuously accurate count and identification of the authorized entrants. Communicate enough to monitor their status and alert them to leave. Know the hazards and possible behavioral effects of exposure.

Watch conditions both inside and outside. Order immediate evacuation if a prohibited condition is detected, an entrant shows behavioral effects of exposure, an outside situation threatens entrants, or you cannot safely and effectively perform all attendant duties. Summon rescue and emergency services as soon as entrants may need help to escape.

Warn unauthorized people to stay away. If they have entered, tell them to exit immediately and inform the authorized entrants and entry supervisor. Do not leave the station to chase someone or accept a task that interferes with monitoring and protecting entrants.

An attendant may monitor more than one space only when all duties can be performed effectively for each. The program must address emergencies without distracting the attendant from those duties. The number of spaces alone does not prove that the arrangement is safe.

Perform non-entry rescue only as specified by the employer’s rescue procedure. Do not climb in after a collapsed worker. The narrow allowance for an attendant to enter for rescue requires the program to permit it, the necessary rescue training and equipment, and relief by another attendant. This online course does not establish those conditions.

Basis: 1926.1204(f)–(g); 1926.1209

8. Perform the entry supervisor’s duties

By the end: Verify entry readiness and maintain control through handover and closure.

The entry supervisor is a qualified person responsible for acceptable conditions, authorization, oversight and termination. The role requires demonstrated relevant knowledge and ability, not just a job title. Understand the hazards and verify the permit, tests, procedures and equipment before authorizing entry.

Verify that rescue services are available, the means of summoning them work and the employer will be notified as soon as the services become unavailable. A phone number alone does not establish coverage. Resolve a rescue gap before entry, and act under the plan if availability changes during the work.

Remove unauthorized individuals who enter or attempt to enter during operations using the employer’s safe procedures. Support the attendant’s warnings and keep access controlled. Do not solve unauthorized entry by sending another unprotected person inside.

When responsibility transfers, and at intervals dictated by the hazards and work, determine that operations still follow the permit and that acceptable entry conditions remain. A shift handover must transfer actual status, personnel, readings, controls and concerns, not just a signature.

Terminate entry and cancel or suspend the permit as 1926.1205 requires. A supervisor may also serve as entrant or attendant only if trained and equipped for each role and able to perform each duty. Combining titles does not erase the outside-attendant requirement or allow conflicting tasks.

Basis: 1926.1202; 1926.1210

9. Plan rescue before entry

By the end: Explain rescue-service evaluation and non-entry retrieval requirements.

Evaluate the rescue service for a response time suited to the actual hazards and for proficiency with the required tasks and equipment. Select a capable service that agrees to notify the employer immediately if it becomes unavailable. Inform it of hazards and provide access to spaces for planning and practice. A plan that only says to call 911 does not establish these arrangements.

Non-entry rescue is required unless retrieval equipment would increase the overall entry risk or would not contribute to rescue. If non-entry rescue is not selected, designate an entry rescue service. If it is selected, use the required retrieval arrangement and confirm before entry that emergency assistance is available if non-entry rescue fails.

Use the specified chest or full-body harness and retrieval line attached for successful removal. The outside end attaches to a mechanical device or fixed point so rescue can begin promptly. A mechanical device must be available for vertical spaces more than 5 feet deep. Wristlets or anklets are limited alternatives only with the employer’s required demonstration that a harness is infeasible or more hazardous and the alternative is safest and most effective. Do not use unsuitable lines, including arrangements likely to tangle or fail because of the space shape.

Designated employee rescuers need appropriate PPE, proficiency using it, assigned-rescue training and authorized-entrant proficiency, all at no cost. Train them in basic first aid and CPR, with at least one currently certified first-aid/CPR team member available. This online course does not establish technical rescue skill or first-aid/CPR certification.

Practice rescues before attempting an actual rescue and at least once every 12 months using actual or representative spaces matched to opening, size, configuration and access. The rule permits the stated exception when the employees properly performed a rescue in the last 12 months in the same or a similar space. Document the facts; a quiz or an unrelated drill does not qualify.

Follow the planned rescue procedure and prevent untrained entry rescue. Make required safety data or similar information available to the treating medical facility after a substance exposure. Actual rigging, retrieval and entry-rescue practice need qualified instruction and a controlled setting.

Basis: 1926.1204(i); 1926.1211

10. Distinguish alternate entry and reclassification

By the end: Distinguish construction alternate entry from competent-person reclassification.

Alternate procedures under 1926.1203(e) require the employer to demonstrate that all physical hazards are eliminated or isolated through engineering controls, leaving only an actual or potential atmospheric hazard. Continuous forced-air ventilation alone must keep entry safe, and entrants must be able to exit safely if it fails. Supporting monitoring and inspection data must be documented and available. Any initial entry needed to obtain that data uses the full permit-entry requirements.

Eliminate hazards that make cover removal unsafe and immediately guard the opening. Before entry, use a calibrated direct-reading instrument to test oxygen, flammables and potential toxic contaminants in that order, with an opportunity for observation. Ventilation must remove the hazardous atmosphere before entry, use clean air, serve occupied areas and continue until everyone leaves. No hazardous atmosphere is permitted while anyone is inside under this alternate procedure.

Continuously monitor unless the entry employer demonstrates that continuous equipment is not commercially available or periodic monitoring is sufficient. If continuous monitoring is used, alarms must notify all entrants at the specified threshold, or a worker must check the monitor often enough to allow safe escape. Otherwise periodic monitoring is required. Allow observation. If any hazard is detected, everyone exits immediately, the cause is evaluated and protection is implemented before later entry.

Provide safe entry and exit. A hoist must be designed and manufactured for personnel hoisting; a job-made system requires written approval by a registered professional engineer before use. Before alternate entry, certify the date, space location and responsible person’s signature and make the certification available to entrants or their representatives.

Reclassification under 1926.1203(g) requires a competent person’s determination. There must be no actual or potential atmospheric hazard, and other hazards must remain eliminated or isolated. Do this without entry unless the employer demonstrates it is infeasible; any necessary entry to eliminate or isolate hazards must first follow full permit-entry requirements. Testing and inspection must support the result. Ventilation control does not constitute atmospheric hazard elimination or isolation.

Document the reclassification basis, date, location and signature and make it available. If hazards arise, workers exit and the entry employer reevaluates and reclassifies as appropriate. A competent person must also reevaluate a non-permit space when changes could increase hazards or there is an indication that the original evaluation was inadequate. A clean reading or short task cannot substitute for this process.

Basis: 1926.1203(e)–(g)

11. Coordinate employers and learn from entries

By the end: Explain contractor coordination, permit retention and program review.

The host employer owns or manages the property. The controlling contractor has overall construction responsibility. An entry employer directs employees who will enter a permit space. One organization may fill more than one role, but each role’s duties still apply. Know the actual contacts before entry.

Before entry, the host provides the controlling contractor the information it has about known spaces, hazards or reasons for permit status, and previous protective precautions. The controlling contractor obtains that information and shares it, its own relevant information and precautions with each entering entity and other entities whose activities could foreseeably create a hazard in the space.

Each entry employer obtains the controlling contractor’s information and reports its permit-space program and hazards it expects to encounter or create. The controlling contractor and entry employers coordinate when multiple entities enter at the same time or when other simultaneous activities could create space hazards. A nearby trade that sends exhaust or material into a space matters even if its workers never enter.

After entry, the controlling contractor debriefs each entering entity, the entry employer promptly reports the program followed and hazards encountered or created, and the controlling contractor passes that information to the host. If no controlling contractor is present, the host or other employer arranging another employer’s entry work must fill that coordination role. A host or controlling contractor without employees entering is not required to enter just to gather this information.

Keep canceled permits at least one year and record problems. Review the program using canceled permits within one year after each entry; one annual review can cover the entries in a 12-month period. If no entry occurred in that period, that periodic review is not required. Correct deficiencies before subsequent entries when the program may not protect workers; do not wait for the annual review after a near miss or unexpected hazard.

Consult affected employees and representatives on development and implementation and make required information available. Retained documents must also be provided on request to the Secretary of Labor or designee. Record actual findings and corrections, not an automatic claim that a permit or course score proves safe work.

Basis: 1926.1203(h)–(i); 1926.1204(k)–(n); 1926.1205(f); 1926.1212–1213

12. Verify training and workplace proficiency

By the end: Identify understandable training, proficiency and record requirements.

Provide training at no cost to each affected employee, in a language and vocabulary the employee understands. It must give the understanding, knowledge and skills for assigned duties, including the actual hazards and how they are isolated, controlled or otherwise addressed. Workers not authorized for entry rescue must understand the dangers of attempting it.

Train before first assignment, before changed duties, when changed entry operations introduce a hazard not previously covered, and when evidence shows a deviation from procedures or a knowledge or use gap. Training must establish proficiency and teach new or revised procedures as needed. Do not wait for a calendar renewal date when a trigger occurs.

Use safe instruction and demonstrations with actual procedures and equipment. A person who can answer a quiz but cannot operate the monitor, communicate, track entrants or carry out the assigned steps still needs correction and reassessment. Do not practice in an uncontrolled space.

Maintain training records with each employee’s name, trainer names and training dates. Make them available to employees and their representatives for the period the employee is employed by that employer. Do not substitute a one-year canceled-permit retention rule for this training-record duty. Record work that actually happened.

The construction training rule does not impose a universal annual refresher on every entrant, attendant and supervisor. Event-based training triggers still apply. Designated employee rescue practice has its own before-rescue and at-least-every-12-month rule and limited actual-rescue exception. Program review, rescue practice and role retraining are different duties.

This course is the online knowledge component. Before assigning duties, the employer must complete site-specific instruction, establish proficiency, maintain training records and implement the actual program, equipment, permit and rescue arrangements. Completion does not grant entry authorization, competent-person status, respirator qualification or technical rescue competence.

Basis: 1926.1207; 1926.1211(b)