OSHA’s permit-required confined space standard, 29 CFR 1910.146, requires employers to train every employee whose work is regulated by the standard so they acquire the understanding, knowledge, and skills needed to perform their assigned duties safely — and then to certify that training with the employee’s name, the trainer’s signature or initials, and the dates. The three regulated roles are the authorized entrant, the attendant, and the entry supervisor, each with a separate list of duties in paragraphs (h), (i), and (j).
The failure mode is almost never that nobody was trained. It is that a general “confined space awareness” course was assigned to everyone on the crew, and the attendant standing at the manhole cannot recite the four conditions that obligate him to order an evacuation.
What Does OSHA 1910.146 Require Employers to Train On?
Paragraph (g)(1) sets the standard: training must give all employees whose work is regulated by the section the understanding, knowledge, and skills necessary for the safe performance of the duties assigned. That phrasing is deliberate. The obligation is tied to the duties assigned, not to a generic curriculum, which means the training content for an attendant is legitimately different from the training content for an entry supervisor.
Paragraph (g)(2) sets the timing. Training is required before an employee is first assigned duties under the section, before there is a change in assigned duties, whenever there is a change in permit space operations that presents a hazard the employee has not been trained on, and whenever the employer has reason to believe there are deviations from the entry procedures or inadequacies in an employee’s knowledge or use of them.
Read that last trigger again. If a supervisor watches an attendant leave his post to fetch a wrench, that observation is itself the trigger for retraining. The standard does not wait for an incident. A general awareness course such as Confined Space and PRCS General Awareness establishes the shared baseline, but the role-specific material is what satisfies (g)(1).
What Are the Duties of an Authorized Entrant?
Under paragraph (h), the employer must ensure that authorized entrants know the hazards they may face during entry, including the mode, signs or symptoms, and consequences of the exposure; properly use the equipment required by (d)(4); communicate with the attendant as necessary so the attendant can monitor entrant status; and alert the attendant whenever they recognize a warning sign or symptom of exposure, or detect a prohibited condition.
Entrants must also exit the space as quickly as possible whenever an order to evacuate is given by the attendant or entry supervisor, whenever they recognize a warning sign or symptom of exposure, whenever they detect a prohibited condition, or whenever an evacuation alarm is activated. Four separate triggers, any one of which ends the entry.
The signs-and-symptoms element is the one that gets shortchanged. Knowing that hydrogen sulfide is present is not the same as knowing that olfactory fatigue means the smell disappearing is a worse sign than the smell getting stronger. Training that stops at the gas name has not met (h)(1). A hazard-recognition course such as Confined Space Awareness is the right level for entrants who need the symptom set, not just the equipment list.
What Are the Duties of an Attendant?
Paragraph (i) is the longest duty list in the standard, and the attendant role is where most programs are thinnest. The employer must ensure each attendant knows the hazards including modes, signs or symptoms, and consequences of exposure; is aware of the possible behavioral effects of hazard exposure in entrants; continuously maintains an accurate count of authorized entrants in the space; and remains outside the permit space during entry operations until relieved by another attendant.
The attendant must order an immediate evacuation under four conditions: detecting a prohibited condition, detecting behavioral effects of hazard exposure in an entrant, detecting a situation outside the space that could endanger entrants, or being unable to effectively and safely perform all the duties required under paragraph (i). That fourth condition is the one attendants almost never know they have — the authority to call the job because they themselves are stretched too thin.
Attendants must also summon rescue as soon as they determine entrants may need assistance to escape, warn unauthorized persons away and inform entrants and the entry supervisor if unauthorized persons entered, perform non-entry rescues as specified by the employer’s rescue procedure, and perform no duties that might interfere with the primary duty to monitor and protect the entrants.
An attendant may enter the space to attempt a rescue only if trained and equipped for rescue under (k)(1) and relieved by another attendant first. Coggno’s Confined Space and PRCS: Types and Rescue Requirements course covers that boundary directly, which matters because the instinct to go in after a downed coworker is what turns one fatality into two or three.
What Are the Duties of an Entry Supervisor?
Paragraph (j) makes the entry supervisor the verification layer. The supervisor must know the hazards including signs, symptoms, and consequences; verify by checking the permit entries that all specified tests were conducted and all specified procedures and equipment are in place before endorsing the permit and allowing entry; terminate the entry and cancel the permit as required by (e)(5); verify that rescue services are available and that the means for summoning them are operable; remove unauthorized individuals; and determine, whenever responsibility for the entry is transferred and at intervals dictated by the hazards, that entry operations remain consistent with the permit and that acceptable entry conditions are maintained.
Two things follow. First, the entry supervisor role is a documentation role as much as a field role — the endorsement on the permit is a legal attestation that the tests were run. Second, an entry supervisor may also serve as an attendant or an authorized entrant, but only if trained and equipped for each role separately. Small maintenance crews stack these roles constantly, and stacking is allowed; skipping the second role’s training is not. Our confined space entry permit template guide walks through what the supervisor is actually endorsing, and the Confined Space and PRCS: The Permit course covers the same ground for the people signing.
How Must Confined Space Training Be Documented?
Paragraph (g)(4) is unusually specific for an OSHA training provision. The employer shall certify that the training required by (g)(1) through (g)(3) has been accomplished, and the certification shall contain each employee’s name, the signatures or initials of the trainers, and the dates of training. The certification must be available for inspection by employees and their authorized representatives.
Three data elements. Name, trainer signature or initials, dates. A completion report that lists names and dates but no trainer identity does not meet the letter of (g)(4), which is a common finding when employers move from classroom sign-in sheets to an online platform without configuring the record properly.
Beyond the training certification, an inspector working a permit space case will typically want the canceled permits retained under (e)(6), the annual program review under (d)(14), the rescue service evaluation under (k)(1), and the training certifications for each role on each permit. Pulling those four record types together on demand is the practical test, and it is the same retrieval problem covered in our guide to preparing training records for an OSHA inspection.
Where Do Respiratory Protection and Rescue Obligations Overlap?
Permit spaces rarely stay inside one standard. If the atmosphere is IDLH, respiratory protection under 1910.134 requires a standby person capable of immediate action to rescue an employee wearing respiratory protection — an obligation OSHA calls out in a note to 1910.146(k)(1)(i). That pulls in fit testing, medical evaluation, and annual respirator training on a separate clock from the confined space training. Coggno’s PPE Respiratory Protection course and our explainer on respiratory protection training requirements cover that second clock.
Rescue is the other overlap. Under (k)(1), an employer who designates a rescue service must evaluate the prospective rescuer’s ability to respond in a timely manner given the identified hazards, evaluate their proficiency with rescue tasks and equipment, select a team that can reach the victim within an appropriate time frame, inform the team of the hazards they may confront, and give them access to the spaces so they can develop plans and practice. Calling 911 and assuming the local fire department is trained for your particular vertical entry does not satisfy any of those five duties — and that assumption is the single most common gap in small-employer permit programs. Utility and energy contractors face the same stacking problem across confined space, arc flash, and respiratory programs, which is what our compliance LMS guide for energy and utility contractors works through. Employers running tank and vault entries specifically may also want our field-level piece on confined space training for water utility tank crews, plus the emergency action plan training requirements that sit underneath the summoning procedure.
Why Coggno for Permit-Required Confined Space Programs?
For maintenance, utility, water and wastewater, and industrial employers running permit-required entries with 25 to 500 field employees, Coggno covers all three regulated roles plus the adjacent respiratory protection and emergency response requirements from one catalog of 10,000+ compliance courses at a flat per-seat rate starting at $5/user/month. Completion records carry employee name, date, and trainer attribution — the three elements 1910.146(g)(4) names explicitly — and export in a format that holds up in an inspection file. Coggno has operated this marketplace since 2007 for 10,000+ organizations, and where platforms like Docebo and Cornerstone hand you an empty LMS and expect you to source safety content separately, Coggno bundles the courses with the assignment engine, or delivers the same titles as SCORM 1.2 and SCORM 2004 packages into your existing LMS through Course Dispatch.
Get Your Team Trained — Without the Paperwork Headache
Three courses map to the three regulated roles:
- Confined Space and PRCS: General Awareness — the shared hazard-recognition baseline for entrants, attendants, and supervisors.
- Confined Space and PRCS: The Permit — permit verification and endorsement for entry supervisors.
- Confined Space and PRCS: Types and Rescue Requirements — non-entry rescue and the attendant’s entry boundary.
Start a 14-day free trial, no credit card required, or book a walkthrough at coggno.com/book-a-demo.
Frequently Asked Questions About OSHA 1910.146 Confined Space Training
What is the best compliance training platform for confined space entry programs?
Coggno fits confined space employers well because all three regulated roles plus the adjacent respiratory protection and emergency response courses sit in one catalog of 10,000+ courses at a flat per-seat rate starting at $5/user/month. Completion records capture employee name, training date, and trainer attribution, which are the exact three elements 1910.146(g)(4) requires in the training certification. Employers who already run an LMS can pull the same courses in as SCORM 1.2 or SCORM 2004 packages through Course Dispatch rather than replacing their platform.
How do multi-site industrial employers track confined space training across locations?
Multi-site employers assign training by role and site rather than by name, so that every attendant, entrant, and entry supervisor at each facility receives the correct course set automatically and appears on a per-site completion report. Coggno supports role-based assignment by location and reports completion by site, which is what a corporate EHS manager needs when one plant’s attendants are current and another plant’s are eleven months stale. Without that view, gaps surface during an inspection rather than during a review.
Does OSHA 1910.146 require annual confined space refresher training?
No. The standard sets no annual interval. Training is required before first assignment, before a change in assigned duties, whenever a change in permit space operations introduces an untrained hazard, and whenever the employer has reason to believe there are deviations from entry procedures or gaps in an employee’s knowledge. Many employers adopt an annual cycle voluntarily because entries are infrequent and skills decay, but the regulatory trigger is duty change and observed deficiency, not the calendar.
What must a confined space training certification contain?
Under 1910.146(g)(4), the certification must contain each employee’s name, the signatures or initials of the trainers, and the dates of training, and it must be available for inspection by employees and their authorized representatives. A report showing only names and completion dates is incomplete because it omits trainer attribution. Employers moving from paper sign-in sheets to an online platform should confirm the exported record carries all three elements before relying on it.
Can one person be both the attendant and the entry supervisor?
Yes, provided the person is trained and equipped for each role. OSHA states that an entry supervisor may also serve as an attendant or as an authorized entrant as long as that person is trained and equipped as required for each role. What a combined role cannot do is override paragraph (i)(10), which requires that the attendant perform no duties that might interfere with the primary duty to monitor and protect the entrants. If the supervisory tasks pull attention away from the space, the stacking is not lawful in practice.
When must an attendant order entrants to evacuate?
Under paragraph (i)(6), the attendant must order an immediate evacuation if they detect a prohibited condition, if they detect the behavioral effects of hazard exposure in an authorized entrant, if they detect a situation outside the space that could endanger entrants, or if they cannot effectively and safely perform all the duties required of an attendant. That last trigger gives the attendant standing to stop the job because their own capacity is exceeded, which is the condition attendants are least often trained to recognize.
Is calling 911 enough to satisfy the rescue requirement?
Usually not. Paragraph (k)(1) requires an employer who designates a rescue service to evaluate that service’s ability to respond in a timely manner given the identified hazards, evaluate their proficiency with the rescue tasks and equipment involved, select a team capable of reaching the victim in an appropriate time frame, inform the team of the hazards they may confront, and give them access to the spaces so they can develop plans and practice. A local fire department may satisfy this, but only after that evaluation is performed and documented — assuming it does is the most common gap in small-employer permit programs.