Training is where most lockout/tagout programs quietly fail. The procedures exist, the locks exist — but the authorized employee cannot name every energy source on the machine, or the affected operator does not know a tag means hands off. When OSHA interviews workers during an inspection, those two answers become citations under 1910.147(c)(7).
This guide covers what OSHA actually requires for LOTO training: who gets trained on what, when retraining is triggered (there is no fixed annual clock), what the certification must contain, and how to run training that survives contact with a real shift.
The three training audiences
OSHA 1910.147(c)(7) requires training matched to the employee role — one generic toolbox talk for everyone does not satisfy the standard. Each group needs different content because each group carries different duties:
- Authorized employees — anyone who locks out equipment to perform servicing. They need the full program: recognition of hazardous energy sources, the type and magnitude of energy in the workplace, and the methods of isolation and control.
- Affected employees — operators and nearby workers whose machines get locked out. They need the purpose and use of the energy control procedure, and the prohibition on restarting locked-out equipment.
- Other employees — everyone else who could encounter a lockout. They need to know the procedure exists and that locked or tagged equipment is never to be touched or restarted.
What authorized-employee training must cover
Authorized training is the deep end. The employee must leave able to read a machine-specific procedure and execute it: notify affected employees, shut down normally, isolate every source, apply personal locks, release stored energy, and verify zero energy before work.
OSHA has stated explicitly that merely handing out copies of procedures is not training. The employer must build real skill and knowledge — the ability to isolate every source on the machines the employee actually services. That means hands-on walkthroughs at the equipment, not just a video in a break room.
The six extra topics when tags are used
Wherever tagout is used, every affected and authorized employee must also be trained on the limitations of tags under 1910.147(c)(7)(ii) — because a tag restrains nobody:
- Tags are warning devices only and provide no physical restraint
- Tags must never be removed, bypassed, ignored, or defeated without authorization
- Tags must be legible and understandable to everyone in the area
- Tags and attachments must withstand the workplace environment
- Tags can create a false sense of security — their meaning is part of the program
- Tags must be securely attached so they cannot come off accidentally
How often: retraining triggers, not a calendar
OSHA sets no fixed annual retraining interval for LOTO — a common misconception. Retraining is event-driven under 1910.147(c)(7)(iii): whenever job assignments change, machines or processes present a new hazard, energy control procedures change, a periodic inspection reveals deviations, or the employer has reason to believe an employee no longer understands the procedure.
In practice, most mature programs still run an annual refresher alongside the inspection cycle — not because the standard names a yearly clock, but because inspections reliably surface the deviations that legally trigger retraining. Folding both onto one calendar keeps neither obligation slipping.
Retraining is triggered by change, not the calendar. Follow Tegis on Google for training checklists.
The certification you must keep
Under 1910.147(c)(7)(iv), the employer must certify that training happened and is current. Each certification must contain the employee name and the training date. Best-practice records go further: the employee role (authorized, affected, other), which machines and procedures were covered, the training method, assessment results, and the trainer identity.
Missing or generic certifications are among the most common training citations. An inspector who hears "we trained everyone last spring" and is shown no names and dates will treat it as no training at all.
Training that actually sticks
The programs with the fewest deviations share a pattern: short initial instruction, then observed practice on real equipment, then involvement in writing and reviewing procedures. Employees who help author a procedure follow it — and the walk-through doubles as the proficiency check the standard demands.
Online modules can cover the knowledge half (energy types, the standard, tag limitations) for affected and other employees. For authorized employees, online-only certificates do not demonstrate the required isolation skill — pair them with supervised lockouts on the actual machines and record both halves.
Key takeaways
- Train by role: full isolation skill for authorized, purpose-and-prohibition for affected, hands-off awareness for others.
- Handing out procedures is not training — authorized employees must demonstrate isolation competence.
- Retraining is triggered by change and deviations, not the calendar — but an annual refresher with the inspection is the practical standard.
- Certify every session with names and dates at minimum; add role, machines covered, and trainer.
- Tagout use adds six mandatory limitation topics for everyone in the area.
Frequently asked questions
Is lockout/tagout training required annually?
Not by a fixed clock. OSHA requires retraining when job assignments, machines, or procedures change, or when inspections reveal deviations. Many employers still run an annual refresher alongside the yearly periodic inspection because that inspection is what surfaces the deviations that trigger retraining.
Is online LOTO training enough for authorized employees?
No, not by itself. Online training can cover the knowledge component — energy types, the standard, tag limitations — but authorized employees must demonstrate the skill of isolating real equipment. Pair online modules with supervised, documented walkthroughs on the actual machines.
What training records does OSHA ask for?
Certification with each employee name and training date, kept current. Inspectors also expect the records to show role-appropriate content — that authorized employees were trained on isolation and affected employees on the prohibition — so record what was covered, not just who attended.
Do contractors and temp workers need LOTO training?
Yes. The host employer and the outside employer must brief each other on lockout procedures before work starts, and temp workers get the same role-based training as permanent workers in the same exposure. See our contractor and shift-change guide for the full handover.
What triggers retraining fastest in practice?
The annual periodic inspection. When the inspector finds employees deviating from the procedure — skipped verification, wrong isolation points — retraining is legally required to reestablish proficiency, and the certification must reflect it.