Lockout/Tagout Authorized Employee Training: What 1910.147 Requires

What the Standard Actually Requires

29 CFR 1910.147 covers the servicing and maintenance of machines and equipment where the unexpected startup, energization, or release of stored energy could injure someone. The core requirement is an energy control program, and the standard is unusually specific about what that program contains.

First, the employer develops and documents energy control procedures. These are not generic. The standard expects procedures that identify the specific energy sources on a specific machine, the specific means of isolating each one, and the sequence for shutting down, isolating, blocking, and securing.

Second, the employer trains employees according to their role. Third, the employer verifies that the procedures are actually being followed through a periodic inspection. A program missing any one of those parts is incomplete regardless of how good the other two look.

The standard also recognizes stored energy explicitly. Electrical isolation alone is not lockout when the machine still holds hydraulic pressure, pneumatic pressure, gravity load, spring tension, or thermal energy. Relieving, disconnecting, restraining, or otherwise rendering that energy safe is part of the procedure.

Authorized, Affected, and Other Employees

The standard defines three categories of people and gives each a different training depth. Getting the category wrong is one of the most common program errors, because it usually means someone is under-trained for what they actually do.

An authorized employee is the person who locks out equipment to perform servicing or maintenance on it. This role gets the full training: recognition of hazardous energy sources, the type and magnitude of energy in the workplace, and the methods and means of isolation and control.

An affected employee is someone who operates the machine or works in the area where servicing is performed. Their training covers the purpose and use of the procedure, and the rule that they must never attempt to restart or reenergize equipment that is locked or tagged out.

Other employees are anyone else who works in an area where energy control procedures may be used. Their training is limited but real. They need to know the prohibition against restarting locked or tagged equipment. Note that an operator can be an affected employee for one machine and an authorized employee for another, so classify by task rather than by job title.

Who Needs Authorized Employee Training

Maintenance technicians and millwrights are the obvious group. Anyone whose regular work involves opening a machine, clearing a jam past a guard, changing tooling, or servicing a drive is performing the work the standard was written for.

Industrial electricians, mechanics, and hydraulic and pneumatic technicians all fall squarely in scope. So do facility maintenance staff working on HVAC, compressors, pumps, conveyors, and process equipment.

Production employees are frequently overlooked. Where operators are expected to clear jams, perform setup changes, or reach past a guard, they are performing servicing and they need authorized employee training even though maintenance is not their job title.

Contractors and outside service providers create their own obligation. When an outside employer performs servicing at your facility, the standard requires the on-site employer and the outside employer to inform each other of their respective lockout procedures. Do not assume a vendor's program is compatible with yours.

Does Online Training Satisfy the Requirement

The standard requires that training ensure employees understand the purpose and function of the energy control program and acquire the knowledge and skills required for safe application, usage, and removal of energy controls. It does not specify a delivery method.

Online training handles the knowledge side well. Understanding energy types, the difference between lockout and tagout, the required sequence of shutdown and isolation, verification of isolation, group lockout, shift change handoff, and the rules on removing another employee's lock all transfer to a structured course.

The skills side is machine-specific and stays with the employer. Walking the actual written procedure for a specific press, conveyor, or pump, locating the disconnects and bleed valves, applying the correct device, and performing verification are things that happen on your floor with your hardware.

A defensible program pairs the two. The online course gives you a dated record that the knowledge requirements were delivered and understood. The in-plant walkthrough gives you a record that the employee demonstrated the procedure on the equipment they will actually service.

Retraining and Periodic Inspection

The standard names specific retraining triggers rather than a general calendar rule. Retraining is required when there is a change in job assignments, a change in machines, equipment, or processes that presents a new hazard, or a change in the energy control procedures themselves.

Retraining is also required whenever a periodic inspection or any other evidence reveals deviations from the procedure or inadequacies in an employee's knowledge. That is a meaningful obligation, because it means a failed inspection creates a training duty and not just a corrective action note.

Separately, the standard requires a periodic inspection of the energy control procedure at least annually. The inspection must be performed by an authorized employee other than the one using the procedure being inspected, and it has to review the procedure with the employees involved.

Many employers run annual refresher training alongside the annual periodic inspection because the timing lines up naturally. That is a sound practice, but the two obligations are distinct. Confirm your own cycle against the standard, your written program, and any customer or corporate requirement that applies.

What Documentation an Inspector Expects

The written energy control procedures come first. Inspectors look for machine-specific procedures, not a single generic document copied across an entire plant. Where a facility has hundreds of machines, expect questions about how the procedures are organized and kept current after equipment changes.

Training records are next. The standard requires the employer to certify that training has been accomplished and is being kept up to date, and the certification has to contain each employee's name and the training dates.

Periodic inspection records carry their own certification requirement. The certification identifies the machine or equipment on which the procedure was used, the date of the inspection, the employees included, and the person performing the inspection.

Inspectors also read the physical evidence. Locks that are not individually keyed, a shared lock box with no accountability, or devices stored in a drawer rather than assigned to a person all suggest a program that exists on paper only.

Practical Guidance for an Employer Training a Team

Build the equipment inventory before you build the training plan. You cannot classify employees correctly until you know which machines require lockout, which qualify under the limited exceptions, and who touches each one.

Be careful with the minor servicing exception. It applies narrowly to routine, repetitive activities integral to production where alternative measures provide effective protection. Programs get cited when the exception is stretched to cover work that clearly requires full lockout.

Assign locks individually and make removal accountable. The standard permits removal of a lock by someone other than the person who applied it only under specific conditions, including verified attempts to contact that employee and notification before they return to work. Write that procedure down before you need it.

Plan for group lockout and shift change deliberately. These are the two situations where control most often breaks down, and both need a written method that keeps each authorized employee's personal protection intact throughout the job.

Practical Guidance for an Individual Worker

If you are taking this course on your own, you are usually preparing for a maintenance or technician role where the employer expects you to arrive knowing the standard. Course completion at $59 gives you a dated record you can present.

Understand the boundary of what that record proves. It shows you were trained on the requirements of 29 CFR 1910.147. It does not authorize you to lock out any specific machine at any specific employer. Authorization is granted by the employer, on their equipment, under their written procedure.

On a new job, ask to see the written energy control procedure for the equipment you will service before you touch it. If a procedure does not exist for that machine, that is information your supervisor needs to hear.

Never remove a lock that is not yours, and never accept a verbal assurance that a machine is safe in place of your own verification. Verification of isolation is a step in the procedure for a reason, and it is the step that protects you personally.

Frequently asked questions