Lockout/Tagout

The lockout/tagout standard mandates that employers establish a comprehensive energy control program to protect workers from the sudden energization or startup of machinery. Before any employee performs servicing or maintenance where they could be exposed to hazardous energy, the equipment must be isolated from its energy source and rendered inoperative.

Under 29 CFR 1910.147(c)(4), employers must develop and document specific procedures for shutting down, isolating, and securing equipment. These procedures must include clear steps for applying lockout or tagout devices, verifying that the machine is deenergized, and notifying affected employees before work begins or ends.

This regulation applies to general industry workplaces where employees perform servicing or maintenance on machines and equipment, such as manufacturing plants, food processing facilities, and industrial warehouses. It covers authorized employees who perform the maintenance and affected employees who operate the machinery. It does not apply to construction or agriculture, nor does it cover work on cord-and-plug connected equipment if the plug remains under the exclusive control of the worker.

OSHA frequently cites employers under 29 CFR 1910.147(c)(4) for failing to develop or document specific energy control procedures for individual machines. Other common citations involve 1910.147(c)(6) for failing to conduct annual periodic inspections of the energy control program or 1910.147(c)(7) for inadequate employee training on hazardous energy recognition.

In the workplace, these violations often manifest as a culture of convenience where workers are encouraged to bypass safety protocols to save time. A worker might be told to perform a quick adjustment on a conveyor belt without locking out the power, or a supervisor might fail to provide the necessary locks and tags, leaving workers exposed to the risk of a machine starting up while they are inside the danger zone.

Violations of the lockout/tagout standard are frequently classified as serious, willful, or repeat, often resulting in significant financial penalties. Because this regulation is consistently among the most cited standards by OSHA, inspections are often triggered by reports of severe injuries, such as amputations or fatalities. OSHA enforcement officers look for evidence of a lack of training, missing hardware, and the absence of written procedures during both programmed inspections and those initiated by employee complaints.

You have the right to a workplace where hazardous energy is properly controlled, and you are entitled to receive training that allows you to recognize and isolate energy sources safely. If you believe your employer is ignoring these safety requirements, you have the right to file a confidential complaint with OSHA. You are also protected from retaliation under Section 11(c) of the OSH Act if you report unsafe conditions or exercise your rights under the standard.

If you are injured because a machine was not properly locked out, your first priority is to seek medical attention and document the circumstances of the incident. Preserve any evidence of the equipment condition, including photos of the machine and the absence of locks or tags. You should consider requesting copies of OSHA inspection records and consulting with an attorney who understands workplace injury law to discuss your options for seeking compensation and protecting your rights.

The lockout/tagout standard is designed to prevent catastrophic injuries that occur when machines unexpectedly cycle or release stored energy. Violations of this regulation are a primary cause of severe workplace trauma, including traumatic amputations, crush injuries, fractures, and fatal electrical injuries. These incidents frequently impact the hands, upper arms, and torso, often resulting in permanent disability.