Lockout/Tagout Tags

Lockout Tagout Tags — OSHA-Compliant Energy Control Warning Tags

Lockout/tagout tags are the visual warning component of LOTO energy control procedures, providing identification and warning information that accompanies lockout devices to communicate who installed the lock, why the energy is locked out, and that removal of the LOTO device by anyone other than the authorized installer is prohibited. OSHA 29 CFR 1910.147, the Control of Hazardous Energy standard, allows tagout-only procedures in limited circumstances where it can be demonstrated that tagout provides equivalent protection to lockout. In most cases, tags are used as supplementary identification alongside lockout devices — providing the human identification and procedural documentation that physical locks alone cannot communicate.

OSHA compliant LOTO tags must meet specific construction requirements under 1910.147: they must be durable enough to withstand the environmental conditions encountered in the specific workplace, must be standardized within the facility in at least two criteria (color, shape, or size), and must be substantially unable to be inadvertently or accidentally removed — typically achieved through non-reusable means of attachment. The standard specifically requires that tags be attached by a cord or equivalent that is non-reusable, self-locking, has a minimum unlocking strength of 50 pounds, and is constructed and applied to prevent inadvertent removal. Standard cable ties or paper tags do not meet this non-reusable minimum-pull-strength requirement.

Standard LOTO tag content includes fields for: employee name (identifies who installed the lock), date installed, reason for lockout, and prohibitory language stating that the tag and associated lock may only be removed by the named employee or supervisor under the LOTO procedure. Pre-printed prohibitory language that complies with OSHA requirements is included on compliant tags — attempting to write custom language on blank tags risks missing required elements. The danger symbol and warning language must match OSHA HCS sign requirements — DANGER-level warnings for imminent hazard conditions are standard on LOTO tags because the consequences of re-energizing equipment during maintenance are potentially fatal.

Color coding of LOTO tags by department, trade, or work type allows facility managers to immediately identify which work group has established a LOTO condition from a distance, supporting the multi-lock, multi-tag group LOTO procedures required when multiple trades work on a single energy isolation point simultaneously. Common color coding schemes assign specific tag colors to electrical, mechanical, pneumatic, and hydraulic LOTO procedures, or to different maintenance departments, so that the visual management of complex multi-energy LOTO stations can be assessed without approaching the equipment. Standardized color coding schemes must be documented in the facility's written LOTO program and trained to all authorized employees.

LOTO tags with plastic-coated writing surfaces allow the employee name and date to be written with permanent marker and then wiped clean for reuse of the tag body with a new attachment cord each time. Some organizations prefer single-use tags that are destroyed upon removal rather than reusable tags, preferring the documentation trail created by the physical evidence of used tags. Either approach is compliant as long as the attachment method meets OSHA's pull-strength and non-reusable attachment requirements. Our lockout/tagout tag collection includes OSHA-compliant danger tags in multiple material formats, optional brass grommet reinforcement, and attachment cord options suitable for the full range of industrial environments.

Frequently Asked Questions

What is lockout/tagout?

Lockout/tagout is the OSHA 1910.147 method of isolating hazardous energy while equipment is serviced or maintained, preventing an unexpected start-up that could injure a worker.

Why does each worker apply their own lock?

Every authorized worker fits a personal lock and holds the sole key, so the machine remains isolated until each person has wrapped up and pulled their own lock off.

How does group lockout work?

With group lockout, a hasp or a group lock box gives every worker a place to add a personal lock, holding isolation until the entire crew has finished the job.

What is the difference between lockout and tagout?

A lock physically blocks energization, whereas a tag only warns. OSHA favors lockout and allows tag-only control only where locking is not feasible, with extra safeguards added.

Where should lockout devices be stored?

Organize the hardware at a station or board close to the work area, keeping padlocks, hasps, and tags easy to locate and fully accounted for before service starts.

What energy sources must be controlled?

Before any work begins, electrical, hydraulic, pneumatic, mechanical, thermal, and stored energy from springs, capacitors, and gravity all have to be isolated.

Who is allowed to remove a lockout device?

Removal is reserved for the worker who applied it, with one exception: a documented, supervised procedure used after that worker is confirmed off-site and unreachable.

Are lockout/tagout tags reusable?

Warning tags are generally single-use and swapped out for fresh ones each application, while padlocks, hasps, and most hardware are durable and meant to be reused.

Do I need written lockout procedures?

Yes. Machine-specific, documented energy-control procedures are required by OSHA, together with periodic inspections and properly trained authorized employees.

What do lockout/tagout tags add to the procedure?

A tag identifies who isolated the equipment and warns others not to operate it, controlling every hazardous source on the machine before service: electrical, hydraulic, pneumatic, mechanical, thermal, chemical, and stored energy.

Related Safety Gear & Guides

Standards & references
Selection guidance on this page is mapped to these primary sources:

OSHA 29 CFR 1910.147 — Control of Hazardous Energy (Lockout/Tagout)

Cited for reference only. Standards text is not a substitute for a written program, a hazard assessment, or evaluation by a qualified safety professional.

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