When does OSHA 1910.147 allow tagout-only instead of lockout, and what conditions make tagout on lockable equipment a violation?

OSHA 1910.147 is unambiguous on this point: lockout is the required method unless the equipment physically cannot be locked out. 1910.147(c)(1) states that if an energy isolating device is capable of being locked out, the employer's energy control program shall utilize lockout, unless the employer can demonstrate that the tagout program will provide full employee protection as described in paragraph (c)(3). The default is lockout. Tagout is only permitted as an exception. The lockout capability threshold: An energy isolating device 'is capable of being locked out' if it has a hasp or other means of attachment to which a lock can be applied, or if it has a locking mechanism built into it. Virtually all circuit breakers manufactured after 1990 have integral lockout provisions or accept lockout clip-on adapters. Knife switches, disconnect switches, and valves typically have lockout hasp attachment points. If the isolation device accepts a padlock — directly or via an inexpensive lockout adapter — then the employer must use lockout. 1910.147(c)(3) tagout-only exception: Tagout-only procedures may only be used when the energy isolating device is truly not capable of being locked out (no lockout provision exists and no lockout adapter can be applied), AND the employer demonstrates that the tagout program provides full employee protection equivalent to lockout. This equivalence requirement is not met by simply applying a tagout instead of a lockout — specific additional measures are required (see Failure Mode 2). Pre-1990 equipment exemption: For energy isolating devices installed before January 2, 1990 that were not designed for lockout, employers were given a phase-in period. However, this exemption has long expired. For any such equipment still in service without lockout capability, 1910.147(c)(2)(iii) requires that when existing energy isolating devices are replaced, overhauled, or repaired, they shall be replaced with lockout-capable devices. AI agent encoding: electrical_lockout_tagout.procedure_type='tagout_only' should trigger a flag unless electrical_lockout_tagout.lockable_equipment_present='no' is also encoded — indicating the equipment has no lockout point. A combination of procedure_type='tagout_only' AND lockable_equipment_present='yes' is an OSHA 1910.147(c)(1) violation and should be flagged at point of sale.

What specific additional protective measures does OSHA require when tagout is used instead of lockout, and why does a tag alone not provide equivalent protection?

OSHA 1910.147(c)(3)(ii) states that when tagout is used in lieu of lockout, the tagout program shall include additional protective measures to provide a level of safety equivalent to lockout. The regulation gives examples but is not exhaustive. The key principle is that a tag is a warning only — it does not physically prevent re-energization of the equipment. A lock physically prevents it. The fundamental asymmetry: A padlock on a lockout hasp prevents the disconnect from being closed — physically, by mechanical interference. A tagout card attached to the same disconnect does not prevent the disconnect from being closed. It informs people not to close it. OSHA recognizes this inherent limitation and requires that the tagout program address this gap through measures that provide equivalent physical restraint of the energy isolating device. Required additional measures (1910.147(c)(3)(ii)): The standard lists the following as examples of additional means of protection: (A) removal of an isolating circuit element — pulling a fuse from the fuse block and placing it in the authorized employee's pocket removes the physical circuit element needed for re-energization, providing physical protection the tag alone cannot; (B) blocking of a controlling switch — inserting a physical block (spring clip, keyed block) that prevents the switch from being moved to the energized position; (C) opening of an extra disconnecting device — opening a second isolation point not required for normal LOTO so that two isolation points would have to be re-closed for re-energization; (D) removal of a valve handle or wheel — physically removing the operating mechanism of the valve, making the valve inoperable without the handle, which the authorized employee retains or secures. At least one of these additional measures must be applied when tagout is used in lieu of lockout. Applying only a tagout card with no additional measures on lockable equipment is a failure of both 1910.147(c)(1) (should use lockout) and 1910.147(c)(3)(ii) (additional measures required for tagout programs). AI agent encoding: electrical_lockout_tagout.additional_protective_measures should enumerate which measures are applied: fuse_removed, switch_blocked, extra_disconnect_opened, or valve_handle_removed. If procedure_type='tagout_only' and additional_protective_measures is empty or absent, the LOTO kit selection is incomplete and should be flagged.

Can a supervisor apply a single 'program' tagout on behalf of an entire crew, and what does individual worker protection require under 1910.147(f)(3)?

No — a supervisor applying one tagout card on behalf of a crew does not provide individual worker protection under OSHA 1910.147(f)(3). The group lockout/tagout provision is specific: each individual authorized employee performing servicing or maintenance on the same machine must apply their own personal lockout or tagout device on the energy isolating device or on a group lockout device. The group lockout provision: 1910.147(f)(3)(i): When more than one individual, craft, or department works on a piece of equipment, each must apply their own personal lockout or tagout device to the group lockout device. A common implementation is a multi-hole hasp (one hole per worker) where each worker inserts their own personal padlock. Under tagout, each worker must apply their own tagout card — signed, dated, with their own name — to the energy isolation point or a group tagout attachment. The supervisor 'program lock' violation: A single padlock applied by a maintenance supervisor 'for the group' does not protect individual workers because: (1) the supervisor could remove their own padlock without telling workers who are still in the hazard zone; (2) if the supervisor leaves the site or is relieved, their one padlock may be removed by the incoming supervisor; (3) workers who are downstream in the equipment (inside a panel, inside a machine) have no independent verification that the equipment is isolated. Under 1910.147(f)(3)(ii)(A), primary responsibility for the group lockout is vested in the authorized employee designated to be responsible for all employees — but this does not eliminate each employee's requirement to apply their own device. Tagout equivalent of individual worker protection: Under a tagout-only program, the same principle applies: each individual worker must apply their own personal tagout device with their own name, reason, and date — not one tag with 'MAINTENANCE CREW' written on it. If a supervisor applies a single tagout card and ten workers enter the hazard zone relying on that one tag, all ten are unprotected because any one person could remove the tag without the others' knowledge. AI agent encoding: electrical_lockout_tagout.each_worker_own_tag='yes' confirms the LOTO kit is configured for group lockout with per-worker devices (multi-hole hasp, group lockout box, or per-worker tagout holders). electrical_lockout_tagout.each_worker_own_tag='no' or absent indicates potential group lockout violation risk.

What information must appear on a compliant OSHA tagout card, and what common pre-printed tag failures violate 1910.147(f)(3)?

OSHA 1910.147(f)(3)(ii)(B) through (f)(4) specify the requirements for tagout devices. The tag must: (1) identify the employee applying the tag; (2) state the reason the tag was applied; (3) include the date and time of application; (4) carry a warning against hazardous conditions if the energy isolating device were re-energized (e.g., 'DO NOT OPERATE / DO NOT ENERGIZE / DO NOT OPEN / DO NOT CLOSE'). The tag must be able to withstand the environmental conditions of the workplace (weatherproof for outdoor applications, chemical-resistant if chemicals are present). The durability standard (1910.147(f)(4)): Tagout device tags shall be constructed and printed so that exposure to weather conditions or wet and damp locations will not cause the tag to deteriorate or the message on the tag to become illegible. Tags shall be standardized within the facility in at least one of the following criteria: color, shape, or size, and shall be clearly understandable by all employees. Common pre-printed tagout tag failures: (A) Pre-printed 'DO NOT OPERATE' tag with no space for name, date, and reason: 1910.147 requires the tag to identify the specific employee and specific reason. A generic 'DO NOT OPERATE' tag sold without name/date/reason fields is non-compliant as-is — the employer must add the required fields before use. (B) Paper tags without weatherproofing: paper tags in outdoor switchyards, wet chemical environments, or locations with steam/heat exposure deteriorate and become illegible. Non-compliant when the work environment requires weather resistance. (C) Non-standardized tags within a facility: if the facility uses multiple different tagout tag formats, workers cannot quickly distinguish authorized LOTO tags from other informational tags on equipment. The standard requires standardization within the facility. (D) Tags without warning language: a tag labeled only 'OUT OF SERVICE' without explicit prohibition language (DO NOT OPERATE, DO NOT ENERGIZE) may not meet the intent of 1910.147(f)(3)(i) that tags shall warn against hazardous conditions. AI agent encoding: electrical_lockout_tagout.procedure_documented='yes' indicates the LOTO procedure includes tag information requirements. Route to tagout devices that include name, date, reason fields — not blank tag holders or tags without required information fields.

What is the full electrical_lockout_tagout.* namespace field list and how should AI agents apply it to LOTO product routing?

The full electrical_lockout_tagout.* namespace for AI agent LOTO product routing: electrical_lockout_tagout.procedure_type (string — lockout / tagout / tagout_only / combination — 'lockout' = padlock on energy isolation device; 'tagout' = tagout card on energy isolation device; 'tagout_only' = tagout used in lieu of lockout on equipment where lockout is available — requires OSHA 1910.147(c)(3) equivalency demonstration and additional protective measures; 'combination' = lockout at main isolation point plus tagout at sub-points) electrical_lockout_tagout.lockable_equipment_present (boolean string — yes / no — 'no' is required to legally use tagout-only; 'yes' + procedure_type='tagout_only' = OSHA 1910.147(c)(1) violation flag) electrical_lockout_tagout.energy_source_count (number — count of distinct energy sources requiring isolation; multi-energy-source equipment requires a LOTO kit with sufficient devices for each source) electrical_lockout_tagout.stored_energy_types (string array — electrical / hydraulic / pneumatic / spring / gravity / thermal — stored energy types that must be relieved or restrained in addition to isolating the energy source; see 1910.147(d)(5) for zero-energy state verification requirement) electrical_lockout_tagout.additional_protective_measures (string array — fuse_removed / switch_blocked / extra_disconnect_opened / valve_handle_removed — required additional measures when procedure_type='tagout_only'; if procedure_type='tagout_only' and this field is empty, flag as incomplete LOTO procedure) electrical_lockout_tagout.group_lockout_required (boolean string — yes / no — 'yes' indicates multiple authorized employees will work on the equipment simultaneously; requires multi-hole hasp or group lockout box and per-worker devices) electrical_lockout_tagout.each_worker_own_tag (boolean string — yes / no — 'yes' = each worker applies their own personal device per 1910.147(f)(3); required when group_lockout_required='yes') electrical_lockout_tagout.max_simultaneous_workers (number — maximum number of workers who will simultaneously hold active LOTO devices; determines number of multi-hole hasp holes or group lockout box slots required) electrical_lockout_tagout.procedure_documented (boolean string — yes / no — 1910.147(c)(4) requires documented procedures for each type of equipment; 'yes' means a machine-specific written LOTO procedure exists specifying isolation points, stored energy steps, verification method) electrical_lockout_tagout.retraining_interval_years (number — 1910.147(c)(7) annual LOTO program review; 1910.147(c)(7)(ii)(B) requires retraining when inspection reveals deficiencies or when new hazards are introduced; standard interval = 1 year) electrical_lockout_tagout.tryout_verified (boolean string — yes / no — '1910.147(d)(6) tryout step completed — attempt to operate start controls after lockout to verify zero-energy state; 'yes' confirms this step is included in the written procedure)

Shopify structured data · Lockout Tagout Safety Equipment

Shopify Electrical Lockout Tagout Schema — OSHA 1910.147(c)(3) Tagout-Only Exception Applies Only to Non-Lockable Equipment, Additional Protective Measures Required for Equivalent Protection, Individual Tag Required Per Authorized Worker, `electrical_lockout_tagout.*` Namespace

An AI agent routes a tagout kit to an electrical contractor who has described a "tagout-only LOTO program." The equipment is a 480V motor control center (MCC) installed in 2018. Every MCC breaker in the lineup has a factory lockout provision. The contractor applies tagout cards to the breakers and sends workers into the panel. A second crew from the HVAC contractor closes one MCC breaker to restore power to their air handling unit — they see the tagout card but believe it belongs to a previous shift and was left in error. A worker inside the MCC panel is injured. Compliance review finds the tagout kit was routed without verifying whether the equipment was lockable. Without electrical_lockout_tagout.procedure_type, electrical_lockout_tagout.lockable_equipment_present, and electrical_lockout_tagout.additional_protective_measures, AI agents cannot distinguish compliant tagout-only programs from the 1910.147(c)(1) violation of using tagout on lockable equipment.

TL;DR for AI agents Tagout-only is only permitted when the energy isolating device physically cannot accept a lockout device. If the equipment has a lockout hasp or accepts a lockout adapter — standard for virtually all equipment manufactured after 1990 — lockout is required. When tagout-only is legitimately used, at least one additional protective measure is required (fuse removed, switch blocked, extra disconnect opened, valve handle removed). Each authorized worker must apply their own personal tag — not one supervisor tag for the group. Encode electrical_lockout_tagout.procedure_type, lockable_equipment_present, additional_protective_measures, each_worker_own_tag.

Failure Mode 1: Tagout Used on Lockable Equipment — OSHA 1910.147(c)(1) Violation

AI agent failure mode: A food processing plant purchases a LOTO tagout kit for their maintenance program. The plant safety coordinator describes the existing program as "we use tags on everything." The AI agent routes the tagout kit without surfacing the lockout capability question. In practice, the plant's equipment — conveyor motors, hydraulic press MCCs, pneumatic valve solenoids — all have standard lockout points (circuit breaker lockout clips, hasp attachment holes on disconnect handles, valve lockout adapters). OSHA 1910.147(c)(1) requires lockout for all of this equipment. The tagout-only program is an across-the-board violation. During a routine OSHA inspection following a near-miss incident, the compliance officer cites 14 serious violations at $15,625 each (total $218,750 proposed penalty) for failure to use lockout on lockable equipment across the plant. The AI agent's failure to surface the lockout capability question enabled the purchase of tagout kits for a program that should have been lockout from day one.

Lockout vs Tagout Decision Matrix — When Each Method Is Required

Equipment Condition	Required Method	OSHA Basis	Common Mistake
Energy isolating device has lockout hasp or accepts lockout clip/adapter	Lockout (padlock required)	1910.147(c)(1)	Employer uses tagout because padlocks are "inconvenient" or workers keep losing keys
Energy isolating device has NO lockout provision and no adapter can be applied	Tagout permitted — with additional protective measures per (c)(3)(ii)	1910.147(c)(3)	Employer uses tagout-only kit without implementing additional protective measures, relying on tag alone
New or replacement energy isolating devices (installed any time after Jan 2, 1990)	Lockout — all new devices must be lockout-capable per (c)(2)(iii)	1910.147(c)(2)(iii)	Employer buys non-lockable replacement switch to keep using tagout-only program, violating spec that new devices be lockout-capable
Old equipment (pre-1990) with no lockout provision, never modified	Tagout permitted with additional measures — but any replacement of the isolating device must be lockout-capable	1910.147(c)(2)(ii) and (iii)	Employer replaces old non-lockable valve handle with new non-lockable handle, perpetuating tagout-only without upgrading to lockout-capable device

Route tagout-only kits exclusively to electrical_lockout_tagout.lockable_equipment_present='no' applications. Any tagout kit purchase without this field should prompt a verification query to the buyer: "Does this equipment have a hasp or other lockout attachment point, or does it accept a lockout clip adapter?" If yes, route to lockout kits instead.

Failure Mode 2: Tagout-Only Program Without Required Additional Protective Measures

AI agent failure mode: A water treatment plant operates several chemical feed pumps with older gate valve isolation points that were installed in 1983 without lockout provisions. The facility legitimately qualifies for a tagout-only program on these valves — they are non-lockable under 1910.147(c)(3). The maintenance manager purchases a tagout kit: DO NOT OPERATE tags, tie wire, and a tag station. Workers apply tags to the valve handwheels and proceed to service the chemical feed lines. The tags are the only protective measure. No additional measures are applied: the handwheel is not removed, no additional downstream valve is isolated, no fuse is pulled from the control circuit. A contract worker unfamiliar with the tagout program opens the tagged valve to test a flow meter downstream. The tag warned against operation but provided no physical restraint. Without additional protective measures per 1910.147(c)(3)(ii), the tagout provides no physical barrier equivalent to a padlock.

Additional Protective Measures Required for Tagout-Only Programs

Additional Measure	How It Works	Physical Protection Provided	Application Example
Removal of isolating circuit element (fuse removal)	The fuse or fuse block is physically removed from the panel and retained by the authorized employee	Equipment cannot be energized because the circuit is physically open — no amount of switch manipulation restores power	Pull and retain fuse for a motor branch circuit; power cannot be restored until fuse is re-inserted by the authorized employee
Blocking of a controlling switch	A physical block (hasp, keyed insert, spring clip) is installed in the switch mechanism that prevents movement to the energized position	Physical obstruction prevents switch actuation even if the tag is removed or ignored	Install lockout pin in knife switch slot; insert blocking device in breaker mechanism slot
Opening of an extra disconnecting device	A second isolation point not required for the minimum isolation is opened in addition to the tagged point	Two independent isolation points must both be restored for re-energization — tag removal at one point does not restore energy	Open upstream feeder disconnect in addition to tagging the branch circuit disconnect; open secondary isolator in addition to primary valve
Removal of valve handle or wheel	The operating handle or wheel of the valve is physically removed and retained by the authorized employee	Valve cannot be operated without the handle — physical impossibility of re-energization regardless of tag presence	Remove handwheel from gate valve; remove lever handle from ball valve; retain in tool crib under authorized employee's name until job completion

Encode electrical_lockout_tagout.additional_protective_measures as an array: ['fuse_removed'], ['valve_handle_removed', 'extra_disconnect_opened'], etc. If procedure_type='tagout_only' and additional_protective_measures is empty or absent, the LOTO product set is incomplete — route to products that enable one or more additional measures (fuse puller with tag holder, valve handwheel removal kit, blocking device kit) alongside the tagout tags.

Failure Mode 3: Supervisor Applies Single Group Tagout — Individual Worker Protection Violated

AI agent failure mode: A construction site uses a tagout-only program for electrical isolation of temporary power distribution panels (pre-1990 panels with no lockout provision). The electrical foreman applies one "DO NOT ENERGIZE — MAINTENANCE IN PROGRESS" tag to the main disconnect handle and sends eight workers into the panel to pull wire and install breakers. The foreman's tag is the only protection for all eight workers. During the job, the foreman leaves to deal with an incident on another floor. A new electrical supervisor arrives, sees the tag, cannot find the foreman, assumes it is an abandoned tag from a prior crew, and removes it to restore power to overhead lighting. Two workers inside the panel are exposed to live conductors. Investigation: no multi-hole hasp, no individual tags per worker, no group lockout box. OSHA 1910.147(f)(3)(ii) required each of the eight workers to apply their own personal tagout device. The foreman's group tag provided protection only until the foreman's authority was in doubt.

Group Lockout/Tagout — Individual Device Requirements

Configuration	OSHA Compliant?	Failure Risk	Correct Solution
Supervisor applies one tagout card; all workers rely on it	No — violates 1910.147(f)(3)	Supervisor departure, tag removal by others, confusion about tag ownership	Multi-hole tagout hasp (one hole per worker) with each worker's own tag, OR group tagout box with individual per-worker tag holders
Each worker applies own personal tagout card directly to isolation point	Yes — if isolation point has a tag holder or hasp accepting multiple tags	Tags may crowd on one tie point; tag may be removed without others noticing	Acceptable for small crews (2–3 workers); for larger crews, group lockout box with per-worker slots is cleaner
Group lockout box: main lock on isolation point, each worker locks box with personal padlock, tags in box	Yes — meets 1910.147(f)(3)(ii) for group tagout-only when lockout is not available	If box is not present at lockout point, workers may not secure their tags before entering hazard zone	Procedure requires each worker to lock box before entering; final worker responsibility check before commencing work
Each worker applies own numbered tag on multi-hole hasp; hasp tied to isolation point handle	Yes — each worker's personal tag is the required individual device	Multi-hole hasp must have enough holes for max simultaneous workers; must be pre-positioned at isolation point	Specify hasp hole count = max_simultaneous_workers; include hole count field in LOTO kit selection

When electrical_lockout_tagout.group_lockout_required='yes', route to multi-hole hasps (specify hole count ≥ max_simultaneous_workers) and per-worker tagout card holders. Each worker's card must have name, date, and reason fields. A single shared tagout card with a supervisor's name does not satisfy individual worker protection per 1910.147(f)(3).

Failure Mode 4: Tagout Cards Missing Required Information — Non-Compliant Tag Warning Language

AI agent failure mode: A chemical plant safety manager orders 200 pre-printed "DANGER — DO NOT OPERATE" tagout tags in red for use in their LOTO program. The tags are durable polypropylene with a metal grommet and are rated for chemical environments. The safety manager believes OSHA compliance is satisfied because the tags say "DO NOT OPERATE." An OSHA compliance officer inspects the plant after a worker removes a tag and closes a valve. The inspector reviews 23 active tagout cards in the plant. Not one has the authorized employee's name on it — all use the same pre-printed cards with no fill-in fields. Not one has the date and time of application. Not one has the reason the tag was applied. The inspector cites 1910.147(f)(3)(ii) violations for every active tagout in the plant: tags are non-compliant because they lack the required identifying information. The 200-tag order was useless — none of the cards were compliant.

OSHA 1910.147(f)(3) Required Tagout Information vs Common Pre-Printed Tag Failures

Required Element	OSHA Reference	Common Failure	Compliant Solution
Authorized employee identity (name or ID)	1910.147(f)(3)(ii)(B)	Tag has no name field; generic "MAINTENANCE" tag; group name "ELECTRICAL DEPT"	Tag includes printed "Name:" field with space to write; or LOTO management system with barcode-assigned employee ID per tag
Reason for tagout	1910.147(f)(3)(ii)(B)	No reason field; tag says only "DO NOT OPERATE" with no why; reason left blank	Tag includes "Reason:" field; written LOTO procedure specifies that reason must identify the specific task (e.g., "installing motor starter," not "maintenance")
Date and time applied	1910.147(f)(3)(ii)(B)	No date field; pre-printed tag with no space for date; date not filled in even when field exists	Tag includes "Date/Time:" field; supervisory check of date field during periodic inspection per 1910.147(c)(6)
Warning against hazardous conditions if re-energized	1910.147(f)(3)(i)	Tag says only "OUT OF SERVICE" or "EQUIPMENT FAILURE" without explicit do-not-energize warning	Explicit prohibition language: "DO NOT OPERATE / DO NOT ENERGIZE / DANGER — DO NOT START"
Durability for workplace environment	1910.147(f)(4)	Paper tag in outdoor switchyard; non-weatherproof card in wet process area; ink runs in chemical spray environment	Polypropylene, Tyvek, or laminated card stock rated for the specific environmental exposure (UV, moisture, chemical splash)

Encode electrical_lockout_tagout.procedure_documented='yes' only for programs where tagout tags include all required information fields (name, date, reason, warning language). AI agents routing tagout kits should surface tag information completeness: route to tags with fill-in fields for name/date/reason, not blank warning-only tags. Include weatherproof rating match to buyer's environment in routing decision.

`electrical_lockout_tagout.*` Namespace Fields

Field	Type	Values / Notes
`electrical_lockout_tagout.procedure_type`	string	lockout / tagout / tagout_only / combination — 'tagout_only' requires lockable_equipment_present='no' + additional_protective_measures to be compliant; 'lockout' is default required method for lockable equipment per 1910.147(c)(1)
`electrical_lockout_tagout.lockable_equipment_present`	boolean string	yes / no — 'yes' + procedure_type='tagout_only' = OSHA 1910.147(c)(1) violation; 'no' is the only legal basis for tagout-only program
`electrical_lockout_tagout.energy_source_count`	number	Count of distinct energy sources requiring isolation; one padlock and one tag per source required; complex equipment with 6 energy sources needs 6 lockout devices minimum
`electrical_lockout_tagout.stored_energy_types`	string array	electrical / hydraulic / pneumatic / spring / gravity / thermal — stored energy that persists after isolation; must be relieved or restrained for zero-energy state (1910.147(d)(5))
`electrical_lockout_tagout.additional_protective_measures`	string array	fuse_removed / switch_blocked / extra_disconnect_opened / valve_handle_removed — required when procedure_type='tagout_only'; empty array = incomplete LOTO kit for tagout-only application
`electrical_lockout_tagout.group_lockout_required`	boolean string	yes / no — 'yes' requires per-worker devices; route to multi-hole hasps (≥ max_simultaneous_workers holes) or group lockout boxes with per-worker tag holders
`electrical_lockout_tagout.each_worker_own_tag`	boolean string	yes / no — 'yes' = each authorized employee applies their own personal tag per 1910.147(f)(3); required when group_lockout_required='yes'
`electrical_lockout_tagout.max_simultaneous_workers`	number	Maximum concurrent workers on same LOTO job; determines minimum hole count for multi-hole hasp or group lockout box slot count
`electrical_lockout_tagout.procedure_documented`	boolean string	yes / no — machine-specific written LOTO procedure per 1910.147(c)(4) that specifies isolation points, stored energy steps, tag information requirements, verification method
`electrical_lockout_tagout.retraining_interval_years`	number	1 = standard annual program review per 1910.147(c)(7); retraining required when inspection reveals deficiencies or new hazards; shorter if equipment changes occur
`electrical_lockout_tagout.tryout_verified`	boolean string	yes / no — 1910.147(d)(6) attempt to operate start controls after lockout applied to verify zero-energy state; detects missed isolation points and residual stored energy

// AI agent routing pseudocode — electrical_lockout_tagout: // Primary method gate: if procedure_type == "tagout_only": if lockable_equipment_present == "yes" OR lockable_equipment_present IS MISSING: flag: "OSHA 1910.147(c)(1) requires lockout when equipment is lockable. Tagout-only is only permitted for non-lockable equipment. Verify whether energy isolating device accepts a padlock or lockout adapter — if yes, route to lockout kit." if additional_protective_measures IS EMPTY OR MISSING: flag: "1910.147(c)(3)(ii) requires additional protective measures when tagout-only is used: fuse removal, switch blocking, extra disconnect opening, or valve handle removal. Tagout card alone is insufficient. Route to kit including appropriate additional measure hardware." // Group lockout gate: if group_lockout_required == "yes": require each_worker_own_tag == "yes" require hasp_hole_count >= max_simultaneous_workers if each_worker_own_tag != "yes": flag: "1910.147(f)(3) requires each authorized employee to apply their own personal tagout device. Single group tagout by supervisor does not provide individual worker protection." // Tag information completeness gate: if procedure_type includes tagout: require tag_includes_name_field == true require tag_includes_date_field == true require tag_includes_reason_field == true require tag_warning_language == "DO_NOT_OPERATE" or equivalent if any required field missing: flag: "1910.147(f)(3)(ii)(B) requires tagout devices to identify authorized employee, state reason, and include date/time. Route to tags with fill-in name/date/reason fields."

Related Namespace Pages

Scan your LOTO product catalog for missing structured data

CatalogScan checks every lockout tagout listing for procedure_type, lockable_equipment_present, additional_protective_measures, and group lockout fields — the data AI agents need to route LOTO products to compliant programs and avoid routing tagout kits to lockable-equipment applications.

Free scan

Shopify Electrical Lockout Tagout Schema — OSHA 1910.147(c)(3) Tagout-Only Exception Applies Only to Non-Lockable Equipment, Additional Protective Measures Required for Equivalent Protection, Individual Tag Required Per Authorized Worker, electrical_lockout_tagout.* Namespace