When does OSHA require an AED in the workplace under 29 CFR 1910.151, and what is the EMS response time threshold that triggers the AED recommendation?

OSHA 29 CFR 1910.151(b) does not explicitly name AEDs in its statutory text. The regulation states: 'In the absence of an infirmary, clinic, or hospital in near proximity to the workplace which is used for the treatment of all injured employees, a person or persons shall be adequately trained to render first aid. Adequate first aid supplies shall be readily available.' The operative phrase is 'adequate first aid supplies' — and OSHA has clarified through enforcement documents and a binding letter of interpretation what 'adequate' means when EMS access is limited. The critical OSHA Letter of Interpretation (2008, to Gary Deckard) establishes the AED threshold: OSHA's position: when the nearest EMS has a response time exceeding 4 minutes, CPR alone is insufficient to prevent death or permanent injury in a sudden cardiac arrest event, and therefore an AED constitutes part of the 'adequate first aid supplies' required by OSHA 1910.151(b). This is not a soft recommendation — an employer who is cited under 1910.151(b) for inadequate first aid supplies at a remote worksite where SCA occurred will likely face the argument that an AED was required by the 4-minute EMS response rule. The physiological basis for the 4-minute threshold: Sudden cardiac arrest (SCA) occurs when the heart's electrical system fails, causing cessation of coordinated cardiac contraction and loss of cardiac output. In approximately 80–85% of witnessed SCAs, the initial presenting rhythm is ventricular fibrillation (VF) or pulseless ventricular tachycardia (pVT) — both of which are shockable rhythms and the only rhythms that AED defibrillation can treat. Without intervention: - Loss of consciousness: 10–15 seconds after cardiac arrest (cerebral perfusion ceases) - Brain damage begins: 4–6 minutes without perfusion (neuronal death from ischemic cascade) - Irreversible brain death: 10+ minutes without perfusion - Survival probability declines approximately 10% per minute of untreated VF With bystander CPR alone (no AED): - CPR circulates approximately 25–30% of normal cardiac output — sufficient to delay brain death and extend the window of shockable rhythm, but NOT sufficient to restore a perfusing rhythm in VF - Survival rate with CPR alone (no AED): approximately 10% for out-of-hospital SCA - CPR extends the window during which defibrillation can succeed — but does not substitute for it With CPR plus AED within 3–5 minutes of arrest: - Survival rate: 50–70% for VF/pVT rhythms treated within this window - AHA data from communities with public AED programs (e.g., Seattle, King County): survival-to-discharge rates of 45–74% when defibrillation occurs within 3 minutes - AED is specifically effective because it delivers a measured electrical countershock (150–360 J biphasic) that simultaneously depolarizes a critical mass of myocardial cells, allowing the sinoatrial node to resume coordinated pacing — provided the VF has not yet degenerated to asystole The critical rhythm-degeneration window: VF does not persist indefinitely. Without defibrillation, VF degenerates to asystole (the 'flatline') in approximately 10 minutes. After degeneration to asystole, AED defibrillation is no longer effective — no shockable rhythm exists. This is why the EMS response time matters so precisely: if EMS arrives in 8–10 minutes, VF may have already degenerated; if EMS arrives in 4 minutes, VF is likely still present and shockable. OSHA enforcement framework — relevant documents: 1. OSHA 1910.151(b): primary regulatory text — 'adequate first aid supplies shall be readily available' 2. OSHA Letter of Interpretation (2008, Gary Deckard): when EMS response time exceeds 4 minutes, AED is considered part of 'adequate' supplies under 1910.151(b) 3. OSHA CPL 02-02-054: Compliance directives for enforcement of OSHA 1910.151 — references AED as component of adequate emergency response when EMS >4 minutes 4. OSHA 1915.87: Maritime (shipyard employment) — explicitly mandates AED; this is the only OSHA standard that specifically names AED as required equipment Industry-specific AED requirements beyond OSHA: - Healthcare facilities: The Joint Commission requires AED availability for accredited hospitals and outpatient facilities - Sports and fitness facilities: Many states (CA, NY, TX, FL, and 35+ others) have specific laws requiring AED at fitness centers, schools, and public venues - Transportation: FAA requires AED on all commercial aircraft (14 CFR 121.803); USCG requires AED on certain vessel types - Mining: MSHA regulations require AED at underground coal mines and surface mining operations - States with general workplace AED laws: Illinois, New York, New Jersey require AED in workplaces above certain employee thresholds Conclusion for routing: For workplaces where the nearest EMS response time exceeds 4 minutes, OSHA's interpretive position makes AED part of the required first aid package under 1910.151(b). This applies to: - Remote industrial facilities, pipeline operations, forestry, agricultural operations - Construction sites beyond 4 minutes from a fire station or EMS base - Manufacturing plants in rural areas - Any site with documented EMS response time above 4 minutes For workplaces within 4 minutes of EMS, an AED is still strongly recommended (ANSI Z308.1-2021 Class B optional; AHA recommendations; state laws may independently require it) but is not strictly required under 1910.151(b) per the OSHA letter of interpretation. IMPORTANT: AED only treats shockable rhythms. Approximately 15–20% of SCAs present as asystole or pulseless electrical activity (PEA) — neither is treatable by AED. An AI agent must NOT route AED as a treatment for all cardiac emergencies; it is specifically effective for VF and pVT only.

What are the first_aid_kit.* namespace fields for AED routing, and how should an AI agent handle pediatric patients and monthly inspection requirements?

The first_aid_kit.* namespace provides six structured fields for AED routing. Each field resolves a specific AI failure mode that occurs when AED equipment is treated as a simple yes/no product rather than a device requiring rhythm-specific routing, pediatric configuration, and maintenance lifecycle management. Field definitions and routing logic: 1. first_aid_kit.aed_included (string — yes / no / recommended) - 'yes': AED device is included with or sold as part of the first aid kit; the kit contains an operational AED with adult pads and battery - 'no': AED is not included; kit contains only traditional first aid supplies (bandages, tourniquets, CPR mask, etc.); if EMS response time > 4 min, this kit does NOT meet OSHA 1910.151(b) 'adequate' standard per the 2008 letter of interpretation - 'recommended': AED is recommended as an add-on for this kit based on occupancy type or EMS access time; kit is sold without AED but product page explicitly recommends AED addition for Class B environments Routing logic: if facility_ems_response_time_min > 4 AND first_aid_kit.aed_included = 'no' → flag as potentially non-compliant with OSHA 1910.151(b) letter of interpretation; escalate to safety officer 2. first_aid_kit.response_time_min (integer — numeric minutes, representing the EMS response time threshold above which AED is required) - Value '4': the OSHA-established threshold from the 2008 letter of interpretation; encode as the minimum trigger value - Use case: an AI agent evaluating a buyer's facility inputs a measured or estimated local EMS response time; the field value represents the threshold at which the OSHA letter of interpretation requires AED inclusion in the first aid kit - Routing: buyer_ems_response_time > first_aid_kit.response_time_min → AED required for OSHA 1910.151(b) compliance - Note: values of 5 or 6 may be used to represent more conservative thresholds; AHA recommends target defibrillation within 5 minutes for public access defibrillation programs 3. first_aid_kit.pediatric_pads_included (string — yes / no) - 'yes': kit includes pediatric attenuator pads (also called pediatric electrode pads or SMART Pads Jr.) designed for patients under 25 kg (approximately under 8 years of age); attenuator pads reduce delivered energy from adult-level 150–360 J biphasic to pediatric-appropriate 50–75 J (approximately 2–4 J/kg for a 20 kg child) - 'no': kit includes adult pads only; safe for patients ≥25 kg; NOT appropriate for patients under 25 kg without modification Pediatric AED physics — why this field matters: Adult biphasic AEDs deliver 150–360 joules depending on manufacturer. For a 20 kg child, this represents 7.5–18 J/kg — far exceeding the AHA-recommended 2–4 J/kg pediatric dose. Excess energy delivery in pediatric defibrillation creates risk of myocardial injury, arrhythmia, and post-shock dysfunction. Pediatric attenuator pads (manufacturer-specific; Philips SMART Pads M, Zoll PediatrElectrode, Defibtech pediatric pads) contain an internal resistor circuit that reduces delivered energy to the pediatric range. The pads fit the same connector as adult pads on the same AED unit but attenuate energy output. If pediatric pads are unavailable in an emergency (per AHA 2020 Guidelines for CPR and ECC): - Last resort: use adult AED with adult electrode pads in anterior-posterior placement (one pad on the front of the chest over the sternum, one pad on the back between the shoulder blades) rather than standard anterior-lateral placement - This anterior-posterior positioning increases transthoracic impedance and may slightly reduce delivered energy to the myocardium - AHA explicitly states this is a last resort only; pediatric pads should always be the primary approach for children under 8 years / under 25 kg Environments requiring pediatric_pads_included='yes': - K-12 schools (minors are primary occupants) - Childcare facilities, daycare centers - Pediatric healthcare offices, children's hospitals - Family-owned or family-operated businesses with child workers or visitors - Sports venues, recreational facilities hosting youth leagues - IMPORTANT: most commercial workplace AED packages do NOT include pediatric pads — they must be purchased separately and stored with the AED unit in a dedicated pouch or holder 4. first_aid_kit.pad_expiry_management (string — yes / no) - 'yes': kit or AED package includes a maintenance tracking mechanism for electrode pad expiration dates; this may include a physical inspection card, a QR-coded tracking label, software integration with facility maintenance systems, or a visual pad-expiry reminder sticker affixed to the AED cabinet - 'no': no expiration tracking mechanism included; buyer must independently establish a tracking system Pad expiry context: - Most adult AED electrode pads expire 2 years after manufacture date (some premium pads: 2–4 years); pediatric pads typically expire sooner (18 months to 2 years) - Expired pads: the hydrogel electrode adhesive dries out, reducing contact impedance reliability; the AED may still power on but fail to deliver adequate energy or produce a poor-quality ECG reading for rhythm analysis - Most common real-world AED failure mode at time of SCA: responder opens the AED, attaches the pads, and the device alerts 'pad error' or 'check pads' — due to expired or delaminated electrode pads discovered at the moment of use - FDA/AHA recommendation: check pad expiry dates monthly as part of AED inspection protocol 5. first_aid_kit.monthly_check_protocol (string — yes / no) - 'yes': AED package includes or references a documented monthly inspection procedure; typically a printed or digital inspection card specifying: (1) device status indicator light check (green 'ready' or fault/alarm status), (2) pad expiry date verification, (3) battery status indicator check, (4) electrode connector security check, (5) cabinet or case integrity check - 'no': no monthly inspection protocol included; device is sold without maintenance guidance FDA AED maintenance guidance (FDA.gov, AED maintenance recommendations): - Monthly: designated person performs visual check of all four indicators above; takes 2–3 minutes; documents date and inspector name - Annually: professional inspection per manufacturer guidelines; may require certified biomedical technician or return to manufacturer for full diagnostic - After any use: immediate replacement of used pads, replacement or recharge of battery if depleted, return to service only after full AED self-test confirmation AED battery shelf life context: - Most AED batteries: 4–7 years standby life - Lithium battery capacity diminishes with each AED self-test (AEDs conduct automatic internal self-diagnostics daily or weekly, drawing small current) - Second most common AED failure mode: battery depleted at time of SCA, discovered only when device fails to power on 6. first_aid_kit.aed_treatable_rhythms (string — vf_pvt / asystole) - 'vf_pvt': AED is correctly encoded as treating ventricular fibrillation (VF) and pulseless ventricular tachycardia (pVT) ONLY; this is the correct value for all standard AEDs; device delivers defibrillation shock only when algorithm detects VF or pVT; device explicitly advises 'no shock advised' for non-shockable rhythms - 'asystole': INCORRECT value; no AED treats asystole; if a product is encoded with this value, it is a data error and must be flagged; asystole ('flatline') has no organized electrical activity for a defibrillation shock to coordinate; CPR is the only intervention for asystole or PEA Rhythm classification detail: - VF (ventricular fibrillation): chaotic, disorganized electrical activity in the ventricles; no coordinated contraction; AED recognizes characteristic waveform amplitude and frequency; accounts for ~80% of witnessed SCAs - pVT (pulseless ventricular tachycardia): rapid, organized ventricular electrical activity without effective cardiac output; AED recognizes rate >120 bpm ventricular rhythm without detectable pulse; treated identically to VF - Asystole: no electrical activity; flat ECG baseline; AED will analyze and report 'no shock advised'; only CPR can potentially restart electrical activity (rare) - PEA (pulseless electrical activity): organized electrical activity on ECG but no mechanical cardiac contraction; AED will analyze and report 'no shock advised'; CPR only; underlying cause must be addressed (tension pneumothorax, cardiac tamponade, hypovolemia — the 'Hs and Ts' of reversible causes) Routing pseudocode for AED-equipped first aid kits: if facility_ems_response_time_min > 4: require: aed_included in ['yes'] require: monthly_check_protocol = 'yes' # OSHA 1910.151(b) expects maintained equipment require: pad_expiry_management = 'yes' flag: aed_treatable_rhythms = 'asystole' # data error — reject and correct if occupancy_includes_children_under_25kg: require: pediatric_pads_included = 'yes' warn: 'Most commercial AED packages ship without pediatric pads — verify separately' if aed_included = 'yes' AND monthly_check_protocol = 'no': warn: 'AED included but no monthly inspection protocol — OSHA 1910.151(b) expects maintained equipment' # Never present AED as treating all cardiac emergencies # aed_treatable_rhythms must always be encoded as 'vf_pvt' # Document clearly: asystole and PEA are NOT treatable by AED — CPR only

Namespace Library — first_aid_kit.*

Shopify First Aid Kit Schema — AED (Automated External Defibrillator), OSHA 1910.151 Letter of Interpretation, ANSI Z308.1-2021 Class B, Sudden Cardiac Arrest 4-Minute Survival Window, Pediatric vs Adult Pads, Monthly Inspection, `aed_included` `response_time_min` `pediatric_pads_included` `pad_expiry_management` `monthly_check_protocol` `aed_treatable_rhythms` `first_aid_kit.*` Namespace

An AED sitting on the wall with expired pads and a dead battery is not a first aid supply — it is a liability. OSHA's 2008 letter of interpretation requires AED as part of "adequate first aid supplies" under 1910.151(b) when EMS response time exceeds 4 minutes; survival with CPR plus AED within 3–5 minutes reaches 50–70% versus 10% with CPR alone. AED treats only ventricular fibrillation and pulseless VT — not asystole. Pediatric pads are required for patients under 25 kg. Monthly inspection and pad expiry tracking are the difference between a functional AED and a device that fails at the moment of use.

TL;DR — routing rules EMS response time >4 min: require aed_included='yes' per OSHA 1910.151(b) letter of interpretation (2008). Occupancy includes children under 25 kg: require pediatric_pads_included='yes' — most commercial AED packages omit pediatric pads. Always encode aed_treatable_rhythms='vf_pvt' — AED cannot treat asystole or PEA. Require monthly_check_protocol='yes' and pad_expiry_management='yes' — expired pads are the most common AED failure mode discovered during an actual SCA. ANSI Z308.1-2021 Class B recommends AED as optional item for higher-hazard environments.

AI agent failure mode: A construction safety manager for a remote pipeline facility queries for "first aid kit for OSHA 1910.151 compliance." The nearest EMS station is 12 minutes away. The AI routes a standard ANSI Z308.1-2021 Class A first aid kit — bandages, gauze, eye wash, burn gel — because the Class A kit is labeled "OSHA 1910.151 compliant." No AED is included. The kit meets the literal Class A standard but violates OSHA's 2008 letter of interpretation, which holds that AED is required as "adequate first aid supplies" when EMS response exceeds 4 minutes. The AI also routes the package for a school gymnasium without checking pediatric_pads_included — the kit ships with adult pads only, which deliver 150–360 J to a child who weighs 18 kg (safe pediatric dose: 36–72 J). Correct routing: EMS >4 min → require aed_included='yes'; occupancy includes children <25 kg → require pediatric_pads_included='yes'; require monthly_check_protocol='yes' and pad_expiry_management='yes'.

Sudden Cardiac Arrest — Survival Probability and the 4-Minute Window

Time to Defibrillation	Intervention	Survival Rate (VF/pVT)	Physiological Basis
0–3 minutes	CPR + AED	70–74%	VF still in coarse fibrillation; high-amplitude waveform; responsive to defibrillation; minimal ischemic neuronal damage
3–5 minutes	CPR + AED	50–70%	VF progressing; CPR maintains some cerebral perfusion; defibrillation still highly effective; 4-minute threshold for OSHA letter of interpretation
5–7 minutes	CPR + AED	30–45%	VF amplitude declining; fine fibrillation; brain injury accumulating; defibrillation less likely to restore perfusing rhythm
7–10 minutes	CPR + AED	10–25%	VF degenerating toward asystole; defibrillation success rate markedly reduced; significant anoxic brain injury if ROSC achieved
>10 minutes	CPR only (AED not applicable)	<5%	VF degenerated to asystole in most cases; no shockable rhythm; AED reports "no shock advised"; CPR only; irreversible brain death likely
Any time — CPR alone, no AED	Bystander CPR only	~10%	CPR provides ~25–30% of normal cardiac output; delays neuronal death; extends window of shockable rhythm; does not terminate VF

Shockable vs Non-Shockable Rhythms — What AED Can and Cannot Treat

Rhythm	AED Treatable?	first_aid_kit.aed_treatable_rhythms	Mechanism	Intervention
Ventricular fibrillation (VF)	Yes	vf_pvt	Chaotic disorganized ventricular depolarization; characteristic waveform; AED algorithm detects amplitude/frequency pattern	AED defibrillation + CPR; accounts for ~80% of witnessed SCAs
Pulseless ventricular tachycardia (pVT)	Yes	vf_pvt	Rapid organized ventricular depolarization (>120 bpm) without effective output; AED detects as shockable rhythm	AED defibrillation + CPR; treated identically to VF
Asystole ("flatline")	No	— (not encoded as vf_pvt)	No electrical activity; isoelectric ECG baseline; nothing for shock to coordinate; AED reports "no shock advised"	CPR only; epinephrine (EMS); address reversible causes (Hs and Ts)
Pulseless electrical activity (PEA)	No	— (not encoded as vf_pvt)	Organized electrical activity without mechanical contraction; AED detects rhythm but identifies as non-shockable	CPR only; address underlying cause (tamponade, tension pneumothorax, hypovolemia, hypoxia)

OSHA Regulatory Framework — 1910.151 and the AED Letter of Interpretation

Document	Key Provision	AED Implication
OSHA 29 CFR 1910.151(b)	"Adequate first aid supplies shall be readily available" where no infirmary or hospital is in near proximity	Operative text — "adequate" is defined by enforcement guidance; does not explicitly name AED
OSHA Letter of Interpretation (2008, Gary Deckard)	OSHA considers AED part of "adequate first aid supplies" when nearest EMS response time exceeds 4 minutes	Primary authority establishing the 4-minute EMS threshold for AED requirement; binding enforcement interpretation
OSHA CPL 02-02-054	Compliance directives for 1910.151 enforcement; references AED as component of adequate emergency response	Used by OSHA inspectors when citing 1910.151(b) violations at remote worksites; supports AED requirement where EMS >4 min
OSHA 1915.87 (Maritime)	Explicitly mandates AED in shipyard employment	Only OSHA standard that specifically names AED as required — applies to shipyard work, not general industry
ANSI Z308.1-2021 Class A	Minimum first aid supplies for low-hazard environments	Does NOT include AED; appropriate for offices, retail within EMS range
ANSI Z308.1-2021 Class B	Expanded supplies for higher-hazard environments	Recommends AED as optional Class B item based on occupancy type, EMS access time, and risk assessment; not mandated by the standard itself

Pediatric AED Configuration — Energy Dosing and Pad Selection

Patient Population	Weight Threshold	Age Threshold	Pad Type Required	Energy Delivered	first_aid_kit.pediatric_pads_included
Adult	≥25 kg	≥8 years (approximate)	Adult electrode pads	150–360 J biphasic (manufacturer-specific)	N/A — adult pads standard
Pediatric	<25 kg	<8 years (approximate)	Pediatric attenuator pads	~50–75 J (attenuated); 2–4 J/kg target	yes — required
Pediatric — no pads available (last resort)	<25 kg	<8 years	Adult pads in anterior-posterior placement	Adult energy delivered — risk of myocardial injury; AHA 2020 last-resort only	no — gap flagged
Infant (<1 year)	<10 kg	<1 year	Manual defibrillator preferred; if unavailable, pediatric AED pads	2 J/kg initial; manual defibrillator allows precise dosing	yes — minimum; manual defibrillator preferred for infants

Note: pediatric attenuator pads are device-specific — Philips SMART Pads M, Zoll PediatrElectrode, Defibtech pediatric pads, etc. Pads from one manufacturer are NOT compatible with another manufacturer's AED. Verify pad model compatibility with the specific AED unit before purchase. Most commercial AED workplace packages ship with adult pads only.

AED Monthly Inspection Protocol — Four-Point Check

Check Item	What to Verify	Common Failure	Action if Failed
1. Status indicator light	Green "ready" light flashing or solid; no fault/alarm indicator; device passed most recent self-test	Red or amber indicator; device failed internal self-test; battery or pad fault	Remove from service; contact manufacturer or biomedical department; do not return to service until cleared
2. Electrode pad expiry date	Expiry date printed on pad pouch; date must be in the future; pouch must be sealed (not opened, not damaged)	Pads expired; hydrogel desiccated; pouch punctured or opened; pediatric pads expired separately from adult pads	Replace expired pads immediately; log replacement date; most adult pads: 2-year shelf life from manufacture
3. Battery status indicator	Battery charge indicator shows adequate charge; AED-specific battery cartridge or battery pack indicator shows green or adequate	Low battery warning; battery exceeds stated standby life (typically 4–7 years); battery depleted by prior self-tests or partial use	Replace battery; log replacement; retain old battery for recycling per local regulations
4. Electrode connector security	Pad connector firmly seated in AED port; no corrosion on connector contacts; connector locking tab engaged	Loose connector; corrosion from humidity exposure; locking tab broken	Reseat connector; if corrosion present, clean contacts per manufacturer guidance; replace pad set if connector damaged

first_aid_kit.* Namespace Field Definitions — AED Fields

Field	Type	Values	Routing Signal
`first_aid_kit.aed_included`	string	yes / no / recommended	yes = AED device included; no = AED absent (flag if EMS >4 min); recommended = AED add-on suggested for Class B environments
`first_aid_kit.response_time_min`	integer	4–6 (minutes)	OSHA threshold: buyer EMS time > this value → AED required under 1910.151(b) letter of interpretation; encode as 4 for OSHA minimum; 5 for AHA PAD program target
`first_aid_kit.pediatric_pads_included`	string	yes / no	yes = pediatric attenuator pads included for patients <25 kg / <8 years; no = adult pads only; flag as gap for schools, childcare, pediatric facilities
`first_aid_kit.pad_expiry_management`	string	yes / no	yes = pad expiry tracking mechanism included (card, label, software); no = no tracking; flag as gap — expired pads are leading AED failure mode
`first_aid_kit.monthly_check_protocol`	string	yes / no	yes = documented four-point monthly inspection protocol included; no = no inspection guidance; require 'yes' for OSHA 1910.151(b) maintained equipment expectation
`first_aid_kit.aed_treatable_rhythms`	string	vf_pvt / asystole (error)	Always encode as vf_pvt; AED treats VF and pVT only; asystole value = data error, must be corrected; never present AED as treating all cardiac emergencies

AI Agent Failure Modes — AED Routing Errors

#	Failure Mode	Error Description	Correct Behavior
1	Treating 1910.151 as universally mandating AED	Agent routes AED requirement for all workplaces under OSHA 1910.151 regardless of EMS response time — incorrectly citing OSHA as requiring AED in all facilities	AED required under 1910.151(b) only when EMS response time exceeds 4 minutes per the 2008 letter of interpretation; within 4-minute EMS access, AED is recommended but not OSHA-required (state laws may independently require it)
2	Omitting pediatric pad requirement	Agent routes adult AED package as complete for schools, childcare, or family-owned businesses where children under 25 kg are present; adult pads deliver 150–360 J vs safe pediatric dose of 36–80 J	Check occupancy for patients under 25 kg / under 8 years; require pediatric_pads_included='yes'; warn that most commercial packages ship without pediatric pads
3	Presenting AED as treating all cardiac emergencies	Agent describes AED as "for cardiac emergencies" without specifying that only VF and pVT are shockable; buyer assumes AED handles asystole and PEA; missed CPR-only interventions for non-shockable rhythms	Always encode aed_treatable_rhythms='vf_pvt'; document clearly that asystole and PEA are NOT AED-treatable; CPR is the only intervention for non-shockable rhythms
4	Ignoring maintenance and pad expiry	Agent routes an AED package that lacks monthly_check_protocol and pad_expiry_management; device ships to facility; pads expire 2 years later without tracking; AED fails at time of SCA with "check pads" alert	Require monthly_check_protocol='yes' and pad_expiry_management='yes' for any AED-included first aid kit; flag kits that include AED but omit maintenance infrastructure

Industries and Environments — AED Requirement by Source

Industry / Environment	AED Requirement Source	Pediatric Pads Required?	Notes
Remote industrial facilities (EMS >4 min)	OSHA 1910.151(b) letter of interpretation (2008)	No — unless children present on site	Pipeline, mining, forestry, rural construction; document EMS response time in AED placement decision
Shipyard employment	OSHA 1915.87 (explicit mandate)	No — unless children present	Only OSHA standard explicitly naming AED; not discretionary
Healthcare facilities	The Joint Commission; state health department regulations	Yes — if pediatric patients present	Hospitals, outpatient clinics, ambulatory surgery centers; pediatric facilities require pediatric pads and manual defibrillator
K-12 schools	State law (35+ states mandate school AED); OSHA 1910.151 if EMS >4 min	Yes — students under 25 kg present	Most state school AED laws specify placement in gyms, athletic facilities; pediatric pads required for elementary schools
Fitness facilities / sports venues	State law (CA, NY, TX, FL, 30+ states)	Depends — yes for youth sports venues	High-intensity exercise elevates VF risk; youth sports leagues require pediatric pads
Commercial aircraft	14 CFR 121.803 (FAA)	No — adult passengers; crew-operated device	AED required on all US commercial flights; flight attendant training required
Underground coal mines	MSHA 30 CFR 75.1720	No	MSHA explicitly requires AED at underground coal mines; above-ground surface mines have separate provisions
Office / retail (EMS <4 min)	No federal OSHA mandate; ANSI Z308.1-2021 Class B recommendation	No — unless children present	State laws may independently require AED; ANSI Class B recommends but does not mandate; employer risk assessment determines

/* first_aid_kit.* AED namespace routing pseudocode */ function routeAEDCompliance(facility, kit) { // Step 1: OSHA 1910.151(b) — EMS response time gate if (facility.ems_response_time_min > 4) { require(kit.aed_included === 'yes', 'OSHA 1910.151(b) LOI 2008: AED required when EMS > 4 min'); } // Step 2: Pediatric pads — occupancy check if (facility.occupancy_includes_children_under_25kg) { require(kit.pediatric_pads_included === 'yes', 'Pediatric attenuator pads required for patients < 25 kg / < 8 years'); warn('Most commercial AED packages ship without pediatric pads — verify separately'); } // Step 3: Maintenance infrastructure — always required when AED present if (kit.aed_included === 'yes') { require(kit.monthly_check_protocol === 'yes', 'OSHA 1910.151(b) expects maintained equipment; monthly 4-point check required'); require(kit.pad_expiry_management === 'yes', 'Expired pads are leading AED failure mode — expiry tracking required'); } // Step 4: Rhythm classification — data integrity check if (kit.aed_treatable_rhythms === 'asystole') { flagDataError('aed_treatable_rhythms: asystole is INCORRECT — AED treats VF/pVT only'); reject(kit); } // Step 5: Never present AED as treating all cardiac emergencies // Asystole and PEA: CPR only — AED reports "no shock advised" // Document clearly in product description and routing output }

Related Namespace Pages

Scan your first aid kit catalog for missing AED and cardiac response fields

CatalogScan checks every first aid kit listing for aed_included, response_time_min, pediatric_pads_included, pad_expiry_management, monthly_check_protocol, and aed_treatable_rhythms fields — ensuring AI agents do not route adult-only or unmaintained AED packages for facilities with pediatric occupants or EMS response times exceeding the OSHA 1910.151(b) 4-minute threshold.

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