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ASME B30.23-2016 — Personnel Lifting Systems Safety Standard
👷 ASME B30.23-2016 is the volume of the ASME B30 series dedicated to personnel lifting systems, issued as a revision of ASME B30.23-2011. The Standard applies to systems in which a crane (overhead, gantry, tower, or mobile) hoists a dedicated personnel platform to safely raise and lower people to a work position for installation, repair, painting, inspection, and similar tasks. Because human life is at stake, the core principle of B30.23 is “do not lower the safety bar for people”: crane-borne personnel lifting is an exceptional operation demanding far stricter requirements than ordinary load lifting — a dedicated engineered platform, independent safety protections, verified procedures, and well-trained personnel, all without exception. The Standard covers platform design and construction, the crane-platform interface, inspection, testing, maintenance, and operating procedures.
🚨 Life is priceless: B30.23 proceeds from the premise that whenever a safer means of reaching the work point exists (scaffolding, mobile elevating work platforms, aerial lifts), personnel must not be lifted by crane. Crane-borne personnel lifting is permitted only when no other means is feasible and all the requirements of this Standard are met.
1. Scope and Intent 📌
B30.23 states its Intent: to define safety requirements for personnel lifting systems and prevent death or injury from platform falls, tip-overs, overloads, or operator error. The Standard defines a “personnel lifting system” as including the personnel platform, its connection to the hook or lifting device, limit and safety devices, and the operation and signaling procedures. It applies to personnel platforms on both fixed and mobile cranes, but not to dedicated personnel lifts (elevators, construction hoists) or ordinary freight lifting under B30.9.
The Standard requires that the platform’s rated number of occupants and rated load be calculated and marked; the platform stays level during transport and use; and the platform provides guardrails, toe boards, slip-resistant flooring, anchor points (for occupant safety harnesses), and a safe access/egress. Failure on any point disqualifies the platform for personnel use.
⚠️ A special warning: ordinary freight platforms, containers, pallets, forklift forks, and temporary welded steel cages are NOT dedicated personnel platforms and are forbidden for personnel lifting. B30.23 requires a purpose-built platform designed, tested, and constructed to this Standard.
2. Design and Construction Requirements 🔧
Chapter 23-1, “Construction and Characteristics,” sets the design and construction requirements:
- Design (23-1.1): platform structure, connections, and lifting points are designed for rated load plus personnel dynamic-load factors; lifting-point layout keeps the platform’s center of gravity stable and prevents tipping during lift; adequate stiffness and load margin.
- Protective devices: guardrail height, mid-rails, and toe boards per requirements; open sides have openable, lockable safety gates; occupant anchor points (harness tie-off points) meet load capacity.
- Crane interface: the platform connects to the crane hook or dedicated device with anti-release and anti-loosening fittings; hooks have safety latches; the platform must not swing or spin out of control on the hook.
- Safety devices: suitable configuration or in-work application of redundant braking/two-drum arrangements, anti-two-block and limit devices, and reliable two-way communication (hard-wired phone or radio) between ground and platform.
- Construction and marking: the platform carries permanent marking of rated load, maximum number of occupants, manufacturer, and serial number; safety instructions are posted inside.
| Item | Requirement | Inspection/Acceptance Point |
|---|---|---|
| Platform structure | Designed for rated load plus dynamic loads | Welds, connections, lifting points defect-free |
| Guardrails and toe boards | Height and spacing per requirements | No deformation, looseness, or gaps |
| Access gate and locking | Smooth operation with reliable lock | Gate lock mechanism acts reliably |
| Anchor points | Harness tie-off points with adequate capacity | Capacity marked; no corrosion or cracks |
| Hook and fittings | Safety latch complete; anti-release | Wear, deformation, throat-opening checks |
| Communication | Reliable two-way ground-to-platform link | Clear audio; backup arrangement |
| Marking | Rated load, occupant count, serial number | Clear and permanent |
🚨 The platform must never be overloaded, considering occupant count plus the weight of tools and materials carried; occupants must never climb the rails or reach out of the platform, must keep their safety harness attached at all times, and must keep both feet on the platform floor while it moves or lifts.
3. Inspection, Testing, and Maintenance 📋
Chapter 23-2 requires: inspection — before each use, the responsible supervisor checks the platform, fittings, hook, safety devices, and communication; qualified personnel perform periodic inspections at defined intervals focusing on weld cracks, lifting-point wear, rail deformation, and anchor-point condition; testing — new or overhauled platforms are tested to rated load and the specified load factor (e.g., static and dynamic load tests) with records issued; maintenance — cleaning, lubrication, and repair per manufacturer requirements, with worn parts replaced.
| Item | Interval | Points |
|---|---|---|
| Pre-use inspection | Before each job | Platform, hook, fittings, rails, safety devices, communication |
| Periodic inspection | Monthly/quarterly/annual | Structural welds, lifting-point wear, anchor points, rails and gate locks |
| Load testing | After new install/overhaul | Static and dynamic tests with records |
| Maintenance | Per schedule | Cleaning, lubrication, wear-part replacement, corrosion protection |
💡 Trust the certification, not the person: personnel lifting systems should be designed and manufactured by qualified, experienced firms, with design calculations and test certificates supplied. Keep these documents with inspection and maintenance records as the “release basis” for every personnel lift.
4. Operating Procedures and Engineering Practice 🛠️
Chapter 23-3 sets operating requirements: personnel lifting requires a written work procedure defining the roles of signal person, operator, attendant, and occupants; before each personnel lift, verify brakes, limits, and communication; lift and move smoothly and slowly, avoiding fast raising/lowering and swinging stops; clear obstacles and overhead lines from the travel path; and suspend personnel lifting in strong wind, thunderstorms, or other severe weather.
- 🔍 Work organization: assign a dedicated signal person and attendant; establish a “operator–signal–occupant” three-party confirmation system.
- 🔧 Joint verification: before personnel lifting, the responsible supervisor and the operator jointly confirm crane condition, platform condition, and the working environment.
- 📊 Emergency plans: prepare rescue procedures for platform jamming, power failure, and injury, with ground rescue provisions.
- 📋 Training and records: all participants are trained with records filed; every personnel lift is logged (time, occupants, load, weather, anomalies).
5. Frequently Asked Questions ❓
❓ Q: How does B30.23 relate to aerial-work-platform standards such as ANSI A92?
A: The A92 series covers dedicated mobile elevating work platforms (MEWPs) such as self-propelled scissors and boom lifts; B30.23 covers lifting a dedicated personnel platform with a crane. When A92 equipment is feasible, use it; B30.23 is the applicable standard for the exceptional case of crane-borne personnel lifting.
A: The A92 series covers dedicated mobile elevating work platforms (MEWPs) such as self-propelled scissors and boom lifts; B30.23 covers lifting a dedicated personnel platform with a crane. When A92 equipment is feasible, use it; B30.23 is the applicable standard for the exceptional case of crane-borne personnel lifting.
❓ Q: Can a pallet strapped to forklift forks carry people?
A: No. Pallets, drums, forks, and improvised platforms lack the guardrails, anchor points, and structural verification required for a B30.23-compliant dedicated platform — carrying people that way is a serious violation.
A: No. Pallets, drums, forks, and improvised platforms lack the guardrails, anchor points, and structural verification required for a B30.23-compliant dedicated platform — carrying people that way is a serious violation.
❓ Q: Must occupants wear safety harnesses in the platform?
A: Yes. The Standard requires occupants to keep their harness attached to the platform anchor points at all times, even with tall guardrails, to prevent being thrown out if the platform tilts or falls.
A: Yes. The Standard requires occupants to keep their harness attached to the platform anchor points at all times, even with tall guardrails, to prevent being thrown out if the platform tilts or falls.
🔍 Q: May personnel lifting continue in windy weather?
A: No — when wind exceeds the prescribed limit (depending on platform and crane model) or in rainstorms, hail, or other severe weather, personnel lifting is prohibited; gusts cause platform swaying that readily throws occupants off balance.
A: No — when wind exceeds the prescribed limit (depending on platform and crane model) or in rainstorms, hail, or other severe weather, personnel lifting is prohibited; gusts cause platform swaying that readily throws occupants off balance.
