"MEWP" (mobile elevating work platform) is the ANSI/CSA term that replaced "aerial work platform" in 2018. It covers scissor lifts, boom lifts, and vertical mast lifts. Training requirements for these machines come from two places that overlap but are not identical: OSHA regulations, which are enforceable law, and the ANSI A92 standards, which OSHA cites as the recognized industry practice.
The two rule sets
OSHA. Boom-type lifts fall under 29 CFR 1926.453 (aerial lifts, construction) and 1910.67 (general industry). Scissor lifts are treated by OSHA as mobile scaffolds, so their training requirement is 1926.454: each employee who works on a scaffold must be trained by a qualified person to recognize the hazards and the procedures to control them. OSHA does not specify hours, a curriculum, or a card.
ANSI A92.24-2018 is the training standard for MEWPs, paired with A92.22 (safe use) and A92.20 (design). It is not law, but OSHA references A92 in its interpretation letters and uses it as the benchmark for what a reasonable employer does. Rental companies and general contractors almost universally require A92.24-compliant training before letting anyone on their machines.
MEWP groups and types
A92 classifies machines two ways, and operator training has to match the class of machine the operator will run.
| Classification | Meaning | Typical machines |
|---|---|---|
| Group A | Platform stays inside the tipping lines (over the chassis) | Scissor lifts, vertical mast lifts |
| Group B | Platform can extend beyond the tipping lines | Articulating and telescopic boom lifts |
| Type 1 | Travel only with the platform stowed | Push-around mast lifts |
| Type 2 | Travel elevated, controlled from the chassis | Some truck-mounted units |
| Type 3 | Travel elevated, controlled from the platform | Most self-propelled scissors and booms |
A Genie GS-1930 is Group A, Type 3. A JLG 450AJ is Group B, Type 3. Training on one group does not qualify an operator on the other.
What operator training must include
A92.24 splits operator preparation into two steps that are often confused.
Training is general and can be done in a classroom or online. It covers the machine classification system, pre-start inspection, workplace risk assessment, fall protection requirements, the manufacturer's manual, stability and the factors that reduce it (wind, slope, load, extension), electrocution and crushing hazards, emergency and rescue procedures, and the operator's authority to refuse an unsafe assignment. It ends with a written or oral test and a hands-on practical evaluation on a machine in the same group.
Familiarization is machine-specific and happens every time the operator is assigned a model they have not run before. It covers where the manuals are stored, the location and function of every control, emergency lowering, and any features specific to that unit. Familiarization is done on the actual machine, usually by the rental company at delivery or by a qualified person on site. A trained operator who skips familiarization on a new model is out of compliance.
Supervisors and occupants
A92.24 also requires training for two groups that older aerial-lift programs ignored:
- Supervisors who direct MEWP operators must be trained to select the right machine for the task, understand the rules that apply, recognize hazards, and know what protection the operator and occupants need. They do not need to be trained operators.
- Occupants (anyone in the platform who is not operating) must receive instruction on fall protection, how to stay clear of controls, and what to do if the operator is incapacitated. This is typically a short site briefing.
Fall protection
On boom lifts, a full-body harness with a lanyard attached to the manufacturer's anchor point is required at all times. On scissor lifts, the guardrails are the primary fall protection; a harness is not required by OSHA when guardrails are in place, though many sites require one anyway. Never tie off to an adjacent structure, and never exit an elevated platform except where the manufacturer specifically permits it.
How often operators retrain
Neither OSHA nor A92.24 sets a fixed expiration for MEWP operator training. A92.24 requires retraining when an operator is observed operating unsafely, is involved in an incident, or when equipment or conditions change. In practice, most employers and rental companies align on a three-year cycle so that MEWP and forklift training renew together. Familiarization, again, is required for every new model regardless of how recent the general training is.
Where this leaves employers
Keep a record for each operator showing the date of training, the group and type covered, the trainer's name, the practical evaluation result, and each familiarization completed. Keep supervisor and occupant briefings on file too. When a rental machine arrives, get the familiarization sign-off before it leaves the ground.
Flat Earth Equipment does not offer MEWP operator training. We stock aftermarket parts for the machines: Genie and JLG control boxes, joysticks, level sensors, chargers, and switches, plus the Genie scissor lift error code guide and Genie and JLG serial-number lookups for confirming model and year before ordering. Operators who also run forklifts can complete the OSHA formal-instruction portion through our online forklift certification.
Frequently asked questions
Is a scissor lift an aerial lift under OSHA? No. OSHA regulates scissor lifts as mobile scaffolds (1926.451 and 1926.454), not under the aerial lift rule. The training requirement still applies; it just comes from the scaffold standard.
Does MEWP training expire? There is no federal expiration date. Retraining is triggered by unsafe operation, an incident, or a change in equipment or work conditions. A three-year renewal is common practice.
Can MEWP training be done entirely online? The general training portion can. The practical evaluation and the machine-specific familiarization cannot; both require a real machine and a qualified person to observe.
Does forklift certification cover scissor lifts? No. Forklift training under 1910.178 covers powered industrial trucks. MEWPs are a separate classification with separate training, even when the same operator runs both.
Who provides familiarization on a rental lift? Usually the rental company at delivery, if you ask for it. Otherwise a qualified person on your site who has operated that model must do it before the operator uses the machine.