Working at Height
Mobile Elevated Work Platforms & Boom Lifts
MEWP and boom lift operation, pre-use checks, exclusion zones and rescue planning for UAE construction and infrastructure sites, referencing IPAF certification and ADOSH-SF (formerly OSHAD) / Dubai Municipality access equipment requirements.
v2.0Updated 15 Feb 2026ADOSH-SF v4.1 (February 2026)Learning Objectives
- Distinguish scissor lifts, boom lifts and vertical mast lifts and their appropriate uses.
- Explain IPAF operator and demonstrator certification requirements for the UAE.
- Perform a pre-use inspection and function test of a MEWP.
- Apply exclusion zone, ground condition and outrigger requirements before setting up.
- Describe entrapment/rescue planning and the emergency lowering procedure.
Training Video
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1. MEWP Types and Selection
Scissor lifts provide vertical rise with a larger platform for group tasks but limited outreach; boom lifts (articulated or telescopic) provide outreach over obstacles and up/over access; vertical mast lifts suit narrow indoor spaces with light loads. Selection is based on the task's outreach, load, ground surface, and overhead clearance, following ADOSH-SF (formerly OSHAD) requirements to justify the choice in the task risk assessment before mobilising equipment to site.
2. Operator Certification
UAE sites require MEWP operators to hold current IPAF (or equivalent recognised) certification specific to the category operated — 1a/1b for static/mobile vertical lifts, 3a/3b for static/mobile booms. A Familiarisation Device Inspection must be completed for the specific make and model before use if the operator has not used that exact model before. Certification cards and site-specific inductions are checked by the site HSE team before issuing a permit to work.
3. Pre-Use Inspection
Before every shift, inspect tyres/tracks, hydraulic hoses for leaks, guardrails and toe boards, harness anchor points, emergency lowering controls, tilt alarm, and outrigger pads. Function-test drive, lift, steer and emergency stop at ground level before elevating. Check the load chart and ensure the platform is not overloaded with personnel, tools and materials combined. Any defect stops use and triggers a 'Do Not Operate' tag.
4. Ground Conditions and Exclusion Zones
Ground must be firm, level, and free of voids, trenches or soft backfill capable of causing tip-over; outriggers are fully extended and set on load-spreading pads. A physical exclusion zone (barriers, cones, or banksman) is established beneath and around the working envelope of boom lifts to prevent struck-by injuries from dropped tools or platform swing. Never operate within the minimum approach distance of overhead power lines without a permit and de-energisation confirmation.
5. Harness and Fall Protection
In boom lifts, all occupants wear a full-body harness with a short lanyard connected to the designated anchor point, restraining them inside the platform in the event of a sudden jolt or basket tip — this is mandatory in the UAE regardless of guardrail presence. Scissor lifts with intact guardrails generally do not require a harness unless the risk assessment identifies a specific ejection risk, such as working near an edge or leaning over the rail.
6. Entrapment and Rescue Planning
A site-specific rescue plan addresses platform entrapment due to hydraulic failure, obstruction, or operator incapacitation. Ground-level personnel must be trained on the manual/emergency lowering system location and operation before the MEWP is used unattended. If a suspended trauma situation occurs, retrieval must be achieved within the accepted time window; the rescue plan and trained ground rescuer are confirmed present before the permit to work is signed.
Knowledge Assessment
1. Which MEWP type is best suited to accessing over an obstacle with outreach?
2. IPAF category 3b applies to:
3. A Familiarisation Device Inspection is required when:
4. Before elevating a MEWP, the operator should function-test controls:
5. Outriggers on a boom lift should be set on:
6. In a boom lift, occupants must wear:
7. A scissor lift with intact guardrails generally requires a harness:
8. An exclusion zone beneath a working boom lift primarily protects against:
9. Ground personnel must be trained on the emergency lowering system:
10. MEWP work near overhead power lines requires:
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