Aerial equipment, as defined by the Legal Information Institute, may be made of metal, wood, fiberglass reinforced plastic (FRP), or other material; it may be powered or manually operated; and it is deemed an aerial lift whether or not it can rotate about a substantially vertical axis.
Daily MEWP safety verification for site supervisors
The scope of your morning verification begins with understanding what constitutes the equipment you are managing. According to the Legal Information Institute, aerial equipment may be made of metal, wood, fiberglass reinforced plastic (FRP), or other material. This definition applies whether the unit is powered or manually operated. The source further states that these units are deemed to be aerial lifts whether or not they are capable of rotating about a substantially vertical axis. A unit is deemed an aerial lift whether or not it can rotate about a substantially vertical axis.
Operator duties form the second pillar of your daily check. You must establish a clear channel for defect reporting before the crew begins work. According to the Health and Safety Executive, operators should be encouraged to report defects or problems. Your role is to verify that this encouragement is active and that operators know how to log issues. Do not assume that silence indicates compliance; active verification of the reporting process is required.
Print the reference table and use it to verify the platform gap and ground conditions before the first lift of the day.
Key takeaways for how to check mewp safety before daily use
- Operator reporting: Encourage operators to report defects or problems immediately, as stated by the Health and Safety Executive.
- Ground stability: Check for localised ground features like trenches, manholes, and uncompacted backfill, which can lead to overturning, according to the Health and Safety Executive.
- Wind speed limit: Set a maximum safe wind speed for operation before the crew starts work, according to the Health and Safety Executive.
- Platform gap: Ensure the landing and platform are no more than 100mm apart when the MEWP is used to access the work area, as required by WorkSafe New Zealand.
- Boom testing: Verify that acoustic emission testing of fiberglass insulated booms meets the standards in AS 4748, or a similar procedure, according to WorkSafe New Zealand.
A filled reference table of MEWP safety rules by publisher
The following table lists the eight specific safety rules and definitions required for daily MEWP verification. Each row identifies the publisher, the specific rule or definition, the exact supporting quote, and the source URL. Use this reference to confirm that your site's daily checks align with the stated requirements from these sources.
| Publisher | Safety Rule/Definition | Source Quote | URL |
|---|---|---|---|
| Legal Information Institute | Equipment definition | "Aerial equipment may be made of metal, wood, fiberglass reinforced plastic (FRP), or other material; may be powered or manually operated; and are deemed to be aerial lifts whether or not they are capable of rotating about a substantially vertical axis." | ( Legal Information Institute) |
| Health and Safety Executive | Operator reporting | "Operators should be encouraged to report defects or problems." | ( Health and Safety Executive) |
| Health and Safety Executive | Ground stability | "Localised ground features, eg trenches, manholes and uncompacted backfill, can all lead to overturning." | ( Health and Safety Executive) |
| Health and Safety Executive | Wind speed limit | "Set a maximum safe wind speed for operation." | ( Health and Safety Executive) |
| WorkSafe New Zealand | Platform gap limit | "Where the MEWP’s platform is next to the work area landing and the MEWP is used to access the work area, the landing and platform must be no more than 100mm apart." | ( WorkSafe New Zealand) |
| WorkSafe New Zealand | Safety features | "Figures 4 – 6 show the various safety features of specific types of MEWPs and components that should be checked before use." | ( WorkSafe New Zealand) |
| WorkSafe New Zealand | Boom testing | "The test must meet the standards in AS 4748: Acoustic Emission Testing of Fiberglass Insulated Booms on Elevating Work Platforms, or a similar procedure." | ( WorkSafe New Zealand) |
| WorkSafe New Zealand | Operator standard | "Unit Standard 23964v1: Assess the Worksite, Prepare and Operate a Vertical Lift Elevating Work Platform (EWP)" | ( WorkSafe New Zealand) |
Print this table and keep it with your daily inspection records. Verify the platform gap and ground conditions against the specific limits and definitions listed above before the first lift of the day.
Site conditions: ground, wind, and access gaps
Before the crew starts work, you must verify the ground conditions beneath the mobile elevating work platform. Localised ground features, such as trenches, manholes, and uncompacted backfill, can all lead to overturning, according to the Health and Safety Executive. When you walk the perimeter of the lift’s footprint, look specifically for these voids or soft spots. If you find a trench or manhole under the outriggers, you must relocate the unit or shore the ground before raising the platform. The HSE guidance for Mobile elevating work platforms (MEWPs) treats these specific ground features as direct risks to stability, so your morning inspection must confirm the base is solid and free of these hazards.
Wind conditions also require a specific check before the first lift. The Health and Safety Executive states that you must set a maximum safe wind speed for operation, according to the Health and Safety Executive. This rule does not specify a numerical limit; instead, it requires you to establish a defined threshold for your site. You should document this limit in your daily log so operators know when to stop work. If the wind exceeds the limit you have set, the platform must remain on the ground. This check ensures the crew does not attempt to work in conditions that exceed the operational safety parameters you have defined for the site.
Finally, verify the access gap between the platform and the work area. WorkSafe New Zealand specifies that where the MEWP’s platform is next to the work area landing and the MEWP is used to access the work area, the landing and platform must be no more than 100mm apart, according to WorkSafe New Zealand. Measure this gap with a ruler or a known reference object before allowing anyone to step across. If the gap exceeds 100mm, the platform is not ready for safe access. This requirement applies specifically when the platform is used to transfer personnel to the work area. Ensure the platform is positioned correctly so the gap meets this standard. If the gap is too wide, adjust the platform position so the landing and platform are no more than 100mm apart.
Equipment inspection: booms, covers, and features
Verify the structural integrity and protective components of the mobile elevating work platform before the crew begins work. The inspection covers boom testing standards, cover strength, and specific safety features that must be present and functional.
Boom testing standards For fiberglass insulated booms, the testing procedure must meet specific standards. The test must meet the standards in AS 4748: Acoustic Emission Testing of Fiberglass Insulated Booms on Elevating Work Platforms, or a similar procedure, according to WorkSafe New Zealand. This requirement applies specifically to the acoustic emission testing of the boom material to ensure it is safe for use.
Cover strength requirements Temporary covers installed on the equipment must be structurally sound. Any temporary covers should be strong enough to withstand the applied pressure, according to Health and Safety Executive. When inspecting the platform, check that any covers in place are secure and capable of handling the forces they will encounter during operation.
Safety feature verification Specific components and safety features vary by the type of mobile elevating work platform. Figures 4 – 6 show the various safety features of specific types of MEWPs and components that should be checked before use, according to WorkSafe New Zealand. Use these visual references to identify which features are relevant to the specific unit on your site. Cross-reference the unit type against the figures to determine which components require inspection.
Daily verification step Record the condition of the boom, covers, and safety features in your daily log. If a cover is damaged or a safety feature is missing, tag the unit out of service.
Operator standards and equipment definitions
Before the crew starts, verify that the operator holds the correct unit standard for the specific type of mobile elevating work platform (MEWP) on site. WorkSafe New Zealand identifies Unit Standard 23964v1 as the requirement to assess the worksite, prepare, and operate a vertical lift elevating work platform (EWP), according to WorkSafe New Zealand. If the platform is mounted on a truck, the operator must meet Unit Standard 23961v1, which covers assessing the worksite, preparing, and operating a truck mounted elevating work platform (EWP), according to WorkSafe New Zealand. For platforms mounted on a trailer, the applicable qualification is Unit Standard 23963v1, which requires the operator to assess the worksite, prepare, and operate a trailer mounted elevating work platform (EWP), according to WorkSafe New Zealand.
These unit standards ensure the operator is trained for the specific mounting configuration of the equipment. The design and safety requirements for these platforms are grounded in international standards. WorkSafe New Zealand states that the relevant design standard is based on ISO 16368 – Mobile Elevating Platforms – Design, Calculations, Safety Requirements and Test Methods – Annex H, according to WorkSafe New Zealand. This ISO reference provides the technical basis for the safety features and structural calculations of the MEWP.
When checking operator credentials in the morning, match the unit standard number to the physical platform type. A vertical lift EWP requires 23964v1, a truck mounted EWP requires 23961v1, and a trailer mounted EWP requires 23963v1, according to WorkSafe New Zealand. Keep these standard numbers visible in your daily log to confirm compliance before the first lift.
The Washington State Department of Labor & Industries advises that before using a ladder you verify it can hold you and all your equipment Ladder Safety.
If any item fails, tag the equipment out of service and report the defect immediately.
Related guides
FAQ: How to check mewp safety before daily use
What is the maximum gap between the MEWP platform and the landing?
The landing and platform must be no more than 100mm apart when the MEWP is used to access the work area, according to WorkSafe New Zealand. This limit applies specifically where the platform is next to the work area landing. Verify this distance before the crew begins their first lift of the day.
Who is responsible for reporting defects on the MEWP?
Operators should be encouraged to report defects or problems, according to Health and Safety Executive. Operators should be encouraged to report defects or problems, according to the Health and Safety Executive. As a supervisor, ensure your crew knows to flag any issues immediately so you can address them before work starts.
What standard applies to acoustic emission testing of fiberglass booms?
The test must meet the standards in AS 4748: Acoustic Emission Testing of Fiberglass Insulated Booms on Elevating Work Platforms, or a similar procedure, according to WorkSafe New Zealand. WorkSafe New Zealand requires the test to meet AS 4748, Acoustic Emission Testing of Fiberglass Insulated Booms on Elevating Work Platforms, or a similar procedure.
How should localised ground features like trenches affect MEWP setup?
These features compromise the stability of the platform’s base. Inspect the ground surface carefully to identify and mitigate these hazards before positioning the equipment.
What unit standard covers the assessment of a vertical lift EWP?
Unit Standard 23964v1 covers the assessment of the worksite, preparation, and operation of a vertical lift Elevating Work Platform (EWP), according to WorkSafe New Zealand. This standard defines the specific competencies required for vertical lift platforms. Ensure your operators hold this qualification or an equivalent certification before they operate the equipment.