PUWER Checklist for Arborists UK
PUWER — the Provision and Use of Work Equipment Regulations 1998 — applies to virtually all equipment used in arborist work. Understanding what PUWER requires, which equipment it covers and how to build a compliant inspection system is essential for any arborist carrying out commercial tree work in the UK.
This guide covers what PUWER means for arborists, the equipment it applies to, what pre-use checks must include, how formal inspections differ from daily checks, and what commercial clients and the HSE expect to see.
PUWER and arborists — what you need to know
PUWER stands for the Provision and Use of Work Equipment Regulations 1998. It applies to virtually all equipment used at work — and for arborists, that means chainsaws, wood chippers, stump grinders, MEWPs, vehicles, trailers, climbing equipment and hand tools.
The regulations require employers and self-employed workers to ensure that work equipment is suitable for its intended use, properly maintained, inspected at appropriate intervals, and only used by people who have received adequate training and instruction. Failure to comply with PUWER can result in HSE enforcement action and, more critically, leaves the arborist legally exposed if an incident occurs involving equipment that was not properly checked or maintained.
Arborist equipment covered by PUWER
If it is used at work, PUWER applies. The following are the main equipment types arborists need to have a documented inspection and pre-use check system in place for.
Chainsaws
- Chain sharpness, tension and condition
- Chain brake — test before every use
- Throttle trigger lockout
- Chain catcher condition
- Bar condition — rails, groove, sprocket nose
- Oiling system function and bar oil level
- Fuel system — leaks, cap security
- Anti-vibration mounts and handles
Wood chippers
- Emergency stop — test before operation
- Infeed controls and reverse function
- Guards and feed rollers
- Discharge chute direction and security
- Fluid levels — hydraulic, oil, coolant
- Tyres and wheel fixings
- Towing connection and lighting board
Stump grinders
- Cutting wheel teeth condition and security
- Guards and deflectors in place
- Engine and hydraulic controls
- Stability — no tipping risk on ground
- Fluid levels and no leaks
- Buried services check before starting
MEWPs
- Platform and basket condition
- Upper and lower controls function
- Emergency lowering system
- Harness anchor points
- Tyres or tracks condition
- Outrigger operation and ground assessment
- LOLER thorough examination in date
Vehicles and trailers
- Lights — front, rear, indicators, brake
- Tyres condition and pressure
- Brakes and handbrake
- Towing hitch, safety chain, electrics
- Load security and capacity
- Mirrors and visibility
Climbing equipment
- Harness webbing, stitching and buckles
- Helmets — no cracks, chin strap secure
- Lanyards and connectors — gate function
- Ropes — no core damage, cuts, abrasion
- Karabiners — gate and lock function
- Pulleys and friction devices — wear
The difference between PUWER pre-use checks and formal inspections
PUWER distinguishes between two types of equipment assessment that arborists need to maintain. Understanding the difference is important both for compliance and for building a system that satisfies commercial clients.
Pre-use checks (daily)
- Carried out by the operator before each use
- Visual and functional inspection of the equipment
- Identifies obvious defects, damage or safety issues
- Should be recorded on a pre-use check sheet
- Results in equipment being approved for use or taken out of service
- Required every time equipment is put into use
Formal inspections (periodic)
- Carried out by a competent person at defined intervals
- More in-depth than a daily pre-use check
- For most equipment, required at least annually
- MEWPs require LOLER thorough examination every 6 months
- Produces a written record retained for equipment life
- Does not replace daily pre-use checks
PUWER, training and operator competence
PUWER requires that work equipment is used only by people who have received adequate information, instruction and training. For arborists, this means maintaining records that demonstrate who is trained and competent on each type of equipment in the business.
Chainsaw competence
Operators must hold relevant NPTC/City & Guilds units — minimum CS30 and CS31 for basic chainsaw use. Aerial chainsaw work requires additional units. Records should show certification and expiry dates.
MEWP competence
MEWP operators must be trained and assessed as competent. IPAF or equivalent training is expected. Records should show the category of MEWP the operator is trained on and when training was completed.
Chipper and stump grinder
Operators must be trained in safe operation. Manufacturer training or an equivalent recognised course should be documented. PUWER requires this training to be specific to the equipment being used.
Climbing equipment
Working at Height Regulations 2005 require that all climbing and aerial work is carried out by competent persons. Relevant arborist climbing units and rescue training should be current and documented.
ArbDesk equipment pre-use check system — PUWER-compliant records for UK commercial arborist work.
The legislation that sits alongside PUWER for arborists
PUWER does not stand alone — it sits within a wider legislative framework that applies specifically to arborist operations. Understanding how these regulations interact helps arborists build a compliant system rather than treating each regulation in isolation.
The primary regulation. Equipment must be suitable, maintained, inspected and used by trained persons. Pre-use checks and formal inspections are the practical expression of PUWER compliance.
Lifting Operations and Lifting Equipment Regulations apply alongside PUWER for MEWPs and other lifting equipment. Thorough examinations every 6 months for equipment used to lift people are required in addition to PUWER checks.
Equipment condition and operator competence are key control measures in risk assessments. PUWER compliance supports and evidences the equipment controls listed in RAMS documents.
All climbing and aerial equipment must be inspected regularly by a competent person and before each use. PUWER and WAH Regulations obligations frequently overlap for arborist climbing equipment.
The overarching duty to ensure safe equipment. Documented PUWER compliance demonstrates this general duty is being actively discharged — important in any HSE investigation.
Industry guidance sets out expected pre-use inspection standards for arborist equipment. Commercial clients benchmark contractor PUWER compliance against AFAG-aligned practices.
Written by a practising arborist
The ArbDesk PUWER pre-use check system was built by Christian, a working arborist with direct experience of what commercial sites and HSE inspectors expect when they ask to see equipment safety records. The check sheets are not adapted from generic industrial templates — they are built around the equipment arborists actually use and the specific inspection points that matter for tree surgery operations.
The system covers all six main arborist equipment categories with dedicated check sheets for each, structured so that pre-use records link directly to the equipment controls referenced in RAMS documents.
“Proper system built around how arborist work actually runs. Not just a generic template.”
PUWER for arborists — frequently asked questions
Get your PUWER documentation sorted
Pre-use check documents for chainsaw, wood chipper, stump grinder, MEWP, vehicles and hand tools — included in the ArbDesk Pro Pack alongside the full RAMS system and COSHH assessments.
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