Hand Arm Vibration (HAV)
Full assessment of HAV risk to your staff.
NOHH Ltd provides hand-arm vibration (HAV) assessments to support compliance with the Control of Vibration at Work Regulations. Drawing on decades of occupational hygiene experience, this page outlines exposure evaluation methods, regulatory requirements, and how to arrange HAV assessment for your workforce.
Why Carry Out HAV Testing?
Exposure to hand-arm vibration (HAV) can cause serious long-term health conditions including vascular damage (such as Vibration White Finger), neurological disorders, musculoskeletal injury, and conditions like Carpal Tunnel Syndrome. Whole-body vibration (WBV) is also associated with back and neck pain in certain work environments.
To control these risks, the Control of Vibration at Work Regulations 2005 (implementing EU Directive 2002/44/EC) require employers to assess and manage vibration exposure.
Exposure Action and Limit Values
The Regulations set clear thresholds for daily vibration exposure:
Hand-Arm Vibration (HAV):
Exposure Action Value (EAV): 2.5 m/s² A(8)
Exposure Limit Value (ELV): 5 m/s² A(8)
Whole-Body Vibration (WBV):
Exposure Action Value (EAV): 0.5 m/s² A(8)
Exposure Limit Value (ELV): 1.15 m/s² A(8)
Employers must ensure that exposure levels are assessed, compared with these limits, and that effective controls are in place.
Sources of Vibration
HAV is commonly generated by powered hand tools and machinery, including:
Rotating tools such as grinders, polishers, and sanders
Percussive tools such as breakers, drills, and chipping hammers
Fixed machine tools used for component processing
All types can generate significant vibration levels that, without controls, quickly exceed exposure limits.
Our HAV and WBV Services
NOHH Ltd provides comprehensive support to help employers manage vibration risks, including:
On-site vibration exposure measurement and assessment
Calculation of daily personal exposure against EAV and ELV thresholds
Development of control strategies, with elimination or reduction at source as priority
Implementation of full vibration management plans
Practical recommendations for safe tool use, work rotation, and equipment maintenance
Ensuring Compliance and Worker Safety
We deliver clear, professional reports that identify risks, highlight non-compliance, and recommend remedial action. Our expertise ensures that your organisation meets the Control of Vibration at Work Regulations, protects employees’ health, and satisfies regulatory inspection requirements.
