Question 1

What is a HAVS risk assessment?

Accepted Answer

A HAVS (Hand-Arm Vibration Syndrome) risk assessment evaluates the vibration exposure of workers who use power tools and vibrating equipment. Under the Control of Vibration at Work Regulations 2005, employers must assess and manage the risks from hand-arm vibration to prevent conditions like vibration white finger, carpal tunnel syndrome, and loss of grip strength.

Question 2

How are HAVS exposure points calculated?

Accepted Answer

Exposure points are calculated using the HSE formula: Points = (vibration magnitude ÷ 2.5)² × 100 × exposure hours. This gives a daily exposure score. 100 points equals the Exposure Action Value (EAV) of 2.5 m/s² A(8), and 400 points equals the Exposure Limit Value (ELV) of 5 m/s² A(8). The points system makes it easy to add exposures from different tools throughout the day.

Question 3

What is the difference between EAV and ELV?

Accepted Answer

The Exposure Action Value (EAV) is 2.5 m/s² A(8), equivalent to 100 exposure points. When exceeded, employers must introduce health surveillance, provide information and training, and take steps to reduce exposure. The Exposure Limit Value (ELV) is 5 m/s² A(8), equivalent to 400 exposure points. This must never be exceeded — if it is, work must stop immediately and exposure must be reduced.

Question 4

Which tools require a HAVS assessment?

Accepted Answer

Any power tool or vibrating equipment that workers use regularly should be assessed. Common examples include angle grinders, breakers, hammer drills, chipping hammers, needle scalers, concrete pokers, impact wrenches, jigsaws, orbital sanders, and strimmers. Even tools with relatively low vibration can exceed the EAV if used for long periods.

Question 5

How often should a HAVS assessment be reviewed?

Accepted Answer

HAVS assessments should be reviewed whenever there is a significant change in tools, tasks, or working patterns. HSE recommends reviewing at least annually, or sooner if new tools are introduced, work patterns change, a worker reports symptoms of HAVS, or health surveillance identifies a problem. Regular reviews ensure your assessment remains accurate and protective.

Question 6

What health surveillance is required for HAVS?

Accepted Answer

When workers are exposed above the EAV (100 points / 2.5 m/s² A(8)), employers must provide health surveillance. This includes a Tier 1 questionnaire, a Tier 2 assessment by a trained person, and if needed, Tier 3-5 assessments by an occupational health professional. Health surveillance must be offered before first exposure and then at regular intervals, typically annually.

Question 7

Is this HAVS calculator free to use?

Accepted Answer

Yes, this HAVS risk assessment calculator is completely free. You can calculate exposure points, see risk levels, and understand required actions without signing up. To download a branded PDF report of your assessment, we ask for your work email so we can send you a copy of the results alongside the download.

Free HAVS Risk Assessment Generator

Assessment details

Frequently asked questions

Now add RAMS, COSHH & SSOW