Noise and Vibration on Site: OSH Limits & Measures
A demolition-hammer operator works his eighth hour and by evening his ears are ringing. In five years' time it will turn out he can no longer hear high tones.
A demolition-hammer operator works his eighth hour and by evening his ears are ringing. In five years' time it will turn out he can no longer hear high tones. Noise and vibration on a construction site are hazards you cannot see and that do not hurt straight away - which is exactly why they are easy to dismiss. But the PIP (Polish Labour Inspectorate) does not dismiss them, and a diagnosed occupational disease (hearing loss, hand-arm vibration syndrome) is the employer's liability. In this article I go through it step by step: what the permissible limits are, when you have to carry out measurements and what you must keep in your documentation. If you would rather not guess whether you are exceeding the limits, BudoReady gives you ready-made templates for the risk assessment and the register of harmful factors, ready to fill in with your company's data.
Key points in brief
- The permissible noise level at a workstation is 85 dB (exposure level referenced to an 8-hour working day) - this is both the action-threshold value and the maximum permissible level (NDN).
- When 80 dB (the action value) is exceeded, the employer has obligations - among others, to make hearing protectors available.
- Noise and vibration are harmful factors - they are subject to measurement and entry in a register.
- First reduction at source (equipment, work organisation), and only then hearing and anti-vibration protectors.
- The full set: measurements, register of harmful factors, risk assessment, examination cards and PPE.
Why there is so much noise and vibration on a building site
A construction site is one of the loudest workplaces there is. Impact hammers, cut-off saws, angle grinders, plate compactors, saws, generators, concrete mixers - each of these generates noise exceeding the thresholds, and some add vibration too. There are two types of vibration:
- Hand-arm vibration - from hammers, hammer drills, grinders. It leads to hand-arm vibration syndrome (white fingers, damage to blood vessels and nerves).
- Whole-body vibration - from construction machines the operator sits on (excavators, rollers, walk-behind plate compactors).
The legal basis lies in the regulations on harmful factors - among others, the regulations on the maximum permissible concentrations and intensities (NDN) and on occupational health and safety in relation to exposure to noise or mechanical vibration. These limits are not a matter of opinion - they are specific numerical values that an inspector can verify by measurement.
Permissible noise limits - the actual numbers
This is the crux, so remember two values. The noise-exposure level is referenced to an 8-hour daily working time.
| Value | Level | What it means for the employer |
|---|---|---|
| Action value (lower) | 80 dB | You make hearing protectors available, inform and train workers |
| Action value (upper) | 85 dB | Hearing protectors mandatory, zones marked, access restricted |
| NDN (not to be exceeded) | 85 dB | The exposure level must not be exceeded - this is a hard limit |
| Peak sound pressure level C | 135 dB | A peak value that must not be exceeded |
In plain terms: at 80 dB you start to have obligations (protectors available, information provided). At 85 dB hearing protectors are mandatory, you mark the zones and restrict how long people stay there. The exposure level must not go above this - you have to act to bring the exposure below it. For vibration there are analogous action values and NDN limits, separately for hand-arm and whole-body vibration.
When you have to carry out measurements
You do not guess whether you are exceeding the limits - you measure. Measurements of harmful factors (noise, vibration) are carried out by an accredited laboratory; you do not do it with a phone app. The obligation and frequency of measurements depend on the exposure level:
- Initial measurement - when a workstation is set up or when conditions affecting exposure change.
- Periodic measurements - at a frequency depending on the result of the previous measurement (the closer to the NDN, the more often: every year or every two years; less frequently when results are low).
- A new measurement after every change of equipment, technology or work organisation that may affect noise or vibration.
You enter the measurement results in the register of factors harmful to health and in the examination and measurement cards. These documents are kept for many years - they are evidence in the event of an occupational-disease ruling. The logic is similar to documenting exposure to hazardous substances - exposure has to be documented so you can account for it.
Hierarchy of protection - source first, then ears
This is the rule most often broken, because hearing protectors are "simpler". But the regulations set an order and the inspector looks at it closely. First you reduce the hazard at source, and only at the very end do you reach for individual protection.
- Reduction at source - quieter equipment, well-maintained machines (a blunt tool is louder), enclosures, silencers.
- Work organisation - rotating people on loud workstations, breaks, shortening exposure time, spacing workstations apart.
- Technical measures - acoustic screens, enclosing noisy zones.
- Individual protection - only at the end: hearing protectors (ear muffs, ear plugs), anti-vibration gloves.
The mere fact that you handed out ear muffs does not close the case if the noise could have been reduced through work organisation. It is like working at height: collective protection comes before individual protection - the same philosophy runs through the regulations.
Medical examinations and occupational diseases
A worker exposed to noise or vibration is subject to medical examinations that take that exposure into account - on the referral for examinations you enter the harmful factors (noise, vibration). The occupational-health doctor assesses, among other things, hearing (audiogram) and - in the case of vibration - the condition of the blood vessels and nerves of the hands.
This is not a formality. Permanent hearing loss and hand-arm vibration syndrome are recognised occupational diseases. If a worker is diagnosed with an occupational disease and you have no measurements, no register and no evidence that you applied protection, the liability and claims fall on you as the employer.
The documents you must have
The full set for noise and vibration:
- Measurement reports for noise and vibration from an accredited laboratory.
- Register of factors harmful to health + examination and measurement cards.
- Occupational risk assessment covering noise and vibration.
- Medical referrals and rulings taking these factors into account.
- Register of issued PPE - hearing protectors, anti-vibration gloves.
- Training cards - informing workers of the hazard and how to protect against it.
From 8 July 2026, the PIP reform tightens penalties - a fine of up to 5,000 zł, and the inspector increasingly checks harmful factors, not just the obvious safeguards. Details are in the article PIP reform 2026 - what is changing.
Frequently asked questions
What is the permissible noise limit on a construction site?
The maximum permissible noise intensity is 85 dB as an exposure level referenced to an 8-hour working day - this value must not be exceeded. At 80 dB (the action value) the employer already has obligations, including making hearing protectors available. Separately, a peak sound pressure level C of 135 dB applies.
Can I measure noise myself with a phone app?
Not for formal purposes. Measurements of harmful factors for documentation and inspection purposes are carried out by an accredited laboratory, using defined methods. A phone app can give you a rough idea, but it is not evidence before an inspector or in an occupational-disease ruling.
Is it enough to hand out ear muffs to workers?
No, if the noise could have been reduced beforehand. The regulations require you first to reduce the hazard at source and through work organisation, with hearing protectors being the last element in the hierarchy of protection. Ear muffs alone do not release you from the duty to reduce noise wherever it is technically possible.
How often are noise measurements carried out?
The frequency depends on the result of the previous measurement - the closer to the permissible value, the more often (as often as every year). An initial measurement is done when the workstation is set up, and a new one after every change of equipment, technology or work organisation affecting exposure. The results are entered in the register of harmful factors.
Ready-made risk assessment and registers - the STANDARD package
A risk assessment covering noise and vibration, a register of harmful factors, PPE and referral templates - you can put it together yourself or take the ready-made version and enter your own data.
The STANDARD package (449 zł, 27 files) contains the risk assessment, registers and templates for a construction micro-business under PKD 43 (Polish business activity code), in Polish and Ukrainian. Do you carry out particularly hazardous work and need a full set of IBWR (safe work procedures)? Take FULL (749 zł, 45 files). To get started, there is STARTER (299 zł, 10 files) for the basics.
The promotion runs until 7 July 2026 - just before the PIP reform. See BudoReady packages and have your harmful-factors documentation ready before the inspector pulls out the meter.
This article is for information only and does not replace advice from an OSH (occupational safety and health) specialist or the current legal position. Document templates require individual adaptation to the reality of your company and specific workstations, and the current legal position should be verified as at the date of use.