Noise Monitoring Log

Educational guidance on registers and logs — what each records, who maintains it, what it typically contains and how long it is generally kept. Informational only — template examples, not official documents or legal advice; a register documents activity, it does not by itself prove compliance, and employers remain responsible.

What a noise monitoring log is

A noise monitoring log records measurements of noise levels and exposure across a workplace — at machines, tasks or areas — so the organisation can judge where hearing protection, zoning or quieter methods are needed.

This page is an educational overview with a simplified example. It is not an official template, not jurisdiction-specific and not legal advice — noise exposure limits, action levels and methods vary by country.

Purpose

• Record noise measurements and exposure estimates.
• Compare them with any action level or limit.
• Identify where hearing protection and zoning are needed.
• Support assessment and any hearing health surveillance.

Who maintains it

• A safety lead or competent person records the results.
• Measurement may be in-house or by a competent contractor.
• Results are reviewed against the relevant action levels.
• The employer decides the regime and who is responsible.

When it is used

• When noise measurement is carried out on the agreed schedule.
• After a change to machinery, layout or process.
• When a noisy task or area is introduced.
• When reviewing hearing protection zones.

Typical fields

• Date, area, machine or task measured.
• Measured level and any exposure estimate.
• The action level or limit it is compared with.
• Controls and hearing protection in place.
• Action taken and sign-off.
• Example columns only — adapt to your workplace and the applicable law.

Common mistakes

• Measuring once and never re-checking after changes.
• Relying on hearing protection instead of reducing noise.
• Not defining and signing hearing protection zones.
• Not linking high exposure to hearing health surveillance.

Document workflow

A noise monitoring log works with the exposure chain: the noise risk is assessed, measurements are logged here, and zoning, hearing protection and hearing health surveillance follow afterwards. A change to machinery or process should trigger re-measurement.

See the related documents below for what is commonly used with and completed after a noise monitoring entry.

Retention (high level)

Noise exposure and hearing records may need to be kept for a long period because hearing damage develops over time, in line with the applicable law. This page does not state a required period — confirm with the applicable law and the official authority.

Completing and sharing as a PDF

Results are often held in a system and exported to PDF for assessments and audits. Exporting to PDF supports the record; it does not make the results official or prove compliance.

Employer checklist

• Measure noise meaningfully and re-check after changes.
• Reduce noise at source before relying on hearing protection.
• Define and sign hearing protection zones.
• Link high exposure to hearing health surveillance.

Worker notes

• Wear hearing protection in marked zones.
• Report new or louder noise sources.
• Take up any hearing health surveillance offered.

Country considerations

Noise action levels, limits and methods vary by country, and the official authority differs. This page is general and high-level — not a statement of any country’s law and not legal advice.

Confirm current requirements with the official authority for your country and a qualified professional.

Who is responsible

The employer is responsible for assessing and controlling noise exposure and for compliance. This page is an educational overview with a template example; it does not make a workplace compliant and does not transfer responsibility.