Noise Management SWMS (Hearing Loss Prevention)
Industrial and construction noise risk management. Covers sound-level surveys per AS IEC 61672 Class 1/2, 85 dB(A) LAeq,8h exposure standard, peak 140 dB(C) threshold, engineering noise controls (enclosure / isolation / damping), HPD selection by attenuation class, audiometric testing programme (baseline + annual), and task rotation.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Noise exposure is one of the most prevalent and irreversible occupational health risks across Australian industrial and construction workplaces, with noise-induced hearing loss (NIHL) accounting for thousands of accepted workers' compensation claims annually. This Safe Work Method Statement addresses the systematic management of workplace noise exposure where sound pressure levels approach or exceed the 85 dB(A) LAeq,8h exposure standard or the 140 dB(C) peak action level prescribed under WHS Regulation 2025 Part 4.1. The SWMS covers sound-level survey methodology using Class 1 or Class 2 integrating sound-level meters compliant with AS IEC 61672, hierarchical noise control selection, hearing protector attenuation matching, and the mandatory audiometric testing programme required when personal protective equipment is relied upon. A documented SWMS is mandatory because uncontrolled exposure constitutes a breach of the PCBU's primary duty under section 19 of the WHS Act, and because audiometric testing, training, and consultation obligations under regulations 56–58 require auditable evidence of implementation.
Hazards identified
7 hazards covered, sorted by priority.
Permanent sensorineural hearing loss, high-frequency threshold shift and lifelong tinnitus with no clinical reversal pathway
Instantaneous acoustic trauma, tympanic membrane rupture and cochlear hair-cell destruction from single exposure event
Workers either remain over-exposed or become acoustically isolated, missing alarms and creating struck-by incident risk
Real-world attenuation falls 10–15 dB below laboratory SLC80 rating, leaving workers effectively unprotected during tasks
Daily noise dose silently exceeds standard despite each individual task appearing compliant in isolation
Sound pressure levels increase 6–10 dB above free-field measurements, invalidating prior risk assessments and exposure calculations
Failure to perceive critical safety communications leading to mobile plant strike, crush or evacuation delay injuries
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Specify quieter plant at procurement stage using buy-quiet policy, removing high-noise equipment such as pneumatic tools where electric alternatives exist.
- 2Elimination — Schedule highest-noise tasks during periods when minimum personnel are present on site, eliminating bystander exposure entirely from the work zone.
- 3Substitution — Replace impact fastening with adhesive, hydraulic or screw-fixing systems; substitute petrol generators with mains power or battery plant to reduce source levels by 10–20 dB.
- 4Engineering — Install acoustic enclosures, anti-vibration mounts, silencers and damping panels on fixed plant per AS/NZS 1269.1 to achieve at-source reduction verified by post-installation survey.
- 5Engineering — Erect acoustic screens and barriers between noise sources and worker positions, achieving line-of-sight interruption and minimum 10 dB insertion loss documented in noise map.
- 6Administrative — Conduct sound-level surveys using Class 1 or 2 meters per AS IEC 61672, calibrated before and after each survey, with results recorded in the site noise register.
- 7Administrative — Implement task rotation, signposted hearing protection areas and exposure-time limits calculated from measured LAeq using the 3 dB exchange rate per AS/NZS 1269.1.
- 8Administrative — Deliver AS/NZS 1269.3 training on HPD fitting, care and limitations; provide baseline and annual audiometric testing per AS/NZS 1269.4 with results communicated confidentially.
- 9PPE — Issue hearing protectors selected by SLC80 method per AS/NZS 1269.3 matched to measured exposure, ensuring protected level lies between 70–80 dB(A) to avoid over-attenuation.
- 10PPE — Provide custom-moulded or double protection (earplugs plus earmuffs) for tasks exceeding 100 dB(A), with documented fit-testing and replacement schedule for foam and reusable plugs.
Applicable Codes of Practice
Establishes 85 dB(A) LAeq,8h and 140 dB(C) peak exposure standard, mandates control hierarchy, audiometric testing and worker information duties.
Provides approved means of compliance for noise risk assessment, control selection, HPD programmes and audiometric surveillance under the WHS Regulation.
Specifies measurement methodology, engineering control evaluation, hearing protector selection by SLC80 and audiometric testing procedures referenced throughout this SWMS.
Defines Class 1 and Class 2 instrument accuracy required for legally defensible exposure surveys and pre/post calibration verification protocols.
Who this is for
- →Principal contractors on Tier 1 commercial and civil projects
- →Plant operators and mechanical fitters in heavy industry
- →Demolition, concrete cutting and piling subcontractors
- →Manufacturing and fabrication workshop supervisors
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
On a multi-storey concrete frame project, a formwork crew is scheduled to commence overhead drilling and bolt-fixing into a hardened slab adjacent to an operating tower crane and concrete pump. At the 6:30 am pre-start brief, the leading hand opens this Noise Management SWMS on the site tablet and walks the crew through the hazard register, highlighting the LAeq,8h escalation risk identified on the noise map for that level. The supervisor cross-references yesterday's sound-level survey, which recorded 94 dB(A) at the drill position, and applies the SLC80 selection table in the controls section: Class 4 earmuffs are issued from the stores trailer, with foam plug doubling required for the two operators within two metres of the rotary hammer. Reverse-alarm audibility is checked against the masking control by trialling the spotter's whistle protocol. Each worker signs the SWMS register, confirming they have received the AS/NZS 1269.3 toolbox refresher within the last twelve months and that baseline audiometry is on file. Mid-shift, a second concrete pump arrives unannounced; the leading hand pauses work, retakes a spot measurement reading 99 dB(A), and amends the SWMS exposure-time control to rotate operators every forty minutes, recording the change and re-signing the document before resumption.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- Code of Practice — Hazardous Manual Tasks
Frequently asked questions
Is noise exposure high risk construction work?
No. Exposure to noise is not one of the activities listed in WHS Regulation section 291, so on its own it does not engage the section 299 SWMS duty. The obligation sits in Part 4.1 (regulations 56–59): once exposure reaches the 85 dB(A) LAeq,8h standard or a 140 dB(C) peak, the PCBU must work down the control hierarchy, provide suitable hearing protectors and run audiometric testing, all of which need auditable evidence. A documented safe system of work is therefore required regardless — and where the noisy task sits inside high risk construction work, this content feeds the SWMS prepared for that activity.
What measurement does a defensible noise assessment need?
Surveys must use a Class 1 or Class 2 integrating sound-level meter compliant with AS IEC 61672, calibrated before and after each survey, with results entered in the site noise register and mapped. Two measurement traps are called out specifically. Reverberant build-up inside plant rooms, tunnels and steel-framed structures pushes levels 6–10 dB above free-field readings, invalidating an earlier assessment. And cumulative dose escalates across sequential tasks that each look compliant in isolation, so exposure has to be tracked per worker per day, not per task.
How do I select the right hearing protector class?
By the SLC80 method in AS/NZS 1269.3, matched to the measured exposure — not by picking the highest-rated muff available. The target is a protected level between 70 and 80 dB(A). Over-attenuation is treated as a hazard in its own right because acoustically isolated workers miss reverse alarms, evacuation tones and verbal warnings, which converts a hearing problem into a struck-by problem. Fit matters as much as rating: broken seals or incompatibility with safety glasses, hard hats and respirators drop real-world attenuation 10–15 dB below the laboratory figure. Above 100 dB(A), plugs plus earmuffs with documented fit-testing are specified.
Does this cover audiometric testing obligations?
Yes. Where hearing protectors are relied on, baseline and annual audiometric testing is required under AS/NZS 1269.4, with results communicated confidentially to the worker. It pairs with AS/NZS 1269.3 training on fitting, care and the limitations of hearing protectors, so workers understand why a badly seated plug is not protection. Records are retained for the worker's working life. The document also sets the exposure-time limits calculated from the measured LAeq using the 3 dB exchange rate, plus signposted hearing protection areas and task rotation, so testing sits inside a programme rather than standing alone.
What do I receive and how is it used day to day?
An editable DOCX template in Microsoft Word format, bought once, containing the state-specific WHS legislation schedule for NSW, VIC, QLD, SA, WA, TAS, NT and ACT, the hazard register with hierarchy-of-control mapping, and a worker sign-on register, pre-start checklist and incident escalation flow. Your own survey figures and noise map go in. The worked example shows the intended rhythm: a recorded 94 dB(A) at the drill position drives Class 4 earmuff selection at pre-start, then an unannounced second concrete pump prompts a spot re-measure at 99 dB(A), a 40-minute rotation limit, and re-signing before work resumes.