Occupational hearing screening is a vital shield against noise-induced hearing loss, says audiologist
DR ANNEMAREE DALEY.
In today’s bustling work environment, many employees are routinely exposed to high noise levels. While the ambient sounds of machinery or construction might be part and parcel of their daily grind, a dangerous, insidious threat looms: noise-induced hearing loss (NIHL).
To combat this, Australia has made strides in instituting robust occupational hearing screening programs aimed at safeguarding workers’ auditory health. But what exactly is occupational hearing screening, and why is it essential?
Understanding screening
Occupational hearing screening, or audiometric testing, is a systematic approach to measuring an employee’s hearing thresholds. By assessing thresholds, specialists can identify declines in hearing ability over time, particularly those resulting from workplace noise exposure.
The most common method is pure-tone audiometry, which helps establish a worker’s baseline hearing level on starting a job with noise-related risks. Periodic monitoring then catches threshold shifts before they escalate into irreversible damage.
The goals of screening are clear:
-Establish a reference test to create a baseline hearing profile when employees initiate work in noisy conditions.
-Conduct regular monitoring assessments to identify early signs of hearing deterioration.
-Gather data to evaluate the efficacy of engineering, administrative, or protective measures implemented to manage noise exposure.
Why prioritise screening?
- Prevention of NIHL: Hearing impairment often develops gradually and, regrettably, can become irreversible. Implementing early detection practices empowers employers to intervene by reducing noise exposure or enhancing protective measures before permanent damage occurs.
2. Legal and regulatory compliance: Employers in Australia must adhere to Work Health and Safety (WHS) laws, which require them to proactively manage noise risks. Certain conditions necessitate audiometric testing, and non-compliance brings significant penalties and potential exposure to workers’ compensation claims.
3. Worker welfare and safety: Ramifications of untreated hearing loss extend beyond the individual; they can deter communication, compromise mental health, and diminish workplace safety, especially when employees need to hear warnings for imminent dangers. Proactive hearing screening ensures timely support for affected workers.
4. Financial incentives: Preventing hearing loss doesn’t just protect employees; it also significantly cuts costs. By mitigating the risks and enhancing workplace safety, employers can reduce expenses related to workers’ compensation claims, lost productivity, and potential healthcare costs.
5. Effective risk management and monitoring: Regular hearing assessments allow employers to monitor auditory health trends, assessing if noise controls (engineering solutions, administrative strategies, personal protective equipment) remain effective. This ongoing process encourages continual improvement in workplace safety standards.
Regulatory framework
The foundation of Australia’s approach lies in its WHS laws. These regulations, while uniformly adopted, have varying implementation dates across states and territories. Key standards include a noise exposure standard set at an average of 85 dB(A) over an eight-hour shift, and compliance with the Australian Standard AS/NZS 1269.4:2014, outlining best practices for audiometric testing. Model WHS Regulations, specifically Regulation 58, say employers must conduct audiometric testing for workers frequently required to use personal hearing protection due to excessive noise exposure. Essential elements of this regulation include:
•A baseline hearing test within three months of an employee starting work in a noisy environment.
• Follow-up tests at least every two years thereafter, with employers responsible for organising and paying for assessments.
State variations
Each state and territory integrates these regulations in ways suited to their unique labour environments. For instance:
• NSW mandates that from 1 January 2024, employers must conduct hearing tests for workers regularly using hearing protection, with existing workers required to be tested by 1 January 2026.
• WA aligns closely with these requirements but also mandates test results be maintained in records for at least two years.
• Queensland has similar stipulations, with new regulations taking effect by 29 July 2025, reinforcing the importance of sound occupational health practices.
Occupational hearing screening is not optional; it forms a legally mandated, evidence-based cornerstone of noise risk management in Australian workplaces. It helps protect workers’ health and safety, supports legal compliance, reduces long-term costs, and helps maintain productivity.
Because rules vary slightly by state/territory, it’s essential for each employer to check with their WHS regulator, refer to AS/NZS standards, and implement a robust hearing conservation program.
For businesses seeking expertise in employee occupational hearing screening, the Australasian College of Audiometry offers an Occupational Audiometry Course comprising a two-day face-to-face workshop and online learning module. It provides skills and knowledge in line with AS/NZS 1269.4:2014 Occupational Noise Management – Auditory Assessment Standards. See auca.edu.au/
ABOUT THE AUTHOR: Dr Annemaree Daley is an educator with the Australasian College of Audiometry.
