In many industries, employees are exposed to high levels of workplace noise that can lead to hearing loss over time, impacting an individual’s ability to hear clearly and communicate effectively.

Occupational noise-induced hearing loss (NIHL) is a significant workplace health concern, and employers have a responsibility to protect their workers from these risks.  Australian regulations require certain employers to complete mandatory noise monitoring activities or risk heavy fines for non-compliance.

Understanding noise exposure in the workplace  

Excessive noise exposure is a common hazard in industries such as construction, mining, manufacturing and transportation. 

In Australia, prescribed workplaces must provide hearing assessments for workers exposed to high noise levels. A prescribed workplace is one where workers experience:  

• A representative daily noise dose of ≥85 dB(A) over an eight-hour work period  
• Noise peaks of ≥140 dB(lin) at any time  

For businesses operating in New South Wales, Queensland and Western Australia, compliance with noise regulations is crucial to avoid legal penalties and, more importantly, to protect employees from long-term hearing damage.  

Common noise risk factors

Your workplace may exceed safe noise levels if:

• Employees raise their voices to communicate at 1 metre distance.
• Machinery or tools like grinders, saws or compressors are in use.
• Vehicles or equipment produce constant high noise levels (e.g., mining, construction).
• Workers use hearing protection due to loud conditions.

Audiometric testing: the key to noise risk management  

Audiometric testing is mandatory for prescribed employers and helps to track changes in workers’ hearing over time. The testing process follows a structured timeline:  

• Baseline (reference) test – conducted within three months of an employee starting a role with noise exposure risks. Workers must undergo 16 hours of quiet time before the assessment. 
• Monitoring tests – conducted every two years (or more frequently if required) to detect early signs of hearing loss. Unlike the baseline test, quiet time before testing is not mandatory.  

Employers must ensure that these tests are conducted at approved locations with trained audiometry operators. 

Screening audiometry for workplace safety  

Screening audiometry, also known as pure tone audiometry, is a popular test run often run at pre-employment stage during the recruitment process. It is a basic hearing test that determines whether an employee meets a specific hearing standard for their job. While not legally required, many employers choose to include this test as part of pre-employment medical screenings, particularly in industries where hearing ability is critical (e.g., the rail sector).  

Legal responsibilities and compliance  

For businesses operating in prescribed workplaces, regulations mandate that employers must provide:  

1. Audiometric testing for workers frequently exposed to noise above the exposure standard.  
2. Personal protective equipment (PPE) to reduce the risk of occupational noise-induced hearing loss.  
   
   

Failing to comply with these regulations not only puts employees at risk but can also lead to legal consequences and reputational damage for businesses. Employers should establish a structured noise management plan that includes periodic assessments and preventive measures.  

Next steps for employers  

You need audiometric testing if noise exposure reaches:

• 85 dB(A) averaged over 8 hours
• 140 dB(C) peak noise

You can measure noise levels with:

• Noise Level Apps & Noise Dosimeters – Use a basic decibel meter app or personal device to measure noise exposure.
• Professional Noise Assessment – Hire an Occupational Hygienist to conduct a professional noise assessment.

Your workplace may exceed safe noise levels if:

• Employees raise their voices to communicate at one metre distance.
• Employees have a temporary reduction in hearing or ringing in the ears after leaving work for the day.
• Machinery or tools like grinders, saws or compressors are in use.
• Vehicles or equipment produce constant high noise levels (e.g., mining, construction).
• Workers use hearing protection due to loud conditions.

3. Conduct a workplace noise assessment

• If noise risks exist, conduct a formal noise assessment as per WHS regulations.
• This should be done by a qualified professional every five years or if conditions change.

4. Implement hearing testing (if required)

• Baseline test within three months of an employee starting in a noisy role
• Ongoing testing every two years for continued exposure

If you are unsure whether your workplace requires occupational noise monitoring, seek expert guidance. Conducting noise assessments can help determine your workplace’s exposure levels and ensure compliance with legal requirements. Additionally, consider implementing automated workflows to manage periodic medical screenings efficiently.  

How we can help

We provide comprehensive occupational noise management solutions to help businesses maintain safe and compliant workplaces. Our expert team supports employers with noise assessments, pre-employment medicals, audiometry testing and compliance monitoring. With a network of trained audiometry providers, we make the process seamless, ensuring that employees receive timely hearing assessments.  

Learn more about how we can help your business navigate the challenges outlined in this blog:  Explore our solutions at www.dhs.net.au.