Introduction: Pre-Employment vs WHS Baseline—Understanding the Distinction

Audiometric testing can occur at two distinct points in a worker’s employment: before employment commences (pre-employment testing) or shortly after employment commences (WHS Regulation 58 baseline). While these tests may be conducted using similar procedures, they serve different purposes and have different legal status.

For employers, the distinction is important. Pre-employment testing is sometimes optional or discretionary; WHS baseline testing is mandatory for noise-exposed workers. For workers, the distinction matters because pre-employment testing may not receive the same privacy protections or regulatory oversight as WHS testing.

This guide explains when pre-employment testing is required, how it differs from WHS baseline testing, and how to integrate both into a comprehensive audiometric program.

What Is Pre-Employment Audiometric Testing?

Definition

Pre-employment audiometric testing is a hearing test conducted before employment commences or, in some cases, before the worker begins work in a specific role. It is typically conducted as part of a pre-employment medical assessment or occupational health screening.

Purpose

The purposes of pre-employment audiometric testing include:

• Establishing a baseline of the applicant’s hearing before they are exposed to occupational noise in the new role
• Identifying any pre-existing hearing loss so it is not attributed to occupational exposure during employment
• Assessing whether the applicant is medically fit for the role
• Creating a baseline that may be relevant in the event of future hearing loss claims (establishing that loss did not occur in the new employer’s environment)

Who Typically Conducts Pre-Employment Testing

Pre-employment testing is often conducted by:

• Occupational health providers or occupational health services
• Occupational physicians or nurses with audiometric capabilities
• Third-party medical assessment companies contracted to conduct pre-employment medicals
• Sometimes accredited audiometric testing providers

Quality varies significantly. Some pre-employment testing is conducted by qualified audiometrists in compliant sound booths. Other testing is conducted by health professionals without specialized audiometry training in non-compliant environments.

When Is Pre-Employment Audiometric Testing Required?

The General Rule: Not Mandatory Under WHS Law

Pre-employment audiometric testing is not mandatory under Regulation 58 or equivalent state regulations. Regulation 58 requires WHS baseline testing, which may occur shortly after employment commences, not before.

However, pre-employment testing may be required or recommended in specific circumstances:

Industry-Specific Mandates

Mining Industry: Many major mining companies require pre-employment audiometric testing for all applicants entering noise-exposed roles. This is often a condition of employment and insurance. FIFO (Fly-In Fly-Out) workers in mining almost always undergo pre-employment testing.

Defence and Military: Defence organizations and military employers often mandate pre-employment audiometric testing as part of medical screening and fitness assessments.

Heavy Manufacturing and Refining: Some large manufacturers and oil refineries require pre-employment testing for roles in high-noise areas, particularly for safety-sensitive positions.

Utilities and Infrastructure: Some large utilities companies (electricity, water) require pre-employment testing for operations and maintenance roles involving noise exposure.

Individual Employer Discretion

Beyond industry-specific practices, individual employers may choose to require pre-employment audiometric testing as a risk management measure. This might be appropriate for:

• Applicants for safety-critical roles
• Roles with exceptionally high noise exposure
• Roles requiring communication in high-noise environments (where hearing acuity is critical)

When Pre-Employment Testing Is Recommended (But Not Required)

Best practice suggests pre-employment testing is valuable even if not mandatory, particularly when:

• An applicant will be immediately exposed to noise on commencing employment
• The employer wants to establish pre-employment hearing status for future reference
• The role is high-noise and the employer wants to maximize baseline documentation

How Pre-Employment Testing Differs from WHS Baseline Testing

Purpose and Legal Basis

• Pre-employment: Employer’s risk management; not mandated by WHS law; serves medico-legal function of establishing pre-existing conditions
• WHS baseline: Mandatory under Regulation 58; legal obligation; serves regulatory compliance and worker health monitoring function

Timing

• Pre-employment: Before employment commences or before commencing in a specific role
• WHS baseline: Within 3 months of commencing employment in the noise-exposed role

Standards Compliance

• Pre-employment: May or may not comply with AS/NZS 1269.4:2014; often less rigorous than occupational audiometry standards
• WHS baseline: Must comply with AS/NZS 1269.4:2014; specifically designed for occupational audiometry

Environmental Standards

• Pre-employment: May be conducted in non-specialized environments; sound booth quality varies
• WHS baseline: Must be conducted in a certified sound booth meeting ambient noise limits

Regulatory Oversight

• Pre-employment: Not directly regulated under WHS law; employer’s responsibility for quality varies
• WHS baseline: Directly regulated; regulators can inspect and enforce compliance with standard

Use of Results

• Pre-employment: Used to support hiring/fitness decisions; establishes pre-existing hearing status; may be used in legal disputes
• WHS baseline: Used as permanent reference for occupational hearing loss monitoring; must be retained for 30 years

Medico-Legal Aspects of Pre-Employment Testing

Establishing Pre-Existing Conditions

A key purpose of pre-employment audiometric testing is to establish that any hearing loss detected in future is due to occupational exposure, not pre-existing conditions or external factors. If an applicant with significant pre-existing hearing loss is hired, and later claims occupational NIHL, the employer has documentation that the loss was pre-existing.

This is valuable risk management, particularly for applicants with history of exposure in previous roles or recreational noise exposure (e.g., musicians).

Duty of Disclosure

An applicant undergoing pre-employment medical testing has a general obligation to be honest about their medical history. If asked about prior hearing assessments or hearing problems, dishonesty could affect the validity of the pre-employment test.

Privacy Considerations

Pre-employment medical information (including audiometric test results) is sensitive personal health information. It should be:

• Collected and stored in accordance with the Privacy Act 1988 (Cth) and state health privacy laws
• Kept confidential and separate from other employment records
• Used only for the stated purpose (fitness assessment)
• Not disclosed to other employees or used for purposes beyond the hiring decision

Fitness-for-Duty Assessments

If pre-employment testing reveals significant hearing loss, can the employer refuse to hire the applicant? This depends on:

• Whether the role genuinely requires intact hearing (e.g., communication in high-noise environment)
• Whether hearing loss creates a genuine safety risk
• Whether reasonable accommodations could allow the applicant to perform the role safely

Simply refusing to hire because of hearing loss without assessing actual fitness for the specific role may expose the employer to disability discrimination claims under relevant state discrimination laws.

Integrating Pre-Employment Testing with WHS Baseline Testing

The Ideal Approach: Single Test Serving Both Purposes

In a well-designed occupational health program, the pre-employment audiometric test and the WHS Regulation 58 baseline test are often the same test—conducted shortly before or shortly after employment commences, complying with AS/NZS 1269.4:2014, in a certified sound booth by a qualified audiometrist.

This single test serves multiple purposes:

• Establishes pre-employment hearing status (pre-employment function)
• Serves as the mandatory WHS baseline (regulatory requirement)
• Reduces testing burden and cost for the employee
• Ensures the baseline meets rigorous occupational audiometry standards

Practical Implementation

• Conduct the test as part of pre-employment or induction medical assessment
• Ensure the provider complies with AS/NZS 1269.4:2014
• Use a certified sound booth
• Have the test administered by a qualified audiometrist
• Ensure the 14-hour quiet period requirement is met
• Retain the results as both the pre-employment baseline and the WHS regulatory baseline
• Schedule monitoring tests at 2-year intervals from this baseline date

Industry-Specific Pre-Employment Testing Mandates

Mining

Major mining companies, particularly those with FIFO operations, nearly universally require pre-employment audiometric testing. This reflects the industry’s mature approach to occupational health and the high insurance requirements for noise-exposed mining workers.

Defence

Defence organizations mandate audiometric testing as part of medical fitness assessments, particularly for roles in or near high-noise environments (aviation, naval operations, weapons training).

Construction

Large construction companies often require pre-employment testing for workers in high-noise roles, though this is not universal across the sector.

Manufacturing and Refining

Large manufacturers and refineries with mature safety cultures typically require pre-employment testing for new hires in noise-exposed roles.

Hospitality (Venues with Amplified Music)

Some large entertainment or hospitality venues are beginning to implement pre-employment audiometric testing for staff in high-noise areas (DJ booth, live music venues), though this is still emerging practice.

Cost and Practical Considerations

Cost

Pre-employment audiometric testing typically costs $100–$250 per test, depending on provider and location. When integrated with other pre-employment medical assessments, it may be bundled at a lower per-test cost.

Timing and Scheduling

Pre-employment testing is typically scheduled at the pre-offer or post-offer stage of hiring. Timing must account for:

• The hiring timeline (some companies want testing completed before final job offer; others conduct it after offer)
• The applicant’s availability for testing
• The testing provider’s availability
• The need for the 14-hour quiet period before testing

Communication to Applicants

Applicants should be informed that pre-employment testing is part of the medical assessment process, what it involves, how results will be used, and privacy protections. This reduces anxiety and ensures cooperation during testing.

Internal Links: Pre-Employment and Beyond

• WHS audiometric testing requirements across Australia
• Baseline vs monitoring tests explained in detail
• Mobile on-site audiometric testing — bringing testing to your hiring process
• Cost and budgeting for audiometric testing

Conclusion

Pre-employment audiometric testing is not mandatory under WHS law but is valuable risk management in certain industries (mining, defence, manufacturing) and for high-noise roles. It establishes pre-existing hearing status and supports medico-legal protection.

The ideal approach integrates pre-employment testing with WHS baseline testing—a single, compliant test conducted by a qualified audiometrist in a certified sound booth, serving both pre-employment fitness assessment and regulatory baseline purposes.

For employers in high-noise industries, implementing pre-employment audiometric testing (if not already standard practice) strengthens the overall occupational health program and provides comprehensive documentation of workers’ hearing status from the beginning of employment.