The Four Legitimate Triggers for a Referral
Not every performance issue warrants a medical referral — and sending someone for an assessment as a disciplinary tool is exactly the kind of conduct that ends up in the Fair Work Commission. The legitimate triggers are narrower than most HR teams assume.
- Return from significant absence. Any absence longer than four weeks for a physical health condition, or any absence involving a psychiatric admission, warrants a structured assessment before the worker resumes full duties. This is not punitive — it protects both parties.
- Observable safety-critical behaviour. A supervisor has documented specific incidents — near-misses, coordination concerns, cognitive lapses during safety-critical tasks — that raise a genuine question about current capacity. The documentation must exist before the referral is made.
- Role change with elevated physical or cognitive demands. A warehouse picker promoted to a role involving sustained heavy lifting, or a 50-year-old driver moving to a long-haul fleet, may warrant a baseline assessment against the new role's functional demands catalogue before commencing.
- Regulatory requirement. Mining, rail, aviation, and maritime workers are subject to mandatory medical standards. Coal mine workers, for example, must meet Queensland's Coal Mine Workers' Health Scheme requirements at prescribed intervals. These referrals are non-discretionary.
If the trigger is anything other than the above — personal grievance, performance management, or a manager's gut feeling — get advice before making the referral.
What Actually Happens During the Assessment
The assessment has four stages. Most disputes arise when one of these is skipped.
| Stage | What happens | Who provides input |
|---|---|---|
| 1. Brief preparation | Assessor receives the role's functional demands catalogue and a clear referral question | Employer / OHS team |
| 2. Clinical evaluation | History, examination, relevant function tests (grip dynamometry, spirometry, vision, cognitive screen) | Occupational physician or OH nurse |
| 3. Functional matching | Clinical findings mapped against the specific demands: loads lifted, hours sustained, cognitive requirements | Assessor |
| 4. Report with findings | Functional capacity finding, recommended adjustments, review date — no clinical diagnosis disclosed to employer | Assessor to employer and worker |
The functional demands catalogue is not optional. An assessment conducted without a validated catalogue produces findings that cannot be meaningfully applied to the role — and that cannot be defended if challenged.
The Legal Framework You Are Operating Inside
Three Acts intersect every fit for work referral made in Australia, and understanding which one applies at each decision point prevents costly errors.
Work Health and Safety Act 2011 (model law, all jurisdictions except Victoria and WA)
Section 19 imposes a duty on the PCBU to ensure the health, safety and welfare of workers so far as reasonably practicable. This duty is the primary justification for requiring a fit for work assessment when a safety concern exists. Without this documented concern, the referral lacks a lawful basis.
Disability Discrimination Act 1992 (Cth)
Section 15 prohibits discrimination in employment on the basis of disability. An employer who treats a fit for work assessment finding as automatically determinative — without genuinely considering reasonable adjustments — risks a complaint to the Australian Human Rights Commission. The DDA requires the employer to show that no adjustment would remove the safety risk, or that any required adjustment would impose unjustifiable hardship.
Fair Work Act 2009 (Cth)
Section 387 sets out the criteria for assessing whether a dismissal is unfair. If a worker is dismissed following an assessment finding, the Commission will examine whether there was a valid reason, whether the worker was notified and given a genuine opportunity to respond, and whether reasonable adjustments were genuinely considered. An assessment report alone does not satisfy these requirements.
Privacy Act 1988 (Cth) obligations also apply: health information is sensitive information under the Act, and the assessor should provide the employer with a functional capacity finding only — not a clinical diagnosis — unless the worker has provided specific written consent for disclosure.
Acting on the Outcome: Four Possible Findings
A well-structured report will contain one of four findings. Each requires a different employer response.
Fit for full duties
The worker can return to their pre-absence role without modification. Document the finding, notify the worker in writing, and arrange the return date. No further medical action is required unless circumstances change.
Fit with modifications
The worker can perform the role subject to specified adjustments — restricted hours, load limits, equipment provision, task rotation — for a defined period. The employer must assess whether those adjustments are practicable and document the decision. Ignoring the modifications and returning the worker to full duties creates liability under both WHS law and the DDA.
Temporarily unfit — review in X weeks
The worker cannot currently perform the role's demands but the condition is expected to resolve. The employer should place the worker in suitable alternative duties where practicable, manage the absence under the relevant Award or Enterprise Agreement provisions, and schedule the review assessment.
Permanently unfit for the role
This is the most legally sensitive outcome. The employer must genuinely explore redeployment to a suitable alternative role before initiating any termination process. A Fair Work Act s.387 compliant process is then required: written notice of the reason, opportunity to respond, support person, and consideration of the worker's response. Skipping any step risks an unfair dismissal finding.
Safety-Critical Roles: Higher Standards Apply
For roles where incapacity creates catastrophic risk — underground miners, heavy vehicle operators, rail safety workers, process plant operators — the threshold for ongoing fitness monitoring is materially higher than for general office or retail work.
Under Queensland's Coal Mine Workers' Health Scheme, assessments must be conducted at engagement, at specified intervals (5 years under 50, 2 years over 50), and when a worker notifies of a health change that may affect fitness. Failure to maintain this schedule is a regulatory breach independent of any individual incident.
Heavy vehicle operators carrying dangerous goods are subject to the National Heavy Vehicle Accreditation Scheme and must meet the Austroads medical standards for commercial vehicle drivers. The Austroads 2022 edition specifies conditions — epilepsy, obstructive sleep apnoea, insulin-dependent diabetes — that trigger mandatory notification to the relevant licensing authority, not merely an internal review.
For these roles, a fit for work assessment is not a discretionary HR tool. It is a compliance obligation with defined intervals, assessor requirements, and documentation standards. Organisations managing more than 50 workers in safety-critical categories typically need a systematic programme — not ad-hoc referrals when incidents occur.
Common Errors That Invalidate Assessments
After reviewing assessments across multiple industries over 26 years, the same errors appear repeatedly. Each one either wastes the assessment's value or creates new liability.
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No functional demands catalogue provided to the assessor. The assessor cannot match clinical findings to role demands they have never seen. The report becomes a generic health summary, not a fitness determination.
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Ambiguous referral question. "Is John fit for work?" is not a referral question. "Is John fit to perform the duties of a Class 2 vehicle operator as described in the attached functional demands catalogue, with or without reasonable adjustments?" is.
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Clinical diagnosis disclosed in report to employer. The Privacy Act 1988 (Cth) requires that health information be collected only to the extent necessary. A diagnosis is not necessary — the functional finding is. Assessors who routinely include diagnoses in employer copies create privacy breaches that expose both the provider and the employer.
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Acting on the assessment without a process. An assessment finding is evidence, not a decision. The employer still needs to consult the worker, consider adjustments, and document the reasoning before taking any adverse action.
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Using an assessor with no occupational health training. A GP letter saying "fit for light duties" is not a fit for work assessment. It carries no legal weight against a properly conducted occupational assessment.