Certificate of Fitness (NSW Motor Accidents)

After a motor vehicle accident in NSW, insurers use the Certificate of Fitness to understand your injury, your capacity for work or usual activities, treatment you are receiving, and what you reasonably need next. It is not a “sick note” in the school sense — it is a structured legal/clinical document that drives approvals and payments.

If the certificate is vague, late, or inconsistent with your treating notes, claims stall. If it is specific, dated, and aligned with examination findings, case managers can say yes faster.

First certificate — medical practitioner only

The first Certificate of Fitness after a motor crash must be completed by a registered medical practitioner (usually your GP or a specialist) during a face-to-face or telehealth consultation, following the rules on the current SIRA form and guidance.

That first certificate sets the baseline: diagnosis, clinical findings, capacity, treatment plan, and time off work if applicable.

Later certificates — doctor, physiotherapist, or psychologist

Subsequent certificates may be completed by your treating physiotherapist or psychologist on the designated SIRA form for motor accidents, provided they are actually treating you for the relevant injury and are registered appropriately. They certify within their scope — for example, a physio focuses on musculoskeletal capacity; they may need to send you back to a doctor if multiple body systems or diagnoses need a single coordinated certificate.

SIRA publishes the exact form names and rules; they have changed over time, so always use the current version linked from sira.nsw.gov.au.

What good certificates include

• Accurate dates and clear periods of capacity (not just “unfit indefinitely”).
• A diagnosis or problem list that matches imaging and exam findings where available.
• Functional restrictions described in plain language (lifting, sitting, driving, sleep).
• Treatment that is reasonable and linked to the accident injury.
• A sensible plan for review — insurers expect progression, not copy-paste forever.

Overlapping certificates

If two certificates cover the same period, SIRA guidance explains which one takes precedence. In short: do not let multiple practitioners issue conflicting capacity statements for the same dates without talking to each other — that is how insurers pause treatment.

How CTP Doctor helps

Our CTP-experienced doctors take a proper history, examine, and write certificates that match the clinical record. We coordinate with physio and psychology so allied health certificates do not contradict medical findings.