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Traumatic brain injury claims, how SIRA interprets CTP rules in NSW

If you've suffered a traumatic brain injury in a motor vehicle accident in New South Wales, understanding how SIRA interprets the rules under the Motor Accident Injuries Act 2017 is essential. This article explains how SIRA applies the law to traumatic brain injury claims, including what you can claim, how injuries are assessed, and what to do if you disagree with an assessment.

Current as at 19 June 2026

Traumatic brain injury claims, how SIRA interprets CTP rules in NSW

If you've suffered a traumatic brain injury in a motor vehicle accident in New South Wales, understanding how SIRA interprets the rules under the Motor Accident Injuries Act 2017 is essential. SIRA, the State Insurance Regulatory Authority, plays a key role in determining the eligibility, assessment, and compensation available for such claims. This article explains how SIRA applies the law to traumatic brain injury claims, including what you can claim, how injuries are assessed, and what to do if you disagree with an assessment.

The NSW CTP rules that sit behind this question

Under the Motor Accident Injuries Act 2017, all drivers, passengers, pedestrians, cyclists, and motorcyclists involved in a motor vehicle accident in NSW are entitled to claim compensation through the Compulsory Third Party (CTP) scheme. This includes claims for traumatic brain injuries, which are defined as injuries to the brain caused by a sudden impact or trauma.

SIRA interprets the definition of a traumatic brain injury based on clinical evidence, including medical reports, imaging, and neurological assessments. The injury must result in a measurable impact on the person’s physical or mental capacity. SIRA uses the Motor Accident Guidelines to assess whether the injury meets the threshold for compensation under the CTP scheme.

Practical steps and evidence that usually matter

If you've suffered a traumatic brain injury, it's important to gather and preserve evidence that supports your claim. This includes:

  • Medical records from a registered medical practitioner, including scans, reports, and notes from your treating specialist.
  • A detailed account of the accident, including the date, time, location, and circumstances.
  • Witness statements or contact details of anyone who saw the accident.
  • Photographs of the accident scene, vehicle damage, and any visible injuries.
  • Income records, if you've been unable to work due to your injury.

SIRA requires that all claims be supported by medical evidence that demonstrates the injury was caused by the accident and that it has resulted in a measurable loss of function. This is especially important for traumatic brain injuries, which can be complex to assess and may require specialist input.

Time limits, disputes and when to seek advice

You have a limited time to make a claim under the CTP scheme. Generally, you must notify your insurer within 90 days of the accident, although this can vary depending on the circumstances. If you fail to notify your insurer within this timeframe, your claim may be denied.

If you disagree with SIRA’s assessment of your injury or the amount of compensation you’re entitled to, you can request a review. SIRA has a process for reviewing claims, and you may also seek independent medical advice to challenge the assessment. It’s important to act quickly, as delays can affect your ability to dispute a decision.

If you're unsure whether your claim meets the criteria for compensation, or if you need help navigating the claims process, it’s advisable to seek legal advice. A qualified solicitor can help you understand your rights, prepare your claim, and challenge any unfair decisions.

When to seek advice

If you're unsure whether your traumatic brain injury qualifies for compensation under the CTP scheme, or if you need help with the claims process, it’s important to seek advice from a qualified solicitor. They can help you understand your rights, prepare your claim, and challenge any unfair decisions.

How to request contact about your circumstances

Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.

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