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Documenting Injuries from Modified Vehicles in NSW CTP Claims

This article explains how to document injuries caused by modified vehicles in NSW CTP claims. It outlines the evidence needed to prove the link between the modification and the injury, key documentation steps, and time limits for claims under the Motor Accident Injuries Act 2017.

Current as at 17 October 2026

Documenting Injuries from Modified Vehicles in NSW CTP Claims

If you've been injured in a motor vehicle accident involving a modified vehicle, such as a car fitted with hand controls or adaptive driving aids, you need to prove how the modification contributed to your injury. Under New South Wales law, the Motor Accident Injuries Act 2017 (MAIA) governs claims for injuries caused by vehicle modifications. This article explains what evidence matters, how insurers assess claims, and steps to take when documenting injuries from modified vehicles.

Proving the Link Between Modifications and Injuries

To claim compensation for injuries caused by a modified vehicle, you must show that the modification either directly caused or contributed to your injury. For example, if a car with faulty hand controls led to a crash, the modification may be a factor. Under the MAIA, insurers assess whether the modification was a 'contributing cause' of the injury. This requires:

  • Medical evidence showing the injury and its connection to the modification
  • Vehicle modification records (e.g., installation dates, manufacturer details)
  • Accident reports detailing how the modification may have failed or caused the incident
  • Witness statements or expert opinions linking the modification to the injury

Key Documentation Steps for Modified Vehicle Claims

  1. Medical records documenting the injury, including diagnoses and how the modification may have worsened the condition
  2. Vehicle inspection reports from mechanics or specialists confirming the modification's condition and function
  3. Photos of the modified vehicle showing the modification's state before the accident
  4. Witness statements from drivers, passengers, or bystanders describing the modification's role in the incident
  5. Expert reports from engineers or medical professionals explaining the modification's impact on the accident

For example, a cyclist using a car fitted with hand controls may need to show that the modification failed to function properly, leading to a loss of control. Medical records would need to link the failure of the modification to the injury.

How NSW CTP Insurers Assess Modified Vehicle Claims

NSW CTP insurers evaluate claims by considering:

  • Whether the modification was legally installed and maintained
  • Whether the modification was a 'contributing cause' of the injury
  • Whether the injury meets the threshold injury criteria under the MAIA (e.g., soft tissue injuries with specific neurological signs)

Insurers may dispute claims if they argue the modification did not directly cause the injury. In such cases, expert evidence is often critical to establish the connection.

Time Limits and When to Seek Advice

You have 52 weeks from the accident date to claim statutory benefits like weekly payments or treatment costs under the MAIA. After this period, you may still pursue a common law damages claim, but the process is more complex. If your claim involves a modified vehicle, seek legal advice early to:

  • Challenge an insurer's refusal to accept the modification as a contributing cause
  • Navigate disputes over the vehicle's modification history
  • Ensure all evidence is properly preserved

Next Steps

Documenting injuries from modified vehicles requires careful attention to the connection between the modification and the injury. If you're unsure whether your claim meets the criteria, contact a legal professional for an assessment. Every claim depends on its own facts.

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

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