Permanent Impairment Threshold and Documentation Checklist
Where a person's only injuries resulting from the accident are threshold injuries, weekly benefits and treatment and care generally cease after 52 weeks (ss 3.11 and 3.28).
Under New South Wales law, a claimant must prove their injury meets the 10% whole person impairment threshold to qualify for permanent impairment compensation under the Motor Accident Injuries Act 2017. This threshold determines whether an injury is severe enough to warrant ongoing benefits or damages. In the Blue Mountains and Nepean regions, claimants must document their injury in line with the SIRA Motor Accident Guidelines to meet this standard.
What Is the Legal Definition of Permanent Impairment?
The 10% threshold is defined as a permanent impairment that significantly affects a person’s physical or mental capacity. This includes injuries like spinal nerve-root damage, limb loss, or chronic pain that impacts daily activities. Under the Motor Accident Guidelines, a spinal nerve-root injury must produce neurological signs beyond radiculopathy (nerve-related pain) to qualify. For example, a claimant with a 10% impairment due to a herniated disc requiring surgery would meet the threshold.
Documentation Checklist for Permanent Impairment Claims
To prove a claim, injured persons must provide:
- Medical records showing the injury’s cause, treatment, and prognosis.
- Expert opinion from a medical practitioner confirming the 10% impairment rating.
- Evidence of ongoing impact, such as reduced mobility, chronic pain, or inability to work.
- Accident details including the date, location, and circumstances.
- Income records to demonstrate lost earnings or future loss.
SIRA requires these documents to assess whether the injury meets the threshold. For instance, a cyclist in the Blue Mountains who suffered a 10% impairment after a collision would need medical reports confirming the injury’s severity.
How SIRA Assesses Permanent Impairment
SIRA evaluates injuries using the Motor Accident Guidelines, which outline how to calculate impairment percentages. A claimant must show that their injury:
- Meets the 10% threshold under the guidelines.
- Results from the motor accident (not a pre-existing condition).
- Is permanent and not likely to improve.
In the Nepean area, a pedestrian with a 10% impairment from a car accident would need a medical report linking the injury to the incident. SIRA may also request independent medical assessments to verify the claim.
Common Pitfalls in Documentation
Claimants often fail to:
- Provide detailed medical records showing the injury’s progression.
- Include witness statements or photographs of the accident scene.
- Document ongoing treatment or medical expenses.
- Submit income evidence to support lost earnings.
For example, a driver in the Blue Mountains who missed work due to a 10% impairment but failed to provide pay slips might lose benefits.
Time Limits and When to Seek Advice
CTP claims must be submitted within 52 weeks of the accident, though this period may extend for complex cases. If a claimant’s injury exceeds the 10% threshold, they must act quickly to gather evidence. Disputes over the threshold are resolved by SIRA, which may request independent expert opinions.
Next Steps
If your injury meets the 10% threshold, ensure all documentation aligns with SIRA’s requirements. Missing evidence can delay or disqualify a claim. For tailored advice, complete the quick, no obligation enquiry form to discuss your circumstances.