For motor accidents

The certificate of fitness helps the insurer develop a treatment plan with the person so they can recover following a motor accident injury.

What is it?

The certificate of fitness is used by the insurer to make decisions about a person's fitness for work (whether or not they are employed, unemployed or retired) because it provides a clear indication of recovery and the rehabilitation assistance the person may require.

The certificate of fitness tells the insurer:

  • the person's name and details
  • the type of injuries and date of accident
  • what treatment is planned
  • how the injuries affect the person's ability to do normal activities including work
  • the details of the medical practitioner who completed the assessment including their provider number.

Apart from our website, the certificate of fitness is available from all insurers. Most medical centres and hospitals will also have the certificate of fitness available for you to access.

Your role

As the registered medical practitioner, you are responsible for completing the doctor's part of the certificate of fitness. It should identify a clear medical diagnosis using acceptable medical terminology and identify any reasonable and necessary treatment.

Other health professionals (eg a physiotherapist) may give information to you, however they are not allowed to complete the certificate of fitness themselves.

When you assess a person's injuries and choose a treatment plan, you need to estimate how long before the person can return to normal activities or when they should be assessed again.

You should not issue a certificate of fitness that exceeds a 28-day period without providing special reasons why. See section 3.15(4)(a) of the Motor Accidents Injuries Act 2017 for more information.

For injuries that resolve quickly, it may mean that only one assessment is required. However for more serious injuries you may need to complete multiple certificates over the time it takes the person to recover.

The injured person's role

The person injured is responsible for providing the insurer with an initial certificate of fitness and their CTP claim form(s). They are also responsible for maintaining a valid certificate of fitness throughout their recovery.

Weekly benefits may be suspended if a valid certificate of fitness is not received by the insurer. See section 3.15(6) for more information.

It is important that the person injured attends all appointments with you and that you both remember to have the certificate of fitness completed each time.

This short video helps explain the certificate of fitness to the person injured:


The person injured should sign the consent section of the certificate of fitness to enable communication about their injury between treating health practitioners, the insurer, employer and other relevant parties.

Further information


Sometimes there can be disputes about compensation. If there's a dispute, there's help available. Our motor accidents injury disputes section has more information.