There are two types of driving assessment offered by each centre:
If a person has a medical condition which affects thought processing skills then a driving ability assessment will be offered. The assessment includes an interview with the assessor (who may be a clinician or driving instructor)and may involve assessment of physical ability, visual assessment ( ability to read a standard number plate from a distance of 20.5 metres and peripheral field screening), cognitive assessment (looking at the way the brain processes information) and a practical on-road assessment. Some centres have an off-road facility for those people who do not have a valid driving licence.
If the person's health condition only results in a physical limitation then a vehicle control trial or car adaptation assessment is usually appropriate. This includes an assessment for specific vehicle modifications which will assist with the control of the car.