The NCT test consists of inspection of 61 aspects of the vehicle operation. 118 points are inspected, the failure of any is subject to a mandatory return visit. The principle functions concerned are:
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The braking system
- Tyres and wheels
- Lighting and signalling
- Suspension components
- Emission and sound level
- Steering
Power train
- Visibility
- The identification of the vehicle
- The bodywork
- Electrical system
Among these functions, three constitute the most common cause of failure to pass the NCT: front suspension, lighting, braking and wheels.
The current failure rate for the NCT is 50%