If your vehicle fails its MOT, you will be issued a VT30 form and your vehicle will have a “dangerous” or “major” fault. This means that it is not roadworthy and you are not allowed to drive it until the necessary repairs have been made. You will then need to rebook another MOT test once the repairs havebeen completed. It is important to address any issues that caused the failure as soon as possible, as driving a vehicle with dangerous or major faults can result in accidents and put yourself and others at risk.