If a car is written off by an insurance company, they will usually tell DVLA so that a ‘VIC marker’ (Vehicle Identity Check marker) can be put on the vehicle record.
If you own or buy the car, having a VIC marker means you can’t get a replacement registration certificate and you won’t be sent the V11 vehicle licence reminder you use to renew your tax disc.
To remove the VIC marker the car needs to pass a VIC test.
The VIC test compares the details DVLA has about the car against the car itself. It takes place at a VOSA (Vehicle and Operator Services Agency) test centre.