Category B is one of the 4 main categories of write-offs:
A ‘Cat B’ is not a repairable vehicle. The vehicle cannot be used again but non-structural and roadworthy parts and components can be recovered for use in other vehicles. Parts taken from the written-off vehicle must not be critical components with important safety functions.
A Category B vehicle write-off is a vehicle which has been damaged beyond economical repair, usually with major structural damage. In the UK the DVLA (Driver and Vehicle Licensing Agency) will require “Notification of Destruction” but parts can be removed and sold on.
In Ireland this vehicle would have to be disposed of in an authorised treatment facility and have end of life “certificate of destruction” issued and the vehicle then becomes End of Life (ELV).