Wheel/tyre combinations from Volkswagen are basically to be differentiated into Volkswagen Genuine Parts or Volkswagen Accessories – you can choose from both.
When you buy a Volkswagen, or one is delivered to you, you will be given a Certificate of Conformity (CoC). This contains a list of all approved wheel/tyre combinations that are permitted for your exact model and its engine system. This always refers to Volkswagen Genuine Parts, as they are used exclusively in new vehicles.
The Volkswagen Accessories Wheels expand the offer for a (subsequently) individually designed Volkswagen. With regards to the accessories items, the specific general operating permit is what’s important: They explicitly list all the vehicles for which the particular accessory or rims are approved. Registration by a testing station, such as an MOT facility, is not required in either case.