For example, have you equipped your already registered vehicle with an accessory that requires registration or have you changed the vehicle category? You must report such changes to the registration office immediately.

The expiry of the operating license is regulated in § 19 Para. 2 of the Road Traffic Licensing Regulations (StVZO).

Driving without or with an expired operating license is an administrative offence; the registration office can also prohibit operation and cancel the license plate. In addition, liability insurance cover may lapse if the operating license or individual approval has not been issued.