We move out of Yokohama-shi, what should I do with sign (license plate) of motor bike?

Please return the license plate by one of the following methods (1) or (2).
（１） If you want to register at a municipal office in the New Address area after scrapping the car in Yokohama City
Please dispose of the car at the window of the ward office where the sign (license plate) was issued, and submit the “Junk Car Declaration Reception Form (Junk Car Certificate)” to the municipalities in the new Address area to complete the procedure.
（２） When changing the Address with the sign (license plate) attached without scrapping
No procedures are required in Yokohama City. Please bring your signing certificate and sign (license plate) and submit it to the municipalities in the new Address area. Collect signs (license plates) at the municipalities to which you submit.
In some municipalities, it is not possible to register Address for undisused vehicles. In that case, as shown in (1), please dispose of the car first at the ward office where the sign (license plate) was issued. Please check with the municipalities in the new Address area in advance.
(Note) Motorcycles with a displacement of more than 125cc (two-wheeled light motor vehicles and two-wheeled small cars) will be handled by the Kanagawa Transportation Bureau, and light motor vehicles with three or more wheels will be handled by the light motor vehicles Inspection Association Kanagawa Office. Please contact each institution for documents and procedures required for the procedure.

Procedures for motorized bicycles, etc.
Kanagawa Transportation Bureau (outside site)
light motor vehicles Inspection Association Kanagawa Office (outside site)