noun
notification of change; change report
Official document or form used to notify an authority of a change in registered information (address, name, etc.). Often an abbreviation of longer terms like 変更届出書. Compare 在留届, which is a notification of residence.
See also: 在留届
引っ越したので、市役所に変更届を提出した。
I moved, so I submitted a notification of change to the city office.
変更届の用紙は窓口で受け取れます。
You can get the change notification form at the counter.