The official name of the procedure we call "new" is the "Application for Certificate of Eligibility" procedure.

This application is required for those who wish to enter Japan other than short-term stays.

The "Certificate of Eligibility" issued after you apply and get permission is a document that certifies the content of your activities in Japan and is issued by the Ministry of Justice.

This applies to foreigners who plan to stay in Japan for the medium to long term, and activities not listed in the Certificate of Eligibility are not permitted.

A valid passport is required to enter Japan.

Obtain a Certificate of Eligibility in advance and complete the procedure at the Japanese embassy or consulate in the country of residence of the foreigner.

On top of that, it is common to get a visa.

After entering Japan, the status of residence will be granted based on the contents of the Certificate of Eligibility.

The Certificate of Eligibility is valid for 3 months, so be sure to enter Japan as soon as you receive it.

The official name of the "change" procedure is "application for permission to change status of residence".

This is a procedure required when changing from the currently accepted status of residence.

It is practically the same as obtaining a new status of residence, so be sure to prepare clarification materials and proof materials before applying.

The official name of the "extension" procedure is "application for permission to renew the period of stay".

Since the period of stay is set at the time of permission, it is necessary for the Immigration Bureau to complete the so-called renewal procedure before the expiration date.

If you pass the renewal deadline, you will be illegally staying (overstay), so be prepared early.

You can apply for renewal from about 3 months before the expiration of your period of stay.