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更新日:2020年10月1日

Let’s Make My Number Card

Part III Electronic Certificate on My Number Card

My Number Card has an electronic certificate. By using this electronic certificate, administrative procedures can be applied online from home PC. There are two types of electronic certificates, each has a password: Electronic Certificate for User Identification and Electronic Certificate for Signature.

Electronic Certificate for User Identification

Mainly used when logging into the My Number portal and obtaining certificate through convenience store. Certificate validate identity of the person who is logging in. Password is a four-digit number.

Electronic Certificate for Signature

Mainly used when making electronic applications such as e-Tax . Certificate validate that the electronic document was made and sent by the user. The password is 6 to 16 alphanumeric characters.

Validity

Validity of electronic certificate is in principle, until the user’s 5th birthday following the date of issuance. However, Electronic Certificate for Signature will be invalid if the address, name, date of birth, or gender change due to moving or marriage. In addition, the validity will expire along with the expiration of the My Number Card validity. For foreign nationals, expiration dates vary with their immigration status.

Renewal

Renewal of electronic certificate can be applied from three months before the expiration date.

Note

Password will be locked if an incorrect password is entered three times consecutively for Electronic Certificate for User Identification, five times for Electronic Certificate for Signature. Lock cancellation is necessary at the municipality which issued electronic certificate. Visit the Japanese Public Key Infrastructure portal site at www.jpki.go.jp/ for details.

Supervising Section

Residents Support Section, Shiba Regional City Office

Minato Call - City Information Service

Tel: 03-5472-3710

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