The law concerning card-substitute electronic records—essentially adding My Number Card functions to smartphones—has been promulgated. It is an amendment to the Act on the Use of Numbers to Identify a Specific Individual in Administrative Procedures (June 7, Reiwa 6 Act No. 46 〔Article 3〕).
III. Amendments to the Act on the Use of Numbers to Identify a Specific Individual in Administrative Procedures
1 Matters Stated on Individual Number Cards and Identity-Verification Measures
Gender is removed from the matters printed on an Individual Number Card. When a party implementing Individual Number administrative operations receives an Individual Number for processing operations that use gender information and is shown an Individual Number Card as an identity-verification measure, it must also electronically verify the gender information recorded on the card. (Article Two, paragraph Seven, and the proviso to Article Sixteen)
2 Card-Substitute Electronic Records
(i) A “card-substitute electronic record” is an integrated electronic record comprising an electronic record of the matters recorded on an Individual Number Card and an electronic record, electronically signed by J-LIS, of the information necessary for the recipient to verify that the former record belongs to its sender. Receiving and verifying such a record from a person providing an Individual Number is added as an identity-verification measure. (Article Two, paragraph Eight, and Article Sixteen, item Two)
(ii) A person issued an Individual Number Card and a valid signature electronic certificate for that card may apply for issuance of a card-substitute electronic record for storage and use on the person’s mobile terminal. (Article Eighteen-Two, paragraph One)
(iii) A person issued a card-substitute electronic record must use a program certified by the Prime Minister to transmit it. The recipient must use a program provided or certified by the Prime Minister to verify that the record belongs to its sender. (Article Eighteen-Two, paragraphs Six and Seven; Article Eighteen-Three; and Article Eighteen-Four)
(iv) Necessary revisions are made to the basic principles, fees collected by J-LIS, J-LIS’s medium-term objectives, and penalties. (Article Three; Article Eighteen-Five, paragraph One; Article Thirty-Eight-Eight, paragraph One; and Article Fifty-Five)
3 Prime Minister’s Support for Ensuring the Accuracy of Specific Personal Information
The Prime Minister will provide parties implementing Individual Number administrative operations with information, advice, and other support necessary to keep specific personal information accurate and current. (Article Six-Two)(Sources) Digital Agency and Shin-Nihon Hoki PICK UP! Legislative Amendment Information
The Digital Agency’s information on this legislation is collected here.
Item 4 on this page corresponds to this.
4. Measures Concerning My Number and My Number Cards (My Number Act)
- Ensuring the Accuracy of Specific Personal Information (effective on promulgation)
Following the comprehensive review of My Number information, the Act provides that the Digital Agency (the Prime Minister) will give the support necessary to ensure the accuracy of specific personal information, with the aim of preventing erroneous links between My Numbers and personal information from recurring. - Measures Necessary to Introduce the Next My Number Card (effective within 5 years)
For introduction of the next card, gender will remain electronically recorded but be removed from the card face, among other measures. - Measures Necessary to Add My Number Card Functions to Smartphones (effective within 1 years)
A mechanism will enable identity verification under the My Number Act using only a smartphone, in the same manner as a My Number Card.
The following materials are attached.
- Overview (PDF / 154KB)
- Outline (PDF / 154KB)
- Draft Text and Reasons (PDF / 198KB)
- Comparative Table (PDF / 438KB)
- Referenced Provisions (PDF / 192KB)
This Digital Agency material, issued while the bill was under deliberation in the House of Councillors, clearly explains card-substitute electronic records.
Page 3 is the same as page Digital Agency, “Promoting Adoption and Expanded Use of My Number Cards” page 11.

Related posts

IPA’s Mr. Tsuda Receives FORBES Japan’s “30 Under 30” Award
Mr. Tsuda of IPA, whom I think is one of the ID geeks, has been selected for FOEBES JAPAN 30Under30 2026. He is the second member…

OpenID Summit Tokyo 2026 “Special Edition” Closing Keynote
The tickets apparently sold out instantly, so I had not introduced this event here; however, tomorrow, August 26, I will appear at the OpenID Summit Tokyo…

Data Sustains Lives—MyDataConference 2026 Opening Address
The following is the opening address for the MyData Japan Conference 2026, delivered by Nat Sakimura in his capacity as Chair of the General Incorporated Association…

You must be logged in to post a comment.