2026-3-17 Login Method for the National Diet Library Search and Related Services to Change in June

From June 2026, in order to enhance security, the authentication method used by registered users when logging in will be changed to email-based authentication for the following services:
the National Diet Library Search, the National Diet Library Search for Persons with Disabilities (Mina Search), and the National Diet Library Digital Collections.

The new authentication method will require users to log in by entering a one-time authentication code sent to their registered email address in addition to their User ID and password.
Please note that the login method for using onsite terminals at National Diet Library facilities will remain unchanged.

If you have not yet registered an email address, please log into the National Diet Library Search or a related service and register an email address before June 2026 so that you can receive authentication codes.
If you have already registered an email address, please make sure that your registered email address is currently able to receive email.

For further details, please refer to the announcement on the National Diet Library Search website.