Visitor Qualification & Visiting Procedures
Visitor Qualification
Anybody eighteen years of age or older is eligible to visit and request the services of the National Diet Library (NDL).
User Registration
By registering, you can use the Library in more convenient ways. See the User Registration for more information.
When Visiting the NDL
- The visitors' entrance to the NDL is on its eastern side. Books are available in the NDL Main Building, and Periodicals in the Annex. The Main Building and the Annex are linked by corridors. (See the Map of the National Diet Library for the entrance location.)
Registered users must enter the Library from the entrance in the Main Building, and non-registered users from the entrance in the Annex. - For security and other reasons, the following cannot be brought into the Library. Please put these items in the lockers in the entrance hall. (To use a locker, you need to put in a 100-yen coin. The coin will be returned when you open the locker again.) You can take your purse, writing instruments, and valuables with you in a transparent bag provided in the Locker Room.
- The User Card Issuing Machines are located at the entrance. Please follow the instructions below to obtain a user card. Registered users: hold your registered user card over the sensor of the Machine and then input your password to receive a user card. Non-registered users: following the instructions on the display, input your name, address, telephone number, etc. to receive a user card. A user card is required when searching, requesting, receiving, returning and having materials photocopied; you should not lose or damage it. (The card will be automatically collected when you leave the Library).

- After receiving the user card, proceed to the Entrance Gate. Touch the written sign, "CARD, " on the Gate with your user card to open the Gate and enter.
- *Permission is required to use the Modern Japanese Political History Materials Room, the Rare Books and Old Materials Room, and the Audio-Visual Materials Room.
- *In the Library, you will need a writing instrument to fill in forms to receive materials or have them photocopied. You will also need some money with you to pay for photocopy services.
- *For more information about the Library's services and materials, please inquire at the General Information Desk in the Main Building and Annex.
Items not to be brought into the Library
The Items listed in the box below are NOT allowed inside the Library. You are requested to put them in a locker. To use a locker, you need to put in a 100-yen coin. The coin will be returned when you open the locker again. Please put your umbrella in an umbrella stand. For the details, please see the Instructions for the On-site Use of the National Diet Library.
Bags, envelopes and any other opaque containers 7x10 inches (17x25cm) or larger, audio equipment (headphone stereos, radios, headphones), copiers, cameras, videos, scanners, blades, hazardous goods, umbrellas, and any other things that could damage library property or annoy other readers.
- *Please switch mobile phones to pulse mode inside the NDL building and use them only in the designated areas. Photography using camera-equipped mobile phones is prohibited.
- *Visitors carrying a PC, word processor, sound-generating pocket calculator or other equipment must consult the library staff at the Entrance Information Desks. These devices may be used in certain designated sections of the Library. Outlets are available.
When Leaving the NDL
Lost and Found
Lost property is kept in the Library. To reclaim, please call or visit:
Tel: 03-3581-2331, Lost and Found, NDL (1st floor, Main Building).
National Diet Library