News
Recent News 
April 27, 2026
- Starting in April 2026, Work authority data for modern Japanese literary works began to be created for books in Western languages published abroad.The list of work authority data created to date is available for download from the link below.
- Downloading the Authority File for Works (link to Web NDL Authorities)
- 読みの基準（2021年1月）(Rules for "Yomi" (reading kanji) (January 2021)) (PDF: 964KB) (in Japanese) is updated.
April 1, 2026
- 「国立国会図書館書誌データ作成・提供計画2026-2030」 (in Japanese) is available.
- 国際書誌コントロールに関するIFLA専門家声明（2025）(IFLA Professional Statement on Universal Bibliographic Control (2025) (in Japanese)) (link to IFLA Website) is available.
March 18, 2026
- MARCXML has been added as one of the formats available for downloading bibliographic data from the bibliographic details screens on NDL Search, Web Japanese National Bibliography, and Web NDL Catalog.
For more details, please refer to “Saving Bibliographic Records to a File”
March 5, 2026
- JAPAN/MARC MARC21フォーマットマニュアル (2021年1月) (JAPAN/MARC MARC21 Format Manual (January 2021 version)) (in Japanese) is updated.The main change is the addition of relationships for "Books" in field 775.
February 3, 2026
- Anonymous Classics : 無著者名古典作品統一タイトルリスト (in Japanese) is available.
This document presents a standardized list of uniform titles for anonymous classical Japanese works. It is based on the titles listed in Appendix 4.1: List of Uniform Headings for Anonymous Classics and Sacred Texts, Japan and the Orient, of the Nippon Cataloging Rules, 1987 Revised 3rd Edition. It was created by the National Diet Library with the cooperation from the Cataloging Committee of the Japan Library Association (日本図書館協会目録委員会), the National Institute of Japanese Literature (国文学研究資料館) .
On September 2025,「Anonymous Classics : a list of uniform titles for Japanese works」was released at IFLA Cataloguing Section for IFLA as part of its Anonymous Classics project.
February 2, 2026
January 14, 2026
- 令和7年度書誌調整連絡会議報告 (概要) (A brief report on the Conference on Bibliographic Control in FY 2025) (in Japanese) is available.
- 「日本目録規則2018年版「第2部 セクション2 著作、表現形、体現形、個別資料」適用細則」、「日本目録規則2018年版「第3部 関連」適用細則」(Operational Regulations for NCR2018 "Part 2, Section 2: Works, Expressions, Manifestations, and Items", "Part 3: Relationships") (in Japanese) are updated.
October 24, 2025
- 国立国会図書館件名作業指針 (National Diet Library Subject Cataloging Manual) (in Japanese) is updated.
- 文字の取扱い基準に基づく対応を行った文字一覧（2012年1月以降） (List of Characters that Require Special Handling)(After January 2012) (in Japanese) is updated.
September 5, 2025
- 個人に対する典拠形アクセス・ポイントの選択・形式基準 (2021年1月) (Rules for Choice and Form of Authorized Access Points for Persons (January 2021)) (PDF: 616KB) (in Japanese) is updated.
- 読みの基準（2021年1月）(Rules for "Yomi" (reading kanji) (January 2021)) (PDF: 964KB) (in Japanese) is updated.
June 30, 2025
- 国立国会図書館分類表 (NDLC) (National Diet Library Classification (NDLC)) (in Japanese) is updated.
June 10, 2025
- 統計からみた書誌データ (令和3年度以降) (Statistics on Bibliographic Records after FY 2021) (in Japanese) is updated.
June 4, 2025
- 令和6年度書誌調整連絡会議報告 (概要) (A brief report on the Conference on Bibliographic Control in FY 2024) (in Japanese) is available.
May 2, 2025
- The Transition from "The Japanese National Bibliography" to "The Japanese National Bibliographic Data": The Past and the Present of The Japanese National Bibliography Service (link to Current Awareness Portal) is available.
April 21, 2025
- The results of the survey in 2024 are available on the page 書誌データに関するアンケート (in Japanese).
March 14, 2025
- 家族に対する典拠形アクセス・ポイントの選択・形式基準 (2025年4月) (Rules for Choice and Form of Authorized Access Points for Families (April 2025)) (in Japanese) is available in preparation for its implementation in April 2025.
- JAPAN/MARC MARC21フォーマットマニュアル (2021年1月) (JAPAN/MARC MARC21 Format Manual (January 2021 version)) (in Japanese) is updated.The main changes include the addition of regulations related to the implementation of the Rules for Choice and Form of Authorized Access Points for Families (April 2025).
November 5, 2024
- 国立国会図書館の書誌データ (Bibliographic data of the National Diet Library) (PDF: 1.95MB) (pamphlet in Japanese) is updated.
October 21, 2024
- 「日本目録規則2018年版「第2部 セクション2 著作、表現形、体現形、個別資料」適用細則」、「日本目録規則2018年版「第3部 関連」適用細則」(Operational Regulations for NCR2018 "Part 2, Section 2: Works, Expressions, Manifestations, and Items", "Part 3: Relationships") (in Japanese) are updated.
- 国立国会図書館件名作業指針 (National Diet Library Subject Cataloging Manual) (in Japanese) is updated.
- 文字の取扱い基準に基づく対応を行った文字一覧 (List of Characters that Require Special Handling) (in Japanese) is updated.
September 25, 2024
- A remote training program entitled How to make good use of the bibliographic data of the NDL: Overview and how to use is updated.
June 12, 2024
- 統計からみた書誌データ (令和3年度以降) (Statistics on Bibliographic Records after FY 2021) (in Japanese) is updated.
May 15, 2024
- 令和5年度書誌調整連絡会議報告 (概要) (A brief report on the Conference on Bibliographic Control in FY 2023) (in Japanese) is available.
April 23, 2024
- Brief history of the Japanese National Bibliography page is now available.
* Please see the Web Archiving Project (WARP) for news from before this time.