Editing National Diet Library (section)

===National Diet Library Online Public Access Catalog (NDL-OPAC)===
The NDL provides an Online Public Access Catalog ([[OPAC]]), by which users can search the NDL's entire collection from anywhere in the world in either English<ref>{{Cite web |title=National Diet Library Online Public Access Catalog |url=http://opac.ndl.go.jp/index_e.html |url-status=dead |archive-url=https://wayback.archive-it.org/all/20091211015702/http://opac.ndl.go.jp/index_e.html |archive-date=2009-12-11 |access-date=2009-12-11 |website=National Diet Library}}</ref> or Japanese.<ref>{{Cite web |title=Kokuritsu Kokkaitoshokan Zōsho Kensaku Mōshikomi Shisutemu |script-title=ja:国立国会図書館 蔵書検索・申込システム |trans-title=National Diet Library Collection Search/Application System |url=http://opac.ndl.go.jp/index.html |url-status=dead |archive-url=https://archive.today/20021002060819/http://opac.ndl.go.jp/index.html |archive-date=2002-10-02 |access-date=2002-10-02 |publisher=Kokuritsu Kokkai Toshokan" 国立国会図書館 [National Diet Library] |language=ja}}</ref> Using OPAC to identify sources and catalog numbers, overseas users may obtain certain materials from the NDL through [[interlibrary loan]].<ref>{{Cite web |title=International Loan Service |url=http://www.ndl.go.jp/en/service/oversea/data_loan.html |url-status=dead |archive-url=https://web.archive.org/web/20051119165445/http://www.ndl.go.jp/en/service/oversea/data_loan.html |archive-date=2005-11-19 |access-date=2005-09-27 |website=National Diet Library}}</ref> In addition, the NDL provides a fee-based reproduction service for scholars residing overseas.<ref>{{Cite web |title=International Photoduplication Service |url=http://www.ndl.go.jp/en/service/oversea/data_copy.html |url-status=dead |archive-url=https://web.archive.org/web/20051114144736/http://www.ndl.go.jp/en/service/oversea/data_copy.html |archive-date=2005-11-14 |access-date=2005-09-27 |website=National Diet Library}}</ref> As of June 2017 NDL-OPAC is planned to end at the end of December 2017 and new online services will be launched.<ref>{{Cite web |title=NDL to Implement a New Search System in January 2018 |url=http://www.ndl.go.jp/en/2018renewal/index.html |url-status=dead |archive-url=https://web.archive.org/web/20171213201212/http://www.ndl.go.jp/en/2018renewal/index.html |archive-date=2017-12-13 |access-date=2017-12-13 |publisher=National Diet Library |language=en}}</ref>