On July 1, 2013, the e-legal deposit of online publications started based on the National Diet Library Law revised in June 2012. According to this, the National Diet Library, Japan (NDL) started to offer the Japanese National Bibliography of online publications on March 25th, 2014. The NDL also started to provide the Japanese National Bibliography through the OAI-PMH.
Further information: 「全国書誌データ提供」のページ (In Japanese)
The National Diet Library, Japan (NDL), adopts the MARC21 format for the JAPAN/MARC, a machine-readable form of the Japanese National Bibliography, from January 2012. At the same time, the NDL shifts character set for bibliographic records to Unicode for international use.
From January 2012, it is also possible to download JAPAN/MARC bibliographic records in MARC21 format through the NDL-OPAC.
*The Japanese National Bibliography through the NDL-OPAC
By OSHIBA, Tadahiko (NDL)