Japanese National Centre for ISSN

[Important notice](November 2, 2026)
All ISSN registration applications will be suspended from 5:00 p.m. on December 21, 2026 to 10:00 a.m. on January 5, 2027. The ISSN application form will also be unavailable during this period.

[Important notice for online resources](July 31, 2026)
At present, applications for ISSN registration for online resources (online journals, databases, etc.) are being accepted only for publications that have already been published or are scheduled to be published by December 2026.
Applications are also being accepted for online resources approved for publication on J-STAGE, including those scheduled to be published from January 2027 onward.
For details, please refer to Requirements and Procedure for ISSN Registration.

Table of Contents

• Overview of International Standard Serial Number (ISSN)
  • What is an ISSN?
  • Advantages of ISSN
  • ISSN and Key Titles
  • Outline of ISSN-L
  • The ISSN Network and the Japanese National Centre for ISSN
  • ISSN and Deposits of Online Publications
• Requirements and Procedure for ISSN Registration
  • Outline of the Requirements for ISSN Application
  • ISSN Registration Procedures
  • Displaying an ISSN
• Bibliographic Data Associated with ISSN Registration
  • Bibliographic Data Provided via NDL Search
  • Bibliographic Data Provided Internationally

Frequently Asked Questions

Contact Us

Japanese National Centre for ISSN
Serials and Non-book Materials Division,
Acquisitions and Bibliography Department,
National Diet Library
E-mail: issnjpn