A new Request for Comments is now available in online RFC libraries. RFC 8458 Title: Using National Bibliography Numbers as Uniform Resource Names Author: J. Hakala Status: Informational Stream: IETF Date: October 2018 Mailbox: juha.hakala@helsinki.fi Pages: 18 Characters: 41283 Obsoletes: RFC 3188 I-D Tag: draft-hakala-urn-nbn-rfc3188bis-02.txt URL: https://www.rfc-editor.org/info/rfc8458 DOI: 10.17487/RFC8458 National Bibliography Numbers (NBNs) are used by national libraries and other organizations in order to identify resources in their collections. NBNs are usually applied to resources that are not catered for by established (standard) identifier systems such as International Standard Book Number (ISBN). A Uniform Resource Name (URN) namespace for NBNs was established in 2001 in RFC 3188. Since then, a number of European national libraries have implemented URN:NBN-based systems. This document replaces RFC 3188 and defines how NBNs can be supported within the updated URN framework. A revised namespace registration (version 4) compliant to RFC 8141 is included. INFORMATIONAL: This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC