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Concluded WG Internationalized Resource Identifiers (iri)

Note: The data for concluded WGs is occasionally incorrect.

WG Name Internationalized Resource Identifiers
Acronym iri
Area Applications Area (app)
State Concluded
Charter charter-ietf-iri-01 Approved
Document dependencies
Additional resources Issue tracker, Wiki
Personnel Chairs Chris Weber, Peter Saint-Andre
Area Director Pete Resnick
Mailing list Address
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Final Charter for Working Group

This working group will produce
* A new version of RFC 3987: "Internationalized Resource
Identifiers (IRIs)" using draft-duerst-iri-bis as the base
* A new version of RFC 4395: "Guidelines and Registration
Procedures for New URI Schemes"

The new version of RFC 3987 may be split into separate documents,
if, in the opinion of the chair(s), it would facilitate distribution
of the workload and allow more focused reviews. For example, the
following breakdown has been suggested:

  • Handling of Internationalized domain names in IRIs (BCP)
  • Internationalization Considerations in IRIs (guidelines
    for BIDI, character ranges to avoid, special considerations) (BCP)
  • Syntax, parsing, comparison of IRIs (Standards track)

The working group starts with a relatively mature update to
RFC 3987 in preparation; the primary focus of the group
is to resolve conflicting uses, requirements and best practices
for internationalized URLs/URIs/IRIs and various other forms,
among many specifications and committees, while moving toward
consistent use of IRIs among the wide range of Internet
applications that use them. In particular:

  • The IRI specification(s) must (continue to) be suitable
    for normative reference with Web and XML standards from W3C
    specifications. The group should coordinate with the W3C working
    groups on HTML5, XML Core, and Internationalization, as well
    as with IETF HTTPBIS WG to ensure acceptability.
  • The IRI specification(s) should be follow best practices
    for domain names. The group should coordinate with the IETF
    IDNABIS working group and Unicode Consortium to assure acceptability.
  • Explicit review by experts on (and native speakers) of RTL
    languages, of the recommendations for BIDI languages,
    is required.

The Working Group will examine at least one and possibly more
URI/IRI schemes to check that the new specification(s) are
appropriate for existing schemes. The exact schemes to be
reviewed will be decided by the WG.

Changes to RFC 3986 ("Uniform Resource Identifier (URI):
Generic Syntax") are explicitly out of scope of this charter,
and may only be considered with a charter update.


Date Milestone Associated documents
Jun 2010 Publish IRI documents as RFCs (BCP, standards track, as appropriate)
May 2010 Working group Last Call of all documents
Feb 2010 Publish initial version of the WG documents