DRAFT IRI Working Group Charter

See also:


This working group will produce

  • A new version of RFC 3987: "Internationalized Resource Identifiers (IRIs)"
  • 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 HTML, XML Core, and Internationalization to ensure acceptability (see HTML Editor requirements at end of referenced 'goals' list).
  • The IRI specification(s) should be follow best practices for domain names. The group should coordinate with the IETF IDNA working group to assure acceptability.
  • Explicit review by experts on (and native speakers) of RTL languages, of the recommendations for BIDI languages, is required.

In Addition 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. Schemes suggested for review include http:, pop:, imap:, xmpp:, mailto:, and sip:.

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.

Current Internet Drafts


BOF Chairs: Ted Hardie and Pete Resnick
Mailing list: public-iri@…
Responsible AD: Alexey Melnikov


January 2010
Additional update of Internet drafts by editor(s)
February 2010
Review of Internet Drafts, directions during W3C and IETF
May 2010
Working group Last Call of all documents
June 2010
Publish IRI documents as RFCs (BCP, standards track, as appropriate)

Additional documents for review and groups for liaison

For this working group to succeed, agreement of the affected communities, including the following, is required:

IDNA requirements for domain names in identifiers


Being prepared by:

HTTPBIS definition of http: URI scheme


Being prepared by:

  • HTTPBIS working group

Unicode Consortium

Work on IDNA, TR 46.

HTML5 definition of "URLs"


Being prepared by:


W3C Internationalization Core Working Group

Sponsor and coordinating body for W3C activity on IRIs

Last modified 8 years ago Last modified on May 19, 2011, 1:26:14 AM