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Public Comment: Single and Two-Character .BIZ Domains

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ICANN is today opening a public comment forum on a proposed amendment from NeuStar to Appendix 6 and 7 of the .BIZ Registry Agreement.

On 31 October 2008, ICANN posted for public information a request submitted by NeuStar through the Registry Services Evaluation Process for a phased allocation process for single and two-character names in .BIZ. The NeuStar proposal is available at [PDF, 100K].

As provided for by existing consensus policy (, ICANN has undertaken a preliminary determination to determine whether the proposal might raise significant security or stability, or competition issues. ICANN's determination is that the proposal did not raise such issues in .BIZ.

[Note that, from 13 June to 13 July 2008, ICANN conducted a public comment forum on a proposed single-character second-level domain names allocation framework (, which supported the allocation single-character second-level domain names in existing registries and reviewed various allocation methods.]

The proposal requires an amendment the .BIZ List of Reserved TLD Strings (Appendix 6) and a description of the phased allocation program is proposed to be inserted at the 7.2 of Appendix 7. A copy of the proposed amendment is available here [PDF, 24K]. Comments on the proposed amendment submitted to biz-alloc-amendment at will be considered until 15 Mar 2009 23:59 UTC. Comments may be viewed at

All documentation related to the NeuStar proposal is available at

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Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as"""" is not an IDN."