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Public Comment: Single, Two and Select Three Character Names in Dot-pro

A new public comment period opens today for 30 days on a proposed amendment from RegistryPro to Appendix C and K of the dot-pro Registry Agreement.

On 8 April 2009, ICANN posted for public information a request submitted by RegistryPro through the Registry Services Evaluation Process (RSEP). The request calls for a phased allocation process for single, two and select three character names in dot-pro.

As provided for by existing consensus policy, ICANN performed a preliminary review to determine whether the proposal might raise significant security, stability, or competition issues. ICANN's determination is that the proposal does not raise such issues.

[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 tothe dot-pro Schedule of Reserved Names (Appendix K) and a description of the phased allocation program is proposed to be inserted in Section 12 of Appendix C. A copy of the proposed contract amendment is available here [PDF, 100K]. Comments on the proposed amendment may be submitted to the email address pro-alloc-amendment at through 5 June 2009 23:59 UTC.

All documentation related to the RegistryPro proposal is available at

Related links:

The RegistryPro proposal [pdf]

Public comment period information

Proposed contract amendment [pdf]

RSTEP consensus policy

Previous single-character comment forum

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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."