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  • 未払いの請求がないこと。
  • レジストラ データ エスクローの要件を遵守していること。
  • RAAの期間終了日前の2年間に3回以上の重大な違反についてICANNから通知を受けていないこと。
  • レジストラは、レジストラ認定契約および レジストラ認定申請に記載されているICANNレジストラ認定の資格基準を満たしていることを確認していること。
  • 一次連絡先または代理人が、ICANN Learnのレジストラトレーニングコースを修了していること。



  1. レジストラが認定要件を満たさなくなっている。
  2. レジストラが契約に定められた義務を遵守していない。
  3. 契約期限が切れる前の2年間に、ICANNがレジストラに対して重大な契約違反について3件通知した。
  4. 契約期限が切れる前に契約が終了した。


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."