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实质性转包协议的定义是:与 TLD 任何关键职能(如注册管理机构协议规定 10 第 6 条中确定的职能)相关的任何转包协议。

实质性转包协议的变更是指对任何后端注册管理运行机构(也称为"后端服务提供商"或"注册管理机构服务提供商",在注册管理机构移交流程中被定义为与注册管理运行机构签约以运行某个 gTLD 注册管理机构的一个或多个关键职能的组织,其中包括 DNS 提供商等服务提供商)的变更。为便于在本网页和下方提供的操作指南中使用,某个 gTLD 的一个或多个关键职能(如注册管理机构协议中的定义)的提供商将被称为注册管理机构服务提供商。

如果某个注册管理运行机构正在计划实施控制权变更和实质性转包协议,该注册管理运行机构应开始与 ICANN 合作,且合作应尽早开始并在交易完成之前进行。注意:只有当前已签约的注册管理运行机构才可正式申请变更实质性转包协议。但是,我们积极鼓励现有和拟议的注册管理运行机构与 ICANN 协同合作,处理转让事务。

注意,评估"实质性转包协议:变更注册管理机构服务提供商"时,ICANN 可能将拟议的注册管理机构服务提供商转至技术评估专家组接受相关评估。注册管理运行机构应负责支付由此产生的费用。


Material Subcontracting Arrangement (MSA): Change of Registry Service Provider (RSP)
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."