The Danish Agency for Culture and Palaces is the international authority for maintaining the standard and its registry.
An ISIL consists of a prefix identifying the authority which issued the ISIL, a dash, and then an "identifier issued by that authority. All two letter prefixes are reserved for the "ISO 3166-1 alpha-2 country code, followed by an identifier assigned by that country's national library authority. Global-level identifiers can also be assigned, which are not associated with a particular country, e.g. 'oclc-' for the "OCLC. The suffix is generally a pre-existing system of identifying libraries; thus, ISIL unifies existing systems around the world rather than instituting an entire system from scratch.
|"Wikidata has the property: International Standard Identifier for Libraries (P791) (see uses)|
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