ISO 3166-2:TO

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ISO 3166-2:TO is the entry for Tonga in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

Tonga country in Oceania

Tonga, officially the Kingdom of Tonga, is a Polynesian country and archipelago comprising 169 islands, of which 36 are inhabited. The total surface area is about 750 square kilometres (290 sq mi) scattered over 700,000 square kilometres (270,000 sq mi) of the southern Pacific Ocean. The sovereign state has a population of 100,651 people, of whom 70% reside on the main island of Tongatapu.

ISO 3166-2 is part of the ISO 3166 standard published by the International Organization for Standardization (ISO), and defines codes for identifying the principal subdivisions of all countries coded in ISO 3166-1. The official name of the standard is Codes for the representation of names of countries and their subdivisions – Part 2: Country subdivision code. It was first published in 1998.

Standardization or standardisation is the process of implementing and developing technical standards based on the consensus of different parties that include firms, users, interest groups, standards organizations and governments Standardization can help to maximize compatibility, interoperability, safety, repeatability, or quality. It can also facilitate commoditization of formerly custom processes. In social sciences, including economics, the idea of standardization is close to the solution for a coordination problem, a situation in which all parties can realize mutual gains, but only by making mutually consistent decisions. This view includes the case of "spontaneous standardization processes", to produce de facto standards.

Contents

Currently for Tonga, ISO 3166-2 codes are defined for 5 divisions. Each code consists of two parts, separated by a hyphen. The first part is TO, the ISO 3166-1 alpha-2 code of Tonga. The second part is two digits (0105).

ISO 3166-1 alpha-2 two-letter country codes defined in ISO 3166-1

ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest. They are the most widely used of the country codes published by ISO, and are used most prominently for the Internet's country code top-level domains. They are also used as country identifiers extending the postal code when appropriate within the international postal system for paper mail, and has replaced the previous one consisting one-letter codes. They were first included as part of the ISO 3166 standard in its first edition in 1974.

Current codes

Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).

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CodeSubdivision name (en, to)
TO-01 'Eua
TO-02 Ha'apai
TO-03 Niuas
TO-04 Tongatapu
TO-05 Vava'u

Changes

The following changes to the entry have been announced in newsletters by the ISO 3166/MA since the first publication of ISO 3166-2 in 1998:

NewsletterDate issuedDescription of change in newsletterCode/Subdivision change
Newsletter I-8 2007-04-17Addition of the administrative subdivisions and of their code elementsSubdivisions added:
5 divisions

See also

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