<onlyinclude> ISO 3166-1, as part of the ISO 3166 standard, provides codes for the names of countries and dependent territories, and is published by the International Organization for Standardization (ISO). The official name of the standard is Codes for the representation of names of countries and their subdivisions ? Part 1: Country codes. It defines three sets of country codes:^[1]

• ISO 3166-1 alpha-2, a two-letter system, used in many applications, most prominently for country code top-level domains (ccTLDs), with some exceptions.
• ISO 3166-1 alpha-3, a three-letter system, which allows a better visual association between country name and code element than the alpha-2 code.
• ISO 3166-1 numeric, a three-digit numerical system, with the advantage of script (writing system) independence, and hence useful for people or systems which uses a non-Latin script. This is identical to codes defined by the United Nations Statistics Division.</onlyinclude>

ISO 3166 has included alphabetical country codes since its first edition in 1974, and numeric country codes since its second edition in 1981. The country codes were first published as ISO 3166-1 in 1997 in the fifth edition of ISO 3166, when ISO 3166 were divided into three separate parts.^[2]

ISO 3166-1 is not the only standard for country codes. Many international organizations use their own country codes, where some of them closely correspond to the ISO 3166-1 codes. For examples, see country codes.

Criteria for inclusion

Currently, 246 countries and territories are assigned official codes in ISO 3166-1. According to the ISO 3166 Maintenance Agency (ISO 3166/MA), the only way to enter a new country name into ISO 3166-1 is to have it registered in one of the following two sources:^[3]

• United Nations Terminology Bulletin, Country Names, or
• Country and Region Codes for Statistical Use of the UN Statistics Division.

To be listed in the bulletin Country Names, a country or territory must be any of the following:

• a member country of the United Nations,
• a member of one of its specialized agencies, or
• a party to the Statute of the International Court of Justice.

Once a country name or territory name appears in either of these two sources, it will be added to ISO 3166-1 by default.

Information included

ISO 3166-1 is published officially in both English and French. Since the second edition of ISO 3166-1, the following columns are included for each entry:

1. COUNTRY NAME English (or French) short name
2. English (or French) short name lower case
3. English (or French) full name
4. Alpha-2 code
5. Alpha-3 code
6. Numeric code
7. Remarks
8. Independent (# denotes the country is independent)
9. Additional information (official language alpha-2 codes)
10. Additional information (official language alpha-3 codes)
11. Additional information (local name)

Officially assigned code elements

The following is a complete ISO 3166-1 encoding code list in alphabetical order by the English short country names officially used by the ISO 3166/MA, which uses country names from United Nations sources.^[4] The table includes officially assigned codes only.

Reserved and user-assigned code elements

Besides the officially assigned codes, code elements may be expanded by using either reserved codes or user-assigned codes.^[6]

Reserved code elements are codes which, while not ISO 3166-1 codes, are in use for some applications in conjunction with the ISO 3166 codes. They are reserved to add flexibility to the coding system. Usually, obsolete codes may be kept as reserved, while some overseas territories, international organizations, and special nationality status have reserved codes of their own. See the corresponding sections in ISO 3166-1 alpha-2 and ISO 3166-1 alpha-3 for their respective reserved codes (ISO 3166-1 numeric does not have reserved codes).

User-assigned code elements are codes at the disposal of users who need to add further names of countries, territories or other geographical entities to their in-house application of ISO 3166-1, and the ISO 3166/MA will never use them in the updating process of the standard. See the corresponding sections in ISO 3166-1 alpha-2, ISO 3166-1 alpha-3 and ISO 3166-1 numeric for their respective user-assigned codes.

Changes

A country or territory may get new codes if it changes its name or its territorial boundaries. A country generally gets new alphabetical codes if its name changes, whereas a new numeric code is associated with a change of boundaries. Changes to ISO 3166-1 are announced in newsletters by ISO 3166/MA.

12 newsletters were released between the first and second editions of ISO 3166-1 (published in 1997 and 2006 respectively):^[7]

1. Newsletter V-1 ? Published 1998-02-05: Change of official name (Samoa).
2. Newsletter V-2 ? Published 1999-10-01: Inclusion of new country name and code elements (Palestinian Territory, Occupied).
3. Newsletter V-3 ? Published 2002-02-01: Change of alpha-3 Code Element (Romania).
4. Newsletter V-4 ? Published 2002-05-20: Name changes (Afghanistan, Azerbaijan, Bahrain, Bosnia and Herzegovina, Fiji, Hong Kong, Kazakhstan, Kiribati, Macao, Niue, Somalia, and Venezuela).
5. Newsletter V-5 ? Published 2002-05-20: Change of names and alphabetical code elements of East Timor.
6. Newsletter V-6 ? Published 2002-11-15: Change of names of East Timor (to Timor-Leste).
7. Newsletter V-7 ? Published 2002-11-15: Change of official name of Comoros.
8. Newsletter V-8 ? Published 2003-07-23: Deletion of "Yugoslavia"; inclusion of "Serbia and Montenegro" with new alphabetical code elements.
9. Newsletter V-9 ? Published 2004-02-13: Inclusion of an entry for Åland Islands.
10. Newsletter V-10 ? Published 2004-04-26: Name changes (Afghanistan and Åland Islands).
11. Newsletter V-11 ? Published 2006-03-29: Inclusion of an entry for Jersey, Guernsey and Isle of Man. Change of remark for the United Kingdom.
12. Newsletter V-12 ? Published 2006-09-26: Inclusion of the new entries for "Serbia" and "Montenegro" (replacing Serbia and Montenegro).

The second edition of ISO 3166-1 comprised a consolidation of all changes from the first edition as published in the newsletters from V-1 to V-12.^[8] Two newsletters have been released since the second edition of ISO 3166-1 was published:

1. Newsletter VI-1 ? Published 2007-09-21: Assignment of code elements for Saint Barthélemy and Saint Martin and update of France and other French Territories (French Polynesia, French Southern Territories, Guadeloupe, and Réunion).
2. Newsletter VI-2 ? Published 2008-04-08: Name changes for Moldova, Montenegro and other minor corrections (Madagascar, Palestinian Territory, Occupied, and Saint Barthélemy).

References

1. ↑ ISO 3166 FAQs ? General questions
2. ↑ Development of ISO 3166
3. ↑ ISO 3166-1 and ccTLDs
4. ↑ ISO 3166 and the UN
5. ↑ declared independence from Serbia on February 17, 2008. It is not known if (or when) the ISO 3166/MA will release official codes for the area.
6. ↑ Customizing ISO 3166-1
7. ↑ Updates on ISO 3166
8. ↑ Second edition of ISO 3166-1 published

• Information on reserved codes taken from "Reserved code elements under ISO 3166-1" published by Secretariat of ISO/TC 46, ISO 3166 Maintenance Agency, 2001-02-13, available on request from ISO 3166/MA.

See also

• List of IOC country codes, slightly different codes from ISO 3166-1 alpha-3 codes, used by the International Olympic Committee
• List of FIFA country codes, slightly different codes from ISO 3166-1 alpha-3 codes, used by FIFA
• Comparison of IOC, FIFA, and ISO 3166 country codes
• Federal Information Processing Standard

External links

• ISO 3166/MA – ISO 3166 Maintenance Agency at the International Organization for Standardization – includes up-to-date lists of two-letter codes.
• United Nations Statistics Division – Standard Country or Area Codes for Statistical Use – includes three-letter and numeric codes.
• CIA World Factbook – Cross-Reference List of Country Data Codes (public domain)
• Statoids – Country codes

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