# ISO Standards

Throughout the API, ISO standard codes are used for things like country codes, country subdivisions and languages.

ISO Country Codes

{% embed url="<https://www.iban.com/country-codes>" %}
ISO 3166-1 alpha-2
{% endembed %}

ISO Country Subdivision Codes

{% embed url="<https://unece.org/trade/cefact/unlocode-code-list-country-and-territory>" %}
ISO 3166-6
{% endembed %}

ISO Language Codes

{% embed url="<https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes>" %}
ISO 639-1
{% endembed %}


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