Currently for the Dominican Republic, ISO 3166-2 codes are defined for 10 regions, 31 provinces and 1 district. The Distrito Nacional contains the capital of the country Santo Domingo and has special status equal to the provinces.
Each code consists of two parts, separated by a hyphen. The first part is DO, the ISO 3166-1 alpha-2 code of the Dominican Republic. The second part is two digits:
01: district
02–27: provinces as of late 1970s
28–30: provinces created in the 1980s and 1990s
31–32: provinces created in 2001 and 2002
33–42: regions
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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^ abFor reference only, English name not included in the ISO 3166-2 standard.
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. ISO stopped issuing newsletters in 2013.
Introduction of new subdivision code elements taken from the Dominican Statistics Code. Correction of alphabetic sorting of subdivision names. Addition of 1 alternative name form