Each code consists of two parts, separated by a hyphen. The first part is CZ, the ISO 3166-1 alpha-2 code for the country. The second part is either of the following:
two digits: regions
three characters (two digits followed by a digit or a letter): districts
For the districts, the first two digits indicate the region that the district is in (based on the original NUTS code of the region):
Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).
Subdivision names are sorted in Czech alphabetical order: a (á), b, c, č, d (ď), e (é) (ě), f, g, h, ch, i (í), j, k, l, m, n (ň), o (ó), p, q, r, ř, s, š, t (ť), u (ú) (ů), v, w, x, y (ý), z, ž.
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Addition of the country code prefix as the first code element, alphabetical re-ordering
The following changes to the entry are listed on ISO's online catalogue, the Online Browsing Platform:
Effective date of change
Short description of change
Code/Subdivision change
2010-02-19
Addition of the country code prefix as the first code element, alphabetical re-ordering
2016-09-28
Change of the short name
2016-11-15
Addition of category name of “capital city” in eng, fra, ces; change of subdivision category of CZ-10 from region to capital city; change of spelling of CZ-802, CZ-806, CZ-63; typographical correction of CZ-615; addition of districts CZ-116 to CZ-122; change of parent subdivision from CZ-JC to CZ-31, CZ-JM to CZ-64, CZ-KA to CZ-41, CZ-KR to CZ-52, CZ-LI to CZ-51, Z-O to CZ-80, CZ-OL to CZ-71, CZ-PA to CZ-53, CZ-PL to CZ-32, CZ-ST to CZ-20, CZ-US to CZ-42, CZ-VY to CZ-63, CZ-ZL to CZ-72; change of subdivision code from CZ-621 to CZ 641, CZ-624 to CZ 644; CZ-622 to CZ 642, CZ-623 to CZ 643, CZ-611 to CZ 631, CZ-612 to CZ 632, CZ-613 to CZ 633, CZ-10A to CZ 110, CZ-10B to CZ 111, CZ-10C to CZ 112, CZ-10D to CZ 113, CZ-0E to CZ 114, CZ-10F to CZ 115, CZ-614 to CZ 634, CZ-626 to CZ 646, CZ-615 to CZ 635, CZ-627 to CZ 647, CZ-PR to CZ-10; update List Source
