Rodné číslo (Czech and Slovak birth number)

The Czech Ministry of the Interior describes it as a ten-digit number divisible by eleven. The first pair of digits is the last two digits of the year of birth, the second pair is the month (with 50 added for women), the third pair is the day, and the four-digit ending distinguishes people born on the same day. Numbers given to people born before 1954 have nine digits. Slovakia uses the same structure under its own Act No. 301/1995 on the birth number.

Because the number is built from your birth date, the date in your passport decides it; check that it matches on every form.

• Residence over 90 days. If you hold a permitted stay of more than 90 days, such as an employee card, the Ministry of the Interior's asylum and migration department for your address assigns the number ex officio. You do not apply.
• No residence or under 90 days. Only then can you apply, and only when you need the number to meet requirements under other laws, for example for study or employment.
• Exception. People with temporary protection or a special long-term residence permit under the Ukraine legislation are not assigned a number.

1. Write a reasoned application in Czech (Slovak is accepted) on the Ministry form or in free form, giving your names, date and place of birth and citizenship.
2. Attach copies of a document showing your date and place of birth and of one showing your citizenship, with an official Czech translation if needed.
3. Sign it before a Ministry official or have the signature officially verified.
4. Submit it in person or by post to the Ministry's administrative department in Prague 4, through its data box (6BNAAWP), or by email with a qualified electronic signature.
5. Pay the CZK 1,000 administrative fee. EU, EEA and Swiss citizens are exempt.

Slovakia's Act No. 301/1995, as amended, says the Ministry of the Interior of the Slovak Republic assigns a birth number to a foreigner who has permanent, temporary or tolerated residence and does not yet have one. A person without permanent residence can also apply in writing, in Slovak, with a birth document and an official translation. The document proving your right to stay in Slovakia is accepted as proof of the number. See Slovakia.

It identifies you in Czech and Slovak public registers, and the Czech Ministry of the Interior names employment and study as typical reasons a foreigner may need one. Doctors and nurses usually receive it automatically with the residence permit they hold for the supervised practice of the aprobační zkouška. Slovak law also lets the Ministry cancel and reissue a number that does not follow the legal structure or is shared by two people. See Czechia.