Citizenship represents a legal bond between an individual and the state from which rights and obligations arise. Each country, with its positive regulations, independently determines who it will consider its citizen and the conditions or method of acquiring citizenship. Croatian legislation stipulates that Croatian citizenship is acquired by origin, birth on the territory of the Republic of Croatia, naturalisation or under the basis of international treaties. The fundamental regulation governing the prersumptions and methods of acquiring Croatian citizenship is the Croatian Citizenship Act, which entered into force on the 8th of October, 1991 and, with several amendments, is still in force today. Croatian citizenship by origin and birth on the territory of the Republic of Croatia is acquired at the moment of birth, while Croatian citizenship by naturalisation is acquired on the date of delivery of the decision on admission to Croatian citizenship. The most common way of acquiring Croatian citizenship is by origin, where both parents are Croatian citizens at the time of the child's birth, and the majority of the Croatian population acquired Croatian citizenship in this way. Acquisition of Croatian citizenship by naturalization for foreigners who have applied for Croatian citizenship is connected to a special procedure in which the foreigner must prove his knowledge of the Croatian language and the Latin alphabet, and positively answer a questionnaire on knowledge of Croatian culture and social order. The Registry office keeps a single record of Croatian citizenship in which persons who have acquired Croatian citizenship are registered according to the provisions of the Croatian Citizenship Act. Croatian citizenship is proven by a valid identity card, military card, passport or certificate of nationality, which are public documents.