Civil registration is the system by which a government records the vital events of its citizens and residents. The resulting repository or database has different names in different countries and even in different US states. It can be called a civil registry, civil register, vital records, and other terms, and the office responsible for receiving the registrations can be called a bureau of vital statistics, registry of vital records and statistics, registrar, registry, register, registry office, or population registry. The primary purpose of civil registration is to create a legal document that can be used to establish and protect the rights of individuals. A secondary purpose is to create a data source for the compilation of vital statistics.
The United Nations General Assembly in 1979 adopted the Convention on the Elimination of All Forms of Discrimination Against Women, Article 16 of which requires countries to establish compulsory civil registration of marriages.
Wikipedia https://en.wikipedia.org/wiki/Civil_registration
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