RG meaning in Governmental ?

The cédula de identidade is the official national identity document in Brazil. It is often informally called carteira de identidade (identity card), "RG" ([ɛʁiˈge]) (from Registro Geral, General Registry) or simply identidade in Portuguese. The card contains the name of the bearer, filiation, place of birth, date of birth, signature and thumbprint of the bearer. Other national documents can legally be used as an identity card, such as a federative unit-issued driver's license, passport or, for minors, a birth certificate. Each card has a unique RG number.

Brazilian identity cards can be used as travel documents to enter the Mercosur members and associated countries (except Guyana and Suriname).