Derived by Brazilian Institute of Geography and Statistics (IBGE) in 1989 at Chua origin point. In use by Shell throughout Brazil. For use by Petrobras and ANP, replaced by tfm code 5882 from 1994.
Agencia Nacional do Petroleo (ANP) and IBGE resolution 23/89 of 21st February 1989.
See CRS code 4618 for recommended coordinate axis representation for the human interface.