Early base models of the ERC 90 required the middle set of road wheels to be raised when in transport. Newer modified versions do not have this requirement. NBC, land navigation, crew compartment heating and cooling is also standard. The GIAT 90mm turret can fire the gamut of standard ammunition rounds including HEAT, smoke, APFSDS, HE and illuminating. Incidentally, the ERC in the designation stands for 'Engin de Reconnaissance Cannon'. The ERC-90 is in service with Argentina, Chad, France, Gabon, Ivory Coast, Mexico, and Nigeria.