In July 1975, when the Commonwealth Railways were succeeded by the Australian National Railways Commission (ANR, later branded as "Australian National" or AN), they were withdrawn from service and stored. In 1986, however, they were reinstated on the "Iron Triangle Limited" service from Adelaide to Whyalla and the "Silver City Limited" service from Broken Hill. The services continued until December 31, 1990, when all South Australian regional passenger services ceased. The cars were withdrawn from service in 1990. CB1 is preserved at the National Railway Museum, Port Adelaide; CB2 and CB3 are in private hands.