(Reuters) -Tesla's electric-vehicle charging technology is being put on a fast track to become a North American standard, giving a further boost to the automaker's plan to expand access to its once-exclusive chargers. Tesla's charging technology has been gathering momentum for weeks. Volvo Car on Tuesday joined General Motors, Ford and Rivian in embracing Tesla's charging design, shunning earlier efforts by the Biden administration to make the Combined Charging System (CCS) the dominant charging standard in the United States.