Certification testing commences on Ivolga 4.0 EMU, Russia November 5, 2023 | Europe News, News Certification testing has commenced on the prototype Ivolga 4.0 electrical multiple unit (EMU) at the Russian Railways (RZD) test circuit at Scherbinka. The 11-car train is the fourth generation of th... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password