On 16 May 2021, switching tests between the 15 kV 16.7 Hz and 3 kV DC voltages took place at the border crossing station Spielfeld-Strass with a railjet rake and Taurus and Vectron locomotives.
On 27 November 2020, Alstom's Coradia iLint has completed around three months of test operation on the ÖBB regional lines.
In connection with the forthcoming replacement of RegioJet by jointly operating ZSSK and ÖBB on the Bratislava - Komárno line from 12 December 2020, the first test runs of „new“ vehicles envisaged for these services took place there.
Between 14 and 16 June, international passenger services from the Czech Republic in the directions to Austria and Germany were restored, this including the operation of railjet Praha - Wien - Graz services and “Berliner” Praha - Berlin - Hamburg (- Kiel) services. At the same time, this enabled start of one new direct Graz - Wien - Praha - Berlin railjet service.