On 1st of August, 2022, for the first time, DeBo INFRACERT d.o.o. has issued a CERTIFICATE OF CONFORMITY with the national rules of a four-unite electric motor train, type L-4431-FLIRT 3 EMU, with manufacturing number L-4431-20, manufactured in Poland in 2021 by the manufacturer STADLER Polska Sp. z.o.o. It has been confirmed that the train complies with national rules, the Law on Safety and Interoperability of the Railway System and the Ordinance on Railway Vehicles. FLIRT 3 EMU is compatible with railway infrastructure subsystems in the Republic of Croatia, and is safe for traffic on the railway network of HŽ Infrastruktura d.o.o.