First T coach authorised

On 20 May 2025, TVZ received a certificate of conformity with the Technical Regulations of the Customs Union TR TS 001/2011 for Model 61-4533 single-deck compartment car. This is the first representative of passenger cars in the T gauge (T gabarite).

Its bodyshells are smooth, without protruding corrugations, the dimensions of the car are increased by 730 mm in length and by 280 mm in width compared to present passenger cars running on the Russian network. Among the news is a children's compartment with a thematic design and a berth of increased width. The exterior and interior of the car are made in an original design.