Rail Transport of Montenegro AD-Podgorica, as a member of the International Railway Union (UIC), has developed cooperation with railway administrations from the surrounding area in the main activity of public international railway passenger transport, as the main activity in long-distance passenger transport. Therefore, it is directly involved in activities related to the organization of international passenger transport and participates in international forums and meetings of FTE (Forum Train Europe), WMPS, and Rout, where the organization and timetable of international passenger trains, coach cars for passenger transport between European railway administrations are agreed upon.
Currently, due to the works in 2019 on the Infrastructure of Serbian Railways, the trains Bar-Subotica-Bar do not operate, and in the organization of Rail Transport of Montenegro AD-Podgorica and “Serbia Train” JSC Belgrade in international passenger transport, long-distance passenger transport is organized in daily and night offer on the routes Bar-Belgrade-Bar.
The exchange and use of passenger cars in international traffic between railway operators ŽPCG and “Serbia Train” JSC Belgrade are carried out in accordance with the provisions of the RIC Agreement.