The BRUA project is developed in the context of the necessity to diversify the gas supply sources of the European countries, the transmission to the Central European markets of the Caspian Sea gas, the ensuring in the Bulgarian direction of a bidirectional transmission capacity of 1.5 bcm per year and the development of a transmission capacity of 1.75 bcm per year in phase I and 4.4 bcm Per year in phase II in the Hungarian direction. The pipeline will have a total length of 528 km.