Agreement between the People's Republic of Bulgaria and the Republic of Türkiye concerning co-operation in the use of the waters of rivers flowing through the territory of both countries.

Bulgaria and Türkiye agree on cooperating in determining which structures and installations can be constructed and used, for the benefit of the two Contracting Parties, in the basins of the Maritsa (Meric), Tundzha (Tunca), Veleka (Degirmendere) and Rezovska (Rezve) rivers, which intersect or form the frontier between the two countries. Bulgaria and Türkiye shall cooperate in the use of the waters of rivers flowing through the territory of both countries, which are important both for economic development and for protection against damage caused by floods and floating ice, for the purpose of meeting the irrigational and other needs of the two countries. In addition, the Contracting Parties agree to exchange hydrological and meteorological data concerning the aforementioned rivers. Any disputes arising in connection with the application of this Agreement shall be referred for settlement to a Mixed Bulgarian-Turkish Commission consisting of an equal number of experts from each Contracting Party. This Agreement is subject to ratification and shall enter into force 30 days after the date of the exchange of the instruments of ratification.