I. GENERAL PROVISIONS.
Article 1.
Navigation on the Danube is unrestricted and open to all flags on a footing of complete equality over the whole navigable course of the river, that is to say, between Ulm and the Black Sea, and over all the internationalised river system as defined in the succeeding article, so that no distinction is made, to the detriment of the subjects, goods and flag of any Power, between them and the subjects, goods and flag of the riparian State itself or of the State of which the subjects, goods and flag enjoy the most favoured treatment.
These provisions shall be read with the reservations contained in articles 22 and 43 Of the present Convention.
Article 2.
The intemationalised river system referred to in the preceding article consists of
The Morava and the Thaya where, in their courses, they form the frontier between Austria
and Czecho lovakia
The Drave from Barcs
The Tisza from the Mouth of the Szamos The Maros from Arad ;
Any lateral canals or waterways which may be constructed, whether to duplicate or improve naturally navigable portions of the river system, or to connect two naturally navigable portions of one of these waterways.
Article 3.
Freedom of navigation and the equal treatment of all flags are assured by two separate Commissions, that is to say, the European Commission of the Danube, of which the administrative sphere, as defined in Chapter II, extends over that part of the river known as the maritime Danube, and the International Commission of the Danube of which the administrative sphere, as defined in Chapter III, extends over the navigable fluvial Danube as well as over those waterways which are declared by article 2 to be international.