The navigation system and the protection of the environment in the Black Sea

The geography of the Black Sea never was the most suitable to apply unconditionally the principle of free navigation. During centuries, it was, and still remains, under specific rules due to the particular strategic geopolitical importance of this region. So the navigation regime in this region is the adaptation of the principle of free navigation to it s specifics, which explains the almost permanent reviewing of the established regime. Among several international agreements, only the Convention of Montreux appeared to be most sustainable, but even in this case the geography of the region seems to weaken it nowadays. The Thesis reveals this frailty and shows that navigation on the Black Sea encounters the same problem. Consequently it shows the need to fill the juridical gap coming from the lack of rules of security and of environment protection in the Convention of Montreux, as in the regime of navigation of the Black Sea. The comparative study of the internal law of each of the waterfronts States and of the texts with regional focus points out as well the measures taken by the concerned States, but also the problem of adaptation of the regime of navigation in this region according to the current requirements of international law of the sea, especially concerning the security of navigation and the protection of marine environment.