INTERNATIONAL BRIDGE GENERAL ARTIGAS EXCLUSIVE PASSING ZONE Vessels with a length equal or higher than 30 metres have right of way over other vessels. Furthermore ships sailing downstream have priority over those sailing upstream. Crossings from coast to coast, head on situations, overtaking and anchoring are prohibited, unless unforeseen or unavoidable circumstances. See the provisions set forth in the Digest on the Use and Exploitation of the Uruguay River, published by the River Uruguay Executive Commission, CARU, for further information.