Artikel 4

1. The Contracting States undertake to provide, subject to availability, at the points of entry and exit, and as required at points of trans-shipment, adequate means of transport and handling equipment for the movement of traffic in transit without unnecessary delay.
2. The Contracting States undertake to apply to traffic in transit, using facilities operated or administered by the State, tariffs or charges which, having regard to the conditions of the traffic and to considerations of commercial competition, are reasonable as regards both their rates and the method of their application. These tariffs or charges shall be so fixed as to facilitate traffic in transit as much as possible, and shall not be higher than the tariffs or charges applied by Contracting States for the transport through their territory of goods of countries with access to the sea. The provisions of this paragraph shall also extend to the tariffs and charges applicable to traffic in transit using facilities operated or administered by firms or individuals, in cases in which the tariffs or charges are fixed or subject to control by the Contracting State. The term “facilities” used in this paragraph shall comprise means of transport, port installations and routes for the use of which tariffs or charges are levied.
3. Any haulage service established as a monopoly on waterways used for transit must be so organized as not to hinder the transit of vessels.
4. The provisions of this article must be applied under the conditions of non-discrimination laid down in article 2, paragraph 1.