The Medwedian Democratic Federation is known for controlling its borders tightly. When it comes to the Oggen river, which forms the boundary between Medwedia and UL160 but deviates north from the border near Sejersted, the government made an exception in 2005 and created the Oggensejen Special Transport Corridor, which begins at the maritime boundary in the Bay of Predrussen and ends where the border joins the river.
The corridor, which is usable exclusively by freight transport, does not require a valid visa to be traversed. Nevertheless, the Federal Ministry of Border Control, Customs and Excise requires for a heavy toll to be paid per crew member and ton of cargo and for a list of all persons and goods present on the ship to be submitted at least one week prior to the usage of the corridor. Border patrol, military and police boats enforce the corridor and demand additional bribes.
Ships which deviate from the delimitation of the corridor are sunk immediately and without warning. The corridor is enforced by means of radar and signal buoys. Still, the Special Transport Corridor is used by 40 ships per day, on average.