TRAFFIC SEPARATION SCHEME AND NAVIGATION THROUGH THE STRAIT OF ISTANBUL A) All vessels passing through the Strait of Istanbul shall navigate within the established Traffic Separation Schemes in compliance with the Rule-10 of the International Regulations for Preventing Collisions at Sea. B) For detailed information refer to Turkish Straits Navigation Guide. C) All vessels navigating at the approaches and through the Strait of Istanbul shall contact to the Vessel Traffic Services Center via VHF channels given below. Working........Sector Turkeli............Channel 11 Sector Kandilli...........Channel 12 Sector Kadikoy............Channel 13 Sector Marmara............Channel 14 Pilot....................................Channel 71 D) Foreign warships passing through the Turkish Straits are subject to the Montreux Convention dated 20 July 1936.