an assembly consisting of a light and its support and subsidiary structures,designed to give a light signal of a distinctive character to mark a geographical location or warn of a dangerous area,in order to assist navigation
Ems : from a line linking the Delfzijl and Knock lighthouses towards the open sea as far as latitude 53° 30' N and longitude 6° 45' E (i.e. somewhat outside the trans-shipment zone for dry-cargo carriers in the Alte Ems, taking account of the Ems-Dollart cooperation treaty).
