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The deck officer assigned responsibility for the vessel’s navigational watch on behalf of the master. The OOW maintains lookout, monitors position and passage plan, applies the collision regulations, manages bridge resources, responds to traffic and weather, and calls the master as required by standing orders and circumstances. The master’s presence does not automatically relieve the…
Historically, a port-health document stating that no infectious disease was known to exist at a vessel’s port of departure. A clean bill could support the granting of pratique at the next port, while a foul or suspected bill could lead to quarantine or inspection. Requirements and terminology varied between jurisdictions and periods. Modern health clearance…
The left-hand side of a vessel when facing forward towards the bow. Port and starboard stay fixed to the boat, regardless of which way a person is facing.
A documented plan for navigating a vessel safely from berth to berth or between defined operational limits. It is developed through appraisal, planning, execution and monitoring and considers route, depths, tides, weather, traffic, regulations, reporting, pilotage, contingencies, abort points and the vessel’s capabilities. The plan must remain usable and be monitored throughout the voyage. Changes…
An international satellite system that detects and locates compatible 406 MHz distress beacons and relays alerts to search-and-rescue authorities. Satellites and ground stations process alerts from EPIRBs, personal locator beacons and emergency locator transmitters. Encoded identity and, where available, GNSS position are routed through mission control centres to the appropriate rescue coordination centre. The system…
An intergovernmental organisation that oversees specified public-service obligations of recognised mobile satellite communication providers. IMSO originated as INMARSAT but no longer operates the commercial satellite network. It oversees providers recognised for GMDSS satellite services and coordinates aspects of the Long-Range Identification and Tracking system under IMO arrangements. Inmarsat is now a commercial service name and…
A shore-based service that interacts with vessel traffic to improve navigation safety, traffic efficiency and environmental protection in a defined area. Depending on its authority and service level, VTS may provide information, organise traffic and give navigational assistance using AIS, radar, radio, cameras, reports and local sensors. The master remains responsible for safe navigation, while…
The German recreational motor-craft operator licence for vessels within its statutory scope on maritime waterways. The requirement is linked to operation with an engine above the current statutory threshold on designated German sea waterways. It tests rules, navigation, safety and practical powerboat handling but is not limited by an offshore mileage radius in the way…
The German recreational-craft operator licence for vessels within its statutory scope on inland waterways. Whether it is required depends on the waterway, propulsion, engine output, craft and operator age under current German rules. Sailing endorsements or local provisions may apply in particular areas. The licence does not replace CEVNI knowledge, radio certification, vessel documents or…
A voluntary German coastal-skipper certificate for recreational yachts in waters up to 12 nautical miles from the mainland coast. The SKS assesses theory and practical competence in navigation, seamanship, weather, law, safety and yacht handling under sail, power or both, subject to the examination endorsement and current requirements. It is generally an advanced voluntary qualification…
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