Admiralty Sailing Directions (ASD)
Admiralty Sailing Directions (ASD) provide essential information to support port entry and coastal navigation for all classes of ships at sea. Split across 76 volumes, coverage includes the world’s main commercial shipping routes and ports.
Each volume of Admiralty Sailing Directions (ASD) offers:
1) Information on navigational hazards, buoyage, pilotage, regulations, general notes on countries, port facilities, seasonal currents, ice and climatic conditions. This information, when used alongside official Admiralty charts, can help to increase situational awareness on the bridge.
2) High quality diagrams and photography to help bridge-crews understand critical information during the passage planning stage.
Also read: Emergency Towing Arrangement (ETA) requirement on-board. 3 Things to Know.
3) Worldwide official coverage to support safe and compliant navigation within main commercial shipping routes and ports. This coverage is split across 76 volumes.
In addition to paper format, each volume of Admiralty Sailing Directions (ASD) is available as an Admiralty e-Nautical Publication (AENP). AENPs bring improved efficiency, accuracy and access to information bridge crews need through electronic NM updates and simple search functionality.
The UKHO provides regular Admiralty Notices to Mariners (NMs) to ensure that Admiralty publications are maintained and up-to-date with the latest safety critical information.
Ref: Admiralty official website