Essential paper publications produced by the United Kingdom Hydrographic Office (UKHO) have been made available in digital form in ADMIRALTY Digital Publications (ADP). ADP contains identical information to corresponding paper publications and are approved as meeting SOLAS carriage provisions.

Included with ADP

ADMIRALTY Digital List of Lights (ADLL): The worldwide authority on light and fog signals.

ADMIRALTY Digital Radio Signals (ADRS): The worldwide authority on maritime radio signals.

ADMIRALTY Digital Radio Signals - Volume 2 (ADRS2): Aiding in the calculation of time and positions: the time-keeping and positional references.

ADMIRALTY Digital Radio Signals - Volume 6 (ADRS6): Contains essential radio information for maritime communication covering 3,600 locations around the world.

Admiralty TotalTide (ATT): Global tidal predictions are provided by. This real time service predicts both height and stream data.