Corrections to admiralty nautical publications
All vessel should keep an updated list of nautical publications as per regulations set by IMO. If a new edition is published, this too shall be entered along with edition on board to keep a check until it is received.
The Nautical Publications will include Sailing Directions, List of Lights, Tide Tables, List of Radio signals, Nautical Almanac, Charts Catalogue, Mariners Handbook and others necessary for the safe navigation of the ship.
To correct the Sailing Directions (Pilots) , it is recommended that the correction index on the inside of the front cover is used to record weekly corrections (from Notices to Mariners / Digitrace) and also the affected pages in the Sailing Direction.
The corrections are filed in a dedicated file, in individual sections for each Sailing Direction on board. When using the Sailing Direction, reference should be first made to this index and then if any corrections are applicable to the concerned page, same can be consulted in the file.
For corrections to Admiralty List of Lights & Fog signals and Admiralty List of Radio Signals, these should be pasted on top of the existing (superseded) entry in the publication and the correction index at the front of the publication updated.
Smaller corrections may also be done by Pen, in the Publication.
ECDIS Corrections
Vessel must correct the ECDIS by inserting the disc received regularly from company in the computer. After correction, this should be written on the disc face by permanent marker and all such disks retained on board for 1 year.
Verification Of Corrections
The Master should verify the corrections from each Notice to Mariner on random charts or publication.
A prudent master shall also verify on a random basis, the ECDIS (where fitted) corrections by correlating with a paper chart notice.
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