What is Hydrographic Notes?

Mariners are advised to notify and send hydrographic note if discover or suspect:

New dangers to navigation
Changes in aids to navigation
Errors in any navigational publication.

The Mariner’s Handbook (NP 100) Chapter 8 contains details of the information you’ll need to send.

If practicable you should also contact the originating hydrographic office when navigating on IMO-approved non-UKHO nautical charts. Please also comply with national and international law when forwarding such reports.

To see sample of Hydrographic note, Please click here.

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Mariners are advised to notify and send hydrographic note if discover or suspect:

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