Skip to main content
These can be sent in paper format (as outlined below) or sent using the ADMIRALTY H-Note App.
For emergency information affecting safety of life at sea, forward to: navwarnings@ukho.gov.uk
Alternatively, contact T:+44 (0)1823 353448 (direct line) or F: +44 (0)1823 322352.
What to include in Hydrographic Note submissions
The Hydrographic Note forms below contain information to help you complete any submission. These details are also included within Chapter 8 of the Mariner's Handbook (NP100). Please note that you should also contact the originating hydrographic office when navigating on IMO-approved, non-ADMIRALTY nautical charts.
|
Downloading and sending Hydrographic Note forms |
|---|
|
Downloading and sending Hydrographic Note forms Each of the a forms below contain accompanying instructions to help you complete any submissions. Simply choose the type of information you'd like to send and download the corresponding form. |
|
Downloading and sending Hydrographic Note forms |
|
Downloading and sending Hydrographic Note forms |
Please email your completed form to: sdr@ukho.gov.uk. For urgent information contact our Customer Services team: +44 (0) 1823 484444.
Once we’ve received and processed your data, we’ll acknowledge receipt of it by post or email.
Supporting information
Chart images and photographs - sent either with the hard copy or as attachments to the electronic copy - will help us to clarify your report.
Any format is acceptable. Those most commonly used are JPEG, TIF and AutoCAD. File sizes of the Hydrographic Notes range from approximately 61Kb to 70Kb; however the size of a returned email would depend on any additional attachments that have been made.
When you submit an H-Note via the App, you will receive an acknowledgement. The information you send will be used by the UKHO to take immediate action or considered for use in the next appropriate revision of a chart or publication.
Downloading the H-Note App
The H-Note App is available for free for iOS devices (iPhone, iPad and iPod touch) and Android devices. It can be downloaded from the app store links below: