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Coastal Libraries return to region


The VDU patches below will update certified libraries on Edition 20 to 07/23.

* To download individual libraries or patches, right-click on the link and choose 'Save Target As' (for IE) or 'Save Link As' (for Netscape). To download multiple files at once, use the checkboxes to select the files, and click the 'Download' button at the bottom of the list. Once the files have been downloaded, the user must use Winzip 9.0 or earlier editions to extract from the .zip files.

Coastal Libraries     


*Rows highlighted below in this color are cancelled libraries since the latest New Edition.*
*Rows highlighted below in this color are new libraries available with the latest New Edition.*

IMPORTANT: As of 15 November 2021, NGA's Maritime Safety Office no longer supports DNC VDU UNIX patches. If you have questions or concerns please contact NGA via the Maritime Quality Feedback System (MQFS)

Number Name Download
full library
Download VDU Patch
Download VDU Patch 
Cancelled or
New Libraries
 N/A    N/A NtM
COA20A English Channel - Western Part N/A   Windows
       208.3 KB
N/A -
COA20B English Channel - Central Part N/A   Windows
       307.0 KB
N/A -
COA20C English Channel - Eastern Part N/A   Windows
       247.1 KB
N/A -
COA20D Strait of Dover; North Sea N/A   Windows
       338.9 KB
N/A -
COA20E North Sea; England, Scotland N/A   Windows
       196.6 KB
N/A -
COA20F North Sea; Scotland N/A   Windows
       186.6 KB
N/A -
COA20G Shetland Islands, Scotland N/A   Windows
       148.1 KB
N/A -
COA20H Faroe Islands, Denmark N/A   Windows
       453 Bytes
N/A -
COA20I Scotland, North Channel N/A   Windows
       313.4 KB
N/A -
COA20J Irish Sea N/A   Windows
       230.6 KB
N/A -
COA20K North Sea, Norwegian Sea N/A   Windows
       81.9 KB
N/A -