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Coastal Libraries return to region


The VDU patches below will update certified libraries on Edition 25 to 37/23.

* 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.

Norway       Svalbard, Norway      


*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
COA21A North Sea, Netherlands N/A   Windows
       243.8 KB
N/A -
COA21B North Sea, Denmark N/A   Windows
       366.1 KB
N/A -
COA21C Kattegat, Denmark - Sweden N/A   Windows
       159.1 KB
N/A -
COA21D Approaches to the Baltic Sea, Germany N/A   Windows
       244.1 KB
N/A -
COA21E Skagerrak, Norway, Sweden N/A   Windows
       132.9 KB
N/A -
COA21F Norway, North Sea N/A   Windows
       187.4 KB
N/A -
COA21G Norway, Norwegian Sea N/A   Windows
       133.1 KB
N/A -
COA21H Norwegian Sea, Norway N/A   Windows
       91.2 KB
N/A -
COA21I Greenland Sea, Svalbard N/A   Windows
       500 Bytes
N/A -