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The VDU patches below will update certified libraries on Edition 22 to 11/26.

* 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.

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Coastal Libraries      General 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
(Windows)
Download VDU Patch 
(Unix)
Cancelled or
New Libraries
 N/A    N/A NtM
date
COA20A English Channel - Western Part N/A   Windows
       170.4 KB
N/A -
COA20B English Channel - Central Part N/A   Windows
       293.3 KB
N/A -
COA20C English Channel - Eastern Part N/A   Windows
       214.6 KB
N/A -
COA20D Strait of Dover; North Sea N/A   Windows
       1.6 MB
N/A -
COA20E North Sea; England, Scotland N/A   Windows
       162.1 KB
N/A -
COA20F North Sea; Scotland N/A   Windows
       271.9 KB
N/A -
COA20G Shetland Islands, Scotland N/A   Windows
       266.2 KB
N/A -
COA20H Faroe Islands, Denmark N/A   Windows
       453 Bytes
N/A -
COA20I Scotland, North Channel N/A   Windows
       882.2 KB
N/A -
COA20J Irish Sea N/A   Windows
       237.2 KB
N/A -
COA20K North Sea, Norwegian Sea N/A   Windows
       78.4 KB
N/A -
GEN20A Norwegian Sea; Greenland Sea N/A   Windows
       1.1 KB
N/A -
GEN20B British Isles N/A   Windows
       542.6 KB
N/A -