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The VDU patches below will update certified libraries on Edition 35 to 40/24.

* 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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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 NtM
date
GEN01A Atlantic Ocean - 30°N to 6°N N/A   Windows
       920.0 KB
N/A -
GEN01B Atlantic Ocean - 6°N to 18°S N/A   Windows
       1.4 MB
N/A -
GEN01C Atlantic Ocean - 18°S to 42°S N/A   Windows
       367.5 KB
N/A -
GEN01D Atlantic Ocean - 42°S to 60°S N/A   Windows
       867.8 KB
N/A -