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The VDU patches below will update certified libraries on Edition 22 to 19/23.

* 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.

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*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
A1900105 Approaches to Reykjavik and Keflavik, Iceland N/A   Windows
       591 Bytes
N/A -
A1900210 Djupavik, Iceland N/A   Windows
       2.1 KB
N/A -
A1900310 Akureyri, Iceland N/A   Windows
       1.0 KB
N/A -
A1900400 Seydisfjordur, Iceland N/A   Windows
       2.2 KB
N/A -
A1900581 Nunarsuit to Qaarsuarsuk, Greenland N/A   Windows
       1.2 KB
N/A -
A1900600 Ivigtut, Greenland N/A   Windows
       1.3 KB
N/A -
A1900610 Frederikshab Isblink, Greenland N/A   Windows
       1.3 KB
N/A -
A1932690 Approaches to Faroe Islands N/A   Windows
       1.8 KB
N/A -
A1932790 Scotland - West Coast N/A   Windows
       2.3 KB
N/A -
A1932830 Aultbea, Scotland; United Kingdom N/A   Windows
       194.7 KB
N/A -
A1932920 Broadford Bay, Scotland; United Kingdom N/A   Windows
       349.8 KB
N/A -
A1933830 Londonderry, Northern Ireland; United Kingdom N/A   Windows
       241.1 KB
N/A -
A1934150 River Shannon, Ireland N/A   Windows
       69.1 KB
N/A -
A1934260 Bantry Bay, Ireland N/A   Windows
       792 Bytes
N/A -
A1934360 Cork, Ireland N/A   Windows
       932 Bytes
N/A -
A1934480 Dublin, Ireland N/A   Windows
       113.6 KB
N/A -
A1935290 Approaches to Isles of Scilly, England N/A   Windows
       764 Bytes
N/A -
A1936460 Rade De Brest, France N/A   Windows
       753 Bytes
N/A -
COA19A Greenland - Southwest N/A   Windows
       1.2 KB
N/A -
COA19B Greenland - Southeast N/A   Windows
       2.5 KB
N/A -
COA19C Greenland - Northeast N/A   Windows
       2.3 KB
N/A -
COA19D Iceland - North Coast N/A   Windows
       1.7 KB
N/A -
COA19E Northern Ireland; Hebrides N/A   Windows
       310.8 KB
N/A -
COA19F Ireland N/A   Windows
       878 Bytes
N/A -
COA19G Celtic Sea; Saint George's Channel, Ireland N/A   Windows
       318.7 KB
N/A -
COA19H Faroe Islands (Denmark) N/A   Windows
       738 Bytes
N/A -
COA19I Jan Mayen (Norway) N/A   Windows
       453 Bytes
N/A -
COA19J Iceland - South Coast N/A   Windows
       237.4 KB
N/A -
GEN19A United Kingdom; Ireland N/A   Windows
       1.7 KB
N/A -
GEN19B Greenland; Iceland N/A   Windows
       14.1 KB
N/A -
H1900070 Keflavik, Iceland N/A   Windows
       885 Bytes
N/A -
H1900080 Hafnarfjordur, Iceland N/A   Windows
       624 Bytes
N/A -
H1900100 Reykjavik, Iceland N/A   Windows
       558 Bytes
N/A -
H1900105 Hvalfjordur, Iceland N/A   Windows
       698 Bytes
N/A -
H1900110 Akranes, Iceland N/A   Windows
       418 Bytes
N/A -
H1900250 Saudarkrokur, Iceland N/A   Windows
       525 Bytes
N/A -
H1900260 Siglufjordur, Iceland N/A   Windows
       437 Bytes
N/A -
H1900310 Akureyri, Iceland N/A   Windows
       437 Bytes
N/A -
H1900320 Husavik, Iceland N/A   Windows
       437 Bytes
N/A -
H1900400 Seydisfjordur, Iceland N/A   Windows
       591 Bytes
N/A -
H1900420 Neskaupstadur (Nordfjordur), Iceland N/A   Windows
       437 Bytes
N/A -
H1900430 Eskifjordur, Iceland N/A   Windows
       525 Bytes
N/A -
H1900440 Budareyri, Iceland N/A   Windows
       418 Bytes
N/A -
H1900580 Qaqortoq, Greenland N/A   Windows
       75.6 KB
N/A -
H1900600 Arsuk Fjord, Greenland N/A   Windows
       1.6 KB
N/A -
H1900620 Ravns Storo, Greenland N/A   Windows
       735 Bytes
N/A -
H1932680 Tvoroyri, Faroe Islands, Denmark N/A   Windows
       558 Bytes
N/A -
H1932690 Torshavn, Faroe Islands, Denmark N/A   Windows
       838 Bytes
N/A -
H1932702 Runavik, Faroe Islands, Denmark N/A   Windows
       558 Bytes
N/A -
H1932710 Kollafjordur, Faroe Islands, Denmark N/A   Windows
       437 Bytes
N/A -
H1933285 Sound of Islay, England, United Kingdom N/A   Windows
       456 Bytes
N/A -
H1933770 Belfast, Northern Ireland; United Kingdom N/A   Windows
       342 Bytes
N/A -
H1933820 Coleraine, Northern Ireland; United Kingdom N/A   Windows
       624 Bytes
N/A -
H1933830 Londonderry, Northern Ireland; United Kingdom N/A   Windows
       109.6 KB
N/A -
H1934130 River Shannon, Ireland N/A   Windows
       177.6 KB
N/A -
H1934240 Castletown Bearhaven, Ireland N/A   Windows
       437 Bytes
N/A -
H1934260 Bantry Bay, Ireland N/A   Windows
       456 Bytes
N/A -
H1934360 Cork, Ireland N/A   Windows
       946 Bytes
N/A -
H1934470 Dun Laoghaire, Ireland N/A   Windows
       418 Bytes
N/A -
H1934480 Dublin, Ireland N/A   Windows
       72.4 KB
N/A -
H1934490 Howth, Ireland N/A   Windows
       418 Bytes
N/A -