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Region	Select ... DNCDX001 - South Atlantic Ocean - to NtM DNCDX002 - East Africa - to NtM DNCDX003 - Indian Ocean - to NtM DNCDX004 - Western Australia - to NtM DNCDX005 - Eastern Australia - to NtM DNCDX006 - South Pacific Ocean - to NtM DNCDX007 - South America - to NtM DNCDX008 - Southern Europe - to NtM DNCDX009 - Central Mediterranean - to NtM DNCDX010 - Middle East - to NtM DNCDX011 - South China Sea - to NtM DNCDX012 - Japan/North Pacific - to NtM DNCDX013 - North America West - to NtM DNCDX014 - Central America/Caribbean Sea - to NtM DNCDX015 - Gulf of Mexico/Straits of Florida - to NtM DNCDX016 - Bahamas/Bermuda - to NtM DNCDX017 - Eastern United States - to NtM DNCDX018 - Northeastern United States/Canada - to NtM DNCDX019 - Greenland/Iceland/United Kingdom - to NtM DNCDX020 - United Kingdom - to NtM DNCDX021 - Norway - to NtM DNCDX022 - Barents Sea - to NtM DNCDX023 - Northern Asia - to NtM DNCDX024 - Sea of Okhotsk - to NtM DNCDX025 - Gulf of Alaska - to NtM DNCDX026 - British Columbia - to NtM DNCDX027 - Arctic Ocean - to NtM DNCDX028 - Canada - to NtM DNCDX029 - Antarctica - to NtM

Coastal Libraries return to region

The VDU patches below will update certified libraries on Edition 44 to 20/23.

* 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.

Images

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 (Windows)	Download VDU Patch  (Unix)	Cancelled or New Libraries
				N/A	NtM date
COA23A	Vietnam	N/A	Windows        1.4 MB	N/A	-
COA23B	Southern China	N/A	Windows        1.5 MB	N/A	-
COA23C	Southeastern China, Taiwan	N/A	Windows        2.7 MB	N/A	-
COA23D	Eastern China	N/A	Windows        2.1 MB	N/A	-
COA23E	Northeastern China, Western Korea	N/A	Windows        2.1 MB	N/A	-
COA23F	Korea Strait	N/A	Windows        2.5 MB	N/A	-
COA23G	Eastern Korea, Russia	N/A	Windows        251.7 KB	N/A	-
COA23H	Ryukyu Islands, Japan	N/A	Windows        2.2 MB	N/A	-
COA23I	Northern Philippines, Luzon Strait	N/A	Windows        548.6 KB	N/A	-