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The VDU patches below will update certified libraries on Edition 37 to 36/22.

* 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 NtM
date
A2616940 Willapa Bay, Columbia River, Oregon, Washinton, United States   Edition 37
       6.1 MB
  Windows
       1.3 MB
N/A -
A2617060 Gray's Harbor, Washington, United States   Edition 37
       1.0 MB
  Windows
       291.3 KB
N/A -
A2617100 Cape Flattery, Washington, United States   Edition 37
       1.4 MB
  Windows
       235.8 KB
N/A -
A2617160 Dungeness to Oak Bay, Washington, United States   Edition 37
       2.4 MB
  Windows
       1.1 MB
N/A -
A2617700 Puget Sound, Washington, United States   Edition 37
       1.5 MB
  Windows
       274.4 KB
N/A -
A2618060 Bellingham to Everett, Washington, United States   Edition 37
       3.3 MB
  Windows
       861.0 KB
N/A -
A2618150 Strait of Georgia, Vancouver, British Columbia, Canada N/A   Windows
       1.1 MB
N/A -
A2618422 Johnstone Strait, British Columbia, Canada N/A   Windows
       2.8 MB
N/A -
A2618520 Approach to Nanaimo, Vancouver Island, British Columbia, Canada N/A   Windows
       953.8 KB
N/A -
A2618660 Approach to Tsehum Harbor, British Columbia, Canada N/A   Windows
       490.1 KB
N/A -
A2618670 Southeastern Vancouver Island, British Columbia, Canada N/A   Windows
       983 Bytes
N/A -
A2618730 Ucluelet, Vancouver Island, British Columbia, Canada N/A   Windows
       1.2 MB
N/A -
A2618780 Clayoquot and Tofino, Vancouver Island, British Columbia, Canada N/A   Windows
       3.2 MB
N/A -
A2618805 Nootka Sound, Vancouver Island, British Columbia, Canada N/A   Windows
       5.7 MB
N/A -
A2618815 Cape Cook, Vancouver Island, British Columbia, Canada N/A   Windows
       1.2 MB
N/A -
A2618838 Queen Charlotte Strait, Western Portion, British Columbia, Canada N/A   Windows
       647.2 KB
N/A -
A2618875 Queen Charlotte Strait, Central-Eastern, British Columbia, Canada N/A   Windows
       1.7 MB
N/A -
A2618880 Fitz Hugh Sound and Smith Sound, British Columbia, Canada N/A   Windows
       1.6 MB
N/A -
A2618890 King Island Channels, British Columbia, Canada N/A   Windows
       2.1 KB
N/A -
A2618915 Queens Sound, British Columbia, Canada N/A   Windows
       3.0 MB
N/A -
A2618920 Princess Royal Channel, British Columbia, Canada N/A   Windows
       726.9 KB
N/A -
A2618921 Grenville Channel, British Columbia, Canada N/A   Windows
       654.4 KB
N/A -
A2618950 Prince Rupert, British Columbia, Canada N/A   Windows
       2.1 MB
N/A -
A2619040 Skidegate Harbor, British Columbia, Canada N/A   Windows
       815 Bytes
N/A -
A2619130 Ketchikan, Alaska, United States   Edition 37
       2.9 MB
  Windows
       1.4 KB
N/A -
A2619290 Sumner Strait, Southern Part, Alaska, United States   Edition 37
       2.3 MB
  Windows
       922 Bytes
N/A -
A2619300 Wrangell, Alaska, United States   Edition 37
       5.3 MB
  Windows
       1.1 MB
N/A -
A2619580 Juneau, Alaska, United States   Edition 37
       691.5 KB
  Windows
       614 Bytes
N/A -
COA26A Oregon and Washington State, United States   Edition 37
       2.1 MB
  Windows
       577.7 KB
N/A -
COA26B Southern British Columbia, Canada N/A   Windows
       1.7 MB
N/A -
COA26C Northern British Columbia, Canada N/A   Windows
       1.7 MB
N/A -
COA26D Alaska, United States N/A   Windows
       3.0 MB
N/A -
GEN26A Oregon and Washington State, United States   Edition 37
       720.6 KB
  Windows
       122.7 KB
N/A -
GEN26B British Columbia, Canada N/A   Windows
       118.6 KB
N/A -
GEN26C Alaska, United States   Edition 37
       1.3 MB
  Windows
       986 Bytes
N/A -
H2616837 Nehalem River, Oregon, United States   Edition 37
       306.7 KB
  Windows
       581 Bytes
N/A -
H2616940 Portland, Oregon, United States   Edition 37
       1.7 MB
  Windows
       696.5 KB
N/A -
H2617090 Quillayute River Entrance, Washington, United States   Edition 37
       154.4 KB
  Windows
       34.7 KB
N/A -
H2617100 Neah Bay, Washington, United States   Edition 37
       1.0 MB
  Windows
       908 Bytes
N/A -
H2617120 Port Angeles, Washington, United States   Edition 37
       332.8 KB
  Windows
       85.1 KB
N/A -
H2617160 Dungeness to Port Townsend, Washington, United States   Edition 37
       985.0 KB
  Windows
       174.0 KB
N/A -
H2617230 Bangor, Port Townsend, Washington, United States   Edition 37
       2.8 MB
  Windows
       526.8 KB
N/A -
H2617660 Olympia, Washington, United States   Edition 37
       909.8 KB
  Windows
       208.2 KB
N/A -
H2617700 Tacoma, Washington, United States   Edition 37
       880.9 KB
  Windows
       861 Bytes
N/A -
H2617730 Seattle to Bremerton, Washington, United States   Edition 37
       1.8 MB
  Windows
       673.8 KB
N/A -
H2617750 Lake Washington Ship Canal, Washington, United States   Edition 37
       2.3 MB
  Windows
       1.4 KB
N/A -
H2617790 Everett Harbor, Washington, United States   Edition 37
       1.2 MB
  Windows
       638.3 KB
N/A -
H2617800 Oak / Crescent Harbor, Washington, United States   Edition 37
       343.4 KB
  Windows
       230.3 KB
N/A -
H2617940 San Juan Island, Washington, United States   Edition 37
       4.2 MB
  Windows
       813.7 KB
N/A -
H2618040 Rosario Strait, Washington, United States   Edition 37
       4.1 MB
  Windows
       1.0 MB
N/A -
H2618050 Bellingham, Washington, United States   Edition 37
       829.1 KB
  Windows
       861 Bytes
N/A -
H2618060 Drayton Harbor, Washington, United States   Edition 37
       241.3 KB
  Windows
       880 Bytes
N/A -
H2618100 Fraser River, British Columbia, Canada N/A   Windows
       1.4 KB
N/A -
H2618150 Vancouver, British Columbia, Canada N/A   Windows
       902.7 KB
N/A -
H2618210 Gambier Island, British Columbia, Canada N/A   Windows
       434.5 KB
N/A -
H2618275 Welcome Passage, British Columbia, Canada N/A   Windows
       983 Bytes
N/A -
H2618280 Pender Harbor, British Columbia, Canada N/A   Windows
       614 Bytes
N/A -
H2618300 Sturt Bay and Vananda Cove, British Columbia, Canada N/A   Windows
       422 Bytes
N/A -
H2618340 Powell River and Westview, British Columbia, Canada N/A   Windows
       422 Bytes
N/A -
H2618355 Desolation Sound to Toba Inlet, British Columbia, Canada N/A   Windows
       1.3 MB
N/A -
H2618460 Comox, Vancouver Island, British Columbia, Canada N/A   Windows
       1.1 KB
N/A -
H2618480 False Bay, British Columbia, Canada N/A   Windows
       548 Bytes
N/A -
H2618518 Nanoose Harbor, Vancouver Island, British Columbia, Canada N/A   Windows
       544.1 KB
N/A -
H2618520 Nanaimo, Vancouver Island, British Columbia, Canada N/A   Windows
       616.6 KB
N/A -
H2618530 Ladysmith Harbour, Vancouver Island, British Columbia, Canada N/A   Windows
       67.4 KB
N/A -
H2618540 Telegraph and Preedy Harbour, British Columbia, Canada N/A   Windows
       135.6 KB
N/A -
H2618560 Chemainus Bay, Vancouver Island, British Columbia, Canada N/A   Windows
       95.0 KB
N/A -
H2618570 Osborn Bay, Vancouver Island, British Columbia, Canada N/A   Windows
       65.7 KB
N/A -
H2618575 Montague Harbour, British Columbia, Canada N/A   Windows
       441 Bytes
N/A -
H2618580 Genoa Bay, British Columbia, Canada N/A   Windows
       197.5 KB
N/A -
H2618600 Ganges Harbour and Long Harbour, British Columbia, Canada N/A   Windows
       556.3 KB
N/A -
H2618650 Bedwell Harbour, British Columbia, Canada N/A   Windows
       983 Bytes
N/A -
H2618660 Tsehum Harbor, British Columbia, Canada N/A   Windows
       564.8 KB
N/A -
H2618669 Oak Bay, Vancouver Island, British Columbia, Canada N/A   Windows
       647 Bytes
N/A -
H2618670 Victoria Harbour, Vancouver Island, British Columbia, Canada N/A   Windows
       195.2 KB
N/A -
H2618680 Esquimalt Harbour, Vancouver Island, British Columbia, Canada N/A   Windows
       460 Bytes
N/A -
H2618690 Sooke, Vancouver Island, British Columbia, Canada N/A   Windows
       815 Bytes
N/A -
H2618730 Port Alberni, Vancouver Island, British Columbia, Canada N/A   Windows
       1.2 MB
N/A -
H2618815 Kyuquot, Vancouver Island, British Columbia, Canada N/A   Windows
       460 Bytes
N/A -
H2618816 Fair Harbour, Vancouver Island, British Columbia, Canada N/A   Windows
       365 Bytes
N/A -
H2618838 Bull Harbour, British Columbia, Canada N/A   Windows
       422 Bytes
N/A -
H2618840 Port Hardy, Vancouver Island, British Columbia, Canada N/A   Windows
       441 Bytes
N/A -
H2618860 Alert Bay, Vancouver Island, British Columbia, Canada N/A   Windows
       61.5 KB
N/A -
H2618872 Port McNeill, British Columbia, Canada N/A   Windows
       58.3 KB
N/A -
H2618874 Blunden Harbour, British Columbia, Canada N/A   Windows
       482 Bytes
N/A -
H2618885 Namu Harbour, British Columbia, Canada N/A   Windows
       441 Bytes
N/A -
H2618890 Bella Coola, British Columbia, Canada N/A   Windows
       422 Bytes
N/A -
H2618900 Ocean Falls, British Columbia, Canada N/A   Windows
       460 Bytes
N/A -
H2618902 Gunboat Passage, British Columbia, Canada N/A   Windows
       422 Bytes
N/A -
H2618904 Troup Narrows, British Columbia, Canada N/A   Windows
       468 Bytes
N/A -
H2618905 Shearwater, British Columbia, Canada N/A   Windows
       441 Bytes
N/A -
H2618915 Bella Bella, British Columbia, Canada N/A   Windows
       441 Bytes
N/A -
H2618920 Butedale Harbour, British Columbia, Canada N/A   Windows
       403 Bytes
N/A -
H2618921 Union Passage, British Columbia, Canada N/A   Windows
       422 Bytes
N/A -
H2618922 Baker Inlet, British Columbia, Canada N/A   Windows
       441 Bytes
N/A -
H2618925 Kitimat Harbour, British Columbia, Canada N/A   Windows
       345.3 KB
N/A -
H2618950 Prince Rupert Harbour, British Columbia, Canada N/A   Windows
       535.6 KB
N/A -
H2619050 Queen Charlotte, British Columbia, Canada N/A   Windows
       515 Bytes
N/A -
H2619055 Alliford Bay, British Columbia, Canada N/A   Windows
       548 Bytes
N/A -
H2619130 Ketchikan Harbor, Alaska, United States   Edition 37
       987.7 KB
  Windows
       313.0 KB
N/A -
H2619210 Wrangell Harbor, Alaska, United States   Edition 37
       766.6 KB
  Windows
       1.2 KB
N/A -
H2619222 Lyman Anchorage, Alaska, United States   Edition 37
       1.3 MB
  Windows
       1.2 KB
N/A -
H2619300 Petersburg, Alaska, United States   Edition 37
       2.7 MB
  Windows
       466.7 KB
N/A -
H2619310 Northern Keku Strait, Alaska, United States   Edition 37
       2.2 MB
  Windows
       407.9 KB
N/A -
H2619530 Funter Bay, Alaska, United States   Edition 37
       183.7 KB
  Windows
       581 Bytes
N/A -
H2619580 Juneau Harbor, Alaska, United States   Edition 37
       1.5 MB
  Windows
       301.6 KB
N/A -