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The VDU patches below will update certified libraries on Edition 31 to 02/23.

* 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 NtM
date
A1315770 Bahia Manzanillo and Bahia de Santiago, Mexico N/A   Windows
       452.0 KB
N/A -
A1315810 Approaches to Mazatlan, Mexico N/A   Windows
       1.6 KB
N/A -
A1315961 Bahia Magdalena, Mexico N/A   Windows
       1.2 KB
N/A -
A1315963 Puerto San Bartolome, Mexico N/A   Windows
       613 Bytes
N/A -
A1315980 Bahia de San Quintin, Mexico N/A   Windows
       229.0 KB
N/A -
A1315990 Bahia de Todos Santos, Mexico N/A   Windows
       192.4 KB
N/A -
A1316010 Approach to San Diego Bay, California   Edition 31
       882.0 KB
  Windows
       335.7 KB
N/A -
A1316055 Approach to Santa Catalina Island, California   Edition 31
       598.6 KB
  Windows
       262.2 KB
N/A -
A1316080 Approach to Los Angeles, California   Edition 31
       1.0 MB
  Windows
       613.9 KB
N/A -
A1316150 Santa Cruz Island to Purisima Point, California   Edition 31
       769.8 KB
  Windows
       166.0 KB
N/A -
A1316300 Approaches to San Francisco Bay, California   Edition 31
       1.3 MB
  Windows
       663.6 KB
N/A -
A1356160 Northwest Coast of Hawaii   Edition 31
       620.3 KB
  Windows
       72.2 KB
N/A -
A1356200 Lanai, Molokai and Kahoolawe, Hawaii   Edition 31
       1.7 MB
  Windows
       1.7 KB
N/A -
A1356285 Island of Oahu, Hawaii   Edition 31
       1.1 MB
  Windows
       357.3 KB
N/A -
A1356300 Island of Kauai, Hawaii   Edition 31
       581.2 KB
  Windows
       242.6 KB
N/A -
A1356323 Tern Island, French Frigate Shoals   Edition 31
       657.4 KB
  Windows
       387.2 KB
N/A -
COA13A Isla Socorro/Baja California, Mexico/Isla de Guadalupe N/A   Windows
       608.7 KB
N/A -
COA13B San Diego to Columbia River   Edition 31
       6.9 MB
  Windows
       3.9 MB
N/A -
COA13C Hawaiian Islands   Edition 31
       1.8 MB
  Windows
       315.8 KB
N/A -
COA13D Gambia Shoal to Kure Atoll   Edition 31
       239.3 KB
  Windows
       465 Bytes
N/A -
COA13E Johnston Atoll   Edition 31
       107.5 KB
  Windows
       340 Bytes
N/A -
COA13F Christmas Island N/A   Windows
       370 Bytes
N/A -
GEN13A West Coast of United States-Hawaiian Islands, United States   Edition 31
       4.7 MB
  Windows
       1.2 MB
N/A -
GEN13B West Coast of Mexico-Hawaiian Islands, United States N/A   Windows
       326.0 KB
N/A -
GEN13C Pacific Ocean-Hawaiian Islands, United States   Edition 31
       4.7 MB
  Windows
       435.8 KB
N/A -
GEN13D Pacific Ocean   Edition 31
       296.1 KB
  Windows
       1.0 KB
N/A -
H1315760 Acapulco, Mexico N/A   Windows
       463.2 KB
N/A -
H1315765 Puerto Lazaro Cardenas, Mexico N/A   Windows
       89.8 KB
N/A -
H1315770 Manzanillo, Mexico N/A   Windows
       351.6 KB
N/A -
H1315790 Puerto Vallarta, Mexico N/A   Windows
       170.7 KB
N/A -
H1315810 Mazatlan, Mexico N/A   Windows
       225.9 KB
N/A -
H1315850 Guaymas, Mexico N/A   Windows
       478 Bytes
N/A -
H1315920 La Paz, Mexico N/A   Windows
       646 Bytes
N/A -
H1315950 Bahia San Lucas, Mexico N/A   Windows
       153.4 KB
N/A -
H1315961 San Carlos, Mexico N/A   Windows
       414.7 KB
N/A -
H1315990 Ensenada, Baja California, Mexico N/A   Windows
       117.8 KB
N/A -
H1316010 San Diego Bay, California   Edition 31
       1.8 MB
  Windows
       868.3 KB
N/A -
H1316030 San Clemente Island-North, California   Edition 31
       1.2 MB
  Windows
       1.2 KB
N/A -
H1316050 Avalon Bay, Catalina Island, California   Edition 31
       798.5 KB
  Windows
       586.6 KB
N/A -
H1316055 Oceanside Harbor, California   Edition 31
       311.7 KB
  Windows
       203.3 KB
N/A -
H1316060 Newport Bay, California   Edition 31
       931.2 KB
  Windows
       637.8 KB
N/A -
H1316080 Los Angeles Port and Long Beach Port, California   Edition 31
       1.8 MB
  Windows
       1.3 MB
N/A -
H1316085 Marina Del Rey, California   Edition 31
       992.9 KB
  Windows
       475.1 KB
N/A -
H1316120 Channel Islands Harbor and Port Hueneme, California   Edition 31
       984.5 KB
  Windows
       492.8 KB
N/A -
H1316155 Channel Islands, California   Edition 31
       1.9 MB
  Windows
       1.2 MB
N/A -
H1316180 Arguello Point, California   Edition 31
       682.6 KB
  Windows
       153.4 KB
N/A -
H1316200 San Luis Obispo Bay, California   Edition 31
       503.0 KB
  Windows
       300.9 KB
N/A -
H1316210 Morro Bay, California   Edition 31
       844.2 KB
  Windows
       201.3 KB
N/A -
H1316240 Monterey Harbor, California   Edition 31
       1,012.5 KB
  Windows
       228.1 KB
N/A -
H1316290 Half Moon Bay, California   Edition 31
       339.0 KB
  Windows
       77.5 KB
N/A -
H1316295 Southeast Farallon, California   Edition 31
       155.5 KB
  Windows
       467 Bytes
N/A -
H1316300 San Francisco Bay, California   Edition 31
       2.8 MB
  Windows
       1.7 MB
N/A -
H1316315 Oyster Point, California   Edition 31
       1.4 MB
  Windows
       1.2 MB
N/A -
H1316410 Mare Island Strait and Carquinez Strait   Edition 31
       4.1 MB
  Windows
       850.7 KB
N/A -
H1316510 Suisun Bay, California   Edition 31
       1.5 MB
  Windows
       303.7 KB
N/A -
H1316520 Medford Island to Stockton, California   Edition 31
       2.6 MB
  Windows
       1.3 MB
N/A -
H1316590 Sacramento River, California   Edition 31
       1.6 MB
  Windows
       264.1 KB
N/A -
H1316630 Bodega Harbor, California   Edition 31
       999.0 KB
  Windows
       610.0 KB
N/A -
H1316650 Fort Bragg and Noyo Anchorage, California   Edition 31
       1.8 MB
  Windows
       378.8 KB
N/A -
H1316655 Rockport Landing, California   Edition 31
       143.4 KB
  Windows
       364 Bytes
N/A -
H1316657 Shelter Cove, California   Edition 31
       172.7 KB
  Windows
       566 Bytes
N/A -
H1316670 Eureka, Humboldt Bay, California   Edition 31
       884.8 KB
  Windows
       315.5 KB
N/A -
H1316700 Crescent City Harbor, California   Edition 31
       565.3 KB
  Windows
       138.6 KB
N/A -
H1316770 Coos Bay, Oregon   Edition 31
       1.1 MB
  Windows
       369.1 KB
N/A -
H1316803 Siuslaw River, Oregon   Edition 31
       289.9 KB
  Windows
       89.8 KB
N/A -
H1316820 Yaquina Bay and River, Oregon   Edition 31
       1.3 MB
  Windows
       351.8 KB
N/A -
H1356046 Baker Island   Edition 31
       84.8 KB
  Windows
       402 Bytes
N/A -
H1356047 Kingman Reef   Edition 31
       150.6 KB
  Windows
       415 Bytes
N/A -
H1356048 Palmyra Atoll   Edition 31
       417.3 KB
  Windows
       547 Bytes
N/A -
H1356090 Hilo, Hawaii   Edition 31
       431.6 KB
  Windows
       122.7 KB
N/A -
H1356140 Kailua Bay, Hawaii   Edition 31
       213.2 KB
  Windows
       547 Bytes
N/A -
H1356145 Honokohau Harbor, Hawaii   Edition 31
       123.8 KB
  Windows
       49.3 KB
N/A -
H1356155 Keauhou Bay, Hawaii   Edition 31
       126.3 KB
  Windows
       402 Bytes
N/A -
H1356160 Kawaihae Bay, Hawaii   Edition 31
       440.8 KB
  Windows
       274.0 KB
N/A -
H1356180 Kahului, Maui, Hawaii   Edition 31
       552.0 KB
  Windows
       89.8 KB
N/A -
H1356200 Lahaina, Maui, Hawaii   Edition 31
       464.3 KB
  Windows
       68.4 KB
N/A -
H1356210 Manele Bay, Hawaii   Edition 31
       112.9 KB
  Windows
       421 Bytes
N/A -
H1356270 Kaneohe Bay, Oahu, Hawaii   Edition 31
       886.2 KB
  Windows
       893 Bytes
N/A -
H1356274 Port Waianae, Oahu, Hawaii   Edition 31
       348.4 KB
  Windows
       227.3 KB
N/A -
H1356275 Barber's Point to Maili Point, Hawaii   Edition 31
       335.3 KB
  Windows
       87.2 KB
N/A -
H1356280 Mamala Bay, Oahu, Hawaii   Edition 31
       2.0 MB
  Windows
       1.1 MB
N/A -
H1356290 Port Allen, Kauai, Hawaii   Edition 31
       193.1 KB
  Windows
       209.9 KB
N/A -
H1356300 Nawiliwili Bay, Kauai, Hawaii   Edition 31
       257.8 KB
  Windows
       159.8 KB
N/A -
H1356315 Haena Point to Kepuhi Point, Kauai, Hawaii   Edition 31
       467.1 KB
  Windows
       893 Bytes
N/A -
H1356318 Necker Island   Edition 31
       74.0 KB
  Windows
       345 Bytes
N/A -
H1356319 Nihoa Island   Edition 31
       82.1 KB
  Windows
       383 Bytes
N/A -
H1356323 French Frigate Shoals Islands   Edition 31
       736.5 KB
  Windows
       696 Bytes
N/A -
H1356325 Johnston Island Harbor   Edition 31
       530.9 KB
  Windows
       738 Bytes
N/A -
H1356326 West Coast of Laysan Island   Edition 31
       309.5 KB
  Windows
       757 Bytes
N/A -
H1356328 Welles Harbor/Sand and Eastern Islands   Edition 31
       1.1 MB
  Windows
       769.9 KB
N/A -