Click to visit NGA home. Click to visit NGA home.
Top portion of NGA banner. Clip image for NGA banner.
 
Search NGA:
Advanced Search
spacer
 Find...
Notice to Mariners
Publications
Broadcast Warnings
ONI Reports
ASAM Search
HYDROARC Reports
MODU Search
Product Catalog
Misc. Products
space
 Act...
Submit Report
Subscribe to NtM
Subscribe to BW
Take a Survey
space
 View...
Nautical Calculators
Geographic Locator
DNC Homepage
space
This is a U.S. Government system.  Before continuing, read this  disclaimer.
Problems? Contact NGA.
space
space
space

Maritime Products - Did You Know... ?spacer

spacer

In an effort to improve our outreach to the Fleet, NGA's Maritime Safety Office issues a series of informal e-mails in the form of a "Did you know...?" rhetorical question. The intent is to mention an aspect of the Office's products and services in the hope that users will discover something new, or recall something they had forgotten due to infrequent usage.

Topics issued as of 4 November 2015:

DNC15 Edition 36 DLA Distribution Issue
Timely Receipt of Broadcast Warnings
Labeling change to Digital Nautical Chart DVD's
Electronic Chart and Publication coverage of the Great Lakes
NGA's Worldwide Navigational Warnings Service (WWNWS) and NAVTEX
NGA Maritime Safety Office overview brief
Defense Logistics Agency (DLA) now prints NOAA charts
Remote Replication Service changes
SIPR Site Improved
NGA's recommendation on the practice of updating DNC's with NtM messages
NGA's guidance on scaling Digital Nautical Charts (DNC) in ECDIS-N
NIPRNet DLA Map Catalog online application will be unavailable starting in August 2013
DLA Map Cataloging Webinar Training
DLA Map Catalog email subscription service
NOAA Print-on-Demand charts available on NGA's NIPRNet/SIPRNet/JWICS
New option output for LIST OF LIGHTS data
MarINT KMZ on the SIPRNet
Port Directories
Broadcast Warnings Enhancements
Fleet Guides publications now available on NIPRNet/SIPRNet/JWICS
New media format for Digital Nautical Publications product
NGA relocation to new facility
Defense Logistics Agency (DLA)
Remote Replication Site - Camp Pendleton
DNC source information
Tidal prediction publications
Bottom Contour charts replaced
DNC Library to nautical chart cross-reference lists
Black Sea Pilot now available as a digital publication
Marginal Notes in DNC
DNC Library Data Quality (DQY) Layer
Website URL Changes
Customer suggestion implemented
World Port Index
Printing chartlet files correctly
Frequently Asked Questions (FAQ)
Adding features to NGA charts
Multiple installations of TotalTide
Ordering COGENT
Improve Maritime products by submitting source
Notice to Mariners - HYDROGRAM
Tactical Ocean Data (TOD)
Requests for United Kingdom Hydrographic Office (UKHO) products
PKI Registration
Digital Nautical Chart (DNC) Libraries
Digital Nautical Publications
Enterprise Product-on-Demand (EPODS) charts
"Burial At Sea" charts
Adopting "Bilateral" charts
Distribution of NGA Products
Contact Information


DNC15 Edition 36 DLA Distribution Issue

Did you know...

...that the late-October DNC15 Edition 36 Discs distributed from DLA were discovered to contain the incorrect DNC VDU data for all 29 DNCs, instead of the DNC15 Edition 36 data listed on the label? Once it was determined this was a consistent problem for all the relevant DNC Discs produced, a customer notification process was begun by both DLA and NGA's WWNWS (via watch message). These incorrect discs are to be disposed of and the customer can expect a new DNC15 Edition 36 Disc to be distributed from DLA immediately. Additionally, in the interim, the correct DNC15 Edition 36 data is available from the various NGA Websites listed below:

WWW: https://dnc.nga.mil/
NIPRNET: https://dnc.geo.nga.mil
SIPRNET: http://dnc.nga.smil.mil/


Timely Receipt of Broadcast Warnings

Did you know...

...Navigators, Assistant Navigators and Senior Quartermasters/Operations Specialists must ensure that the latest safety broadcasts messages, LNtM, NtM, BNM, NAVAREAs, HYDROPACs, HYDROLANTs and HYDROARCs (if applicable) are up-to-date and applied to area of responsibility prior to getting underway? Messages indicating Hazardous Operations or anything concerning the Safety of Navigation must be properly labeled or highlighted on hard-copy charts and Mariner Object Layers within VMS. (Reference, COMNAVSURFORINST/COMNAVAIRFORINST 3530.4B) Each vessel should be part of one or more of NGA's Address Information Groups (AIG) for NAVAREA IV/HYDROLANTs, NAVAREA XII/HYDROPACs, or HYDROARCs and will receive corresponding messages from that AIG automatically. The Navigator can also download the recent and in-force messages via the Maritime Safety Information Website. In addition, if a vessel is not in receipt of message traffic, please check if you are indicated in an AIG or contact NAVSAFETY to be added at:

NAVSAFETY
1-571-557-5455 (COMM)
547-5455 (DSN)
NAVSAFETY@NGA.MIL


Labeling change to Digital Nautical Chart DVD's

Did you know...

...due to DVD space limitations for labeling DNC's, the Notice to Mariners Date i.e. "Notice to Mariners: 12/14" can now be found within the disc's Read Me file? The Notice to Mariners Date indicates the DNC corrected through date for that relevant Notice to Mariners.

The Effective/Edition/Release date is always two weeks after the Notice to Mariners Date.


Electronic Chart and Publication coverage of the Great Lakes

Did you know...

...that NGA does not duplicate National Oceanic and Atmospheric Administration (NOAA) chart coverage of the Great Lakes? NOAA's Electronic Navigation Chart (ENC) program creates and maintains the electronic chart coverage of the Great Lakes, along with the rest of the U.S. coasts, and can be downloaded for free at: http://www.charts.noaa.gov/ENCs/ENCs.shtml. NOAA ENC is based on the International Hydrographic Organization (IHO) Transfer Standard for Digital Hydrographic Data, Publication S-57 and is approved by the International Maritime Organization (IMO) for SOLAS class vessels to use for navigation in an Electronic Chart Display and Information System (ECDIS). ENCs are updated weekly and include all of the latest Notice to Mariners corrections.

To complement ENC's and standard nautical charts, NOAA produces the United States Coast Pilot No. 6 which covers the Great Lakes system, including Lakes Ontario, Erie, Huron, Michigan, and Superior, their connecting waters, and the St. Lawrence River. Topics in the Coast Pilot include channel descriptions, anchorages, bridge and cable clearances, currents, tide and water levels, prominent features, pilotage, towage, weather, ice conditions, wharf descriptions, dangers, routes, traffic separation schemes, small-craft facilities, and federal regulations applicable to navigation.


NGA's Worldwide Navigational Warnings Service (WWNWS) and NAVTEX

Did you know...

...NGA as part of the Worldwide Navigational Warnings Service (WWNWS) does not promulgate safety of navigation messages which fall within a NAVTEX coverage area with the exception of distress messages? NAVTEX is an international, automated system for instantly distributing maritime navigational warnings, weather forecasts and warnings, search and rescue notices and similar information to ships. The broadcast coverage area for NAVTEX stations vary between 200 and 500 nautical miles from shore. Since it is a requirement, regulated by the Safety of Life at Sea (SOLAS) Convention, for all cargo vessels over 300 tons and passenger vessels on international voyages, to use NAVTEX receivers while operating in NAVTEX covered areas, NGA's Maritime Safety Watch does not rebroadcast those messages, with the exception noted above. If your vessel does not have or is not using a NAVTEX receiver while transiting through a NAVTEX covered area you will fail to receive urgent Safety of Navigation messages, including gunnery, missile and rocket firing exercises, major navigational aids outages, port closures, hazardous wrecks, and large floating debris.


NGA Maritime Safety Office overview brief

Did you know...

...the 4th Qtr Digital Nautical Publications - Quarterly Update, 2013 DVD now contains the NGA Maritime Safety Office overview brief? This is the brief given at the CSCS Navigator/Senior Quartermaster Refresher course which provides an overview of NGA's mission, the Maritime Safety Office products and services, and important contact information for NGA and DLA. The brief is located under the Additional Info tab within the Quarterly.


Defense Logistics Agency (DLA) now prints NOAA charts

Did you know...

...that effective April 13, 2014, the Federal Aviation Administration (FAA) will no longer print traditional lithographic NOAA charts? The Defense Logistics Agency (DLA) has taken over the responsibility to provide hardcopy NOAA charts to DoD customers. After April 13 DLA will be doing most of the printing of NOAA standard nautical charts, although some charts will be done by qualified contractors - the customer will not know the difference. DoD customers requiring NOAA charts outside of their automatic distribution will be receiving NOAA Print on Demand charts updated to include the latest Notice to Mariners corrections.

The map support offices located worldwide will continue to keep uncorrected stock on hand for their respective AORs which will be based on demand for the charts. Customer wanting corrected Print on Demand charts must order them using one of the following methods:

  1. Defense Logistics Agency's Federal Mall (FedMall) at https://www.fedmall.mil/.
  2. Defense Logistics Agency's Map Catalog.
  3. or visit the nearest DLA Map Support Office where a representative would either, if available, give you the chart or assist you in ordering it.

For more information regarding this change please contact DLA's Mapping Customer Operations at Phone: 800-826-0342; DSN: 695-6500.


Remote Replication Service changes

Did you know...

...that NGA's Remote Replication Service no longer prints standard nautical charts, except in emergency situations? The mission of NGA's Remote Replication System (RRS) is to provide custom geospatial intelligence (GEOINT) solutions on demand for Military customers. A printed standard nautical chart is not considered a custom product, and the service has been discontinued. If your command needs an NGA or NOAA standard nautical chart please order the chart(s) through one of the following methods:

  1. Defense Logistics Agency's Federal Mall (FedMall) at https://www.fedmall.mil/.
  2. Defense Logistics Agency's Map Catalog.
  3. or visit the nearest DLA Map Support Office.

For more information regarding RRS and its services please contact Dennis Osborne Ph: 571-557-6810 DSN: 547-6810 or e-mail: dennis.j.osborne@nga.mil.


SIPR Site Improved

Did you know...

...that NGA has now mirrored our Maritime Safety Information Unclassified Web site on the SIPRNet? NGA's Maritime Safety SIPR site, at http://msi.nga.smil.mil, now provides the same capabilities as our Internet Web site (https://msi.nga.mil/NGAPortal/MSI.portal - case sensitive) including downloadable Notice to Mariners files, database searches, digital publications, and navigational warnings. The new DNC SIPRNet site (http://dnc.nga.smil.mil/) has DNC Libraries and VDU files available for download. The original DNC SIPRNet site located at http://www.geoint.nga.smil.mil/products/dnc1/index.php remains in service with only Updated Libraries available for download.

With the new transition to the SIPR side, there are some functions that have not transferred yet such as MAPIT and NIPR links. NGA is striving to correct these issues and appreciates any feedback you have.


NGA's recommendation on the practice of updating DNC's with NtM messages

Did you know...

...NGA's Maritime Safety Office STRONGLY recommends Navigators aboard Navy vessels cease the practice of using NGA's weekly Notice to Mariners (NtM) to update the Digital Nautical Charts (DNC)?

The NTM is intended solely to address changes affecting safety of navigation for hardcopy charts and nautical publications. DNC was not designed to be updated by NtM. When developing the DNC, NGA and the Navy decided the best way to apply corrections was the 28-day Vector Product Format Database Update (VDU) cycle. Urgent hazards to navigation are promulgated via the NGA's World Wide Navigational Warning Service maritime watch messages, which are timelier than NtM and VDU cycles.

NtM's are written to the scale and datum of the paper chart they are correcting, DNC is on the WGS84 datum and may be scaled differently from hardcopy charts in the same area. Therefore, it is not prudent to use NtM to update the DNC. Placement errors of up to a nautical mile are possible due to these differences.

DNC and NtM are separate product lines, updated at different rates. In the vast majority of locations, DNC information is more current than NtM data.

NGA's Maritime Safety Office continues to endorse the VDU method as the comprehensive update mechanism and highly recommends the U.S. Navy discontinue the practice of updating the DNC with weekly NtM.

Any questions concerning this guidance should be directed to NGA's DNC Program Manager, phone: 571-557-5295, e-mail: MCDDNC@nga.mil.


NGA's guidance on scaling Digital Nautical Charts (DNC) in ECDIS-N

Did you know...

...the DNC portfolio was originally created by digitizing paper Standard Nautical Charts (SNC) and organizing them into corresponding DNC libraries based on the scale of the original paper SNC? The resulting DNC database is only as accurate as the source data of the paper charts used to create them. While the National Geospatial-Intelligence Agency's Maritime Safety Office constantly improves the accuracy of the DNC with newer digital sources, the mariner should be aware that many of the features and hazards in the SNC used to build the DNC database are based upon older surveys that pre-date the Global Positioning System (GPS). Additionally, plotted accuracies of navigation hazards and soundings are constrained by the cartographic scale of the chart. Since GPS became operational, the accuracy of a ship's position using GPS now often exceeds the accuracy of the underlying charts.

Displaying DNC data at a scale larger than the data compilation scale is known as Over-Scaling. This is an unsafe practice because it gives the mariner a false sense of the positional accuracy of navigation hazards and incorrect distance between features, which could lead to unsafe mission planning and navigation. This is a particular concern for the small-scale General and Coastal DNCs. The dangers of over-scaling DNC data is briefly discussed in the Submarine Operations Manual (SOM), the Navigation Department Organization and Regulations Manual (NAVDORM), and the American Practical Navigator (Pub No.9).

NGA strongly recommends that ECDIS-N, operating in either the auto or manual mode, display DNC libraries at their data compilation scale vice relying on a fixed scale scheme referenced to the DNC’s navigation purpose (General, Coastal, Approach, or Harbor). When navigating on an over-scaled DNC, fleet operators should understand the operational risks inherent in over-scaling, especially during operations in the vicinity of charted hazards and shoal water.

Any questions concerning this guidance should be directed to NGA's DNC Program Manager, phone: 571-557-5295, e-mail: MCDDNC@nga.mil.


NIPRNet DLA Map Catalog online application will be unavailable starting in August 2013

Did you know...

...that due to high cost combined with low use the NIPRNet DLA Map Catalog online application will be unavailable starting in August 2013? An interactive map catalog is being developed within DOD EMALL and will be available soon. A standalone desktop version of the DLA Map Catalog is available for use during this transition period. You may download the desktop version by navigating to the Main Page within DOD EMALL and clicking on the "DLA Map Catalog" link under DOD EMALL at the bottom of the page. Follow the instructions on the page to unzip the application to your computer. The application is also available on CD-ROM and can be ordered from DLA using DOD EMALL or another approved ordering method; NSN = 7644015433809. Contact the DLA Map Catalog Team at DLAMCUC@dla.mil or via phone 269-961-4757/DSN: 661-4757 for more information.


DLA Map Cataloging Webinar Training

Did you know...

...that the Defense Logistics Agency (DLA) hosts monthly Defense Connect Online (Webinars) for the DLA Map "Chart" Catalog? The Webinars take place on the first Wednesday of the month from 1300-1500 Eastern Time. Simply turn up your speakers and navigate to https://connect.dco.dod.mil/mapcat and that's it. Click here for more information. Please direct any questions to Robert B. Rogers, System Manager, DLA Map Catalog, (269) 961-5741, DSN: 661-5741 e-mail: Robert.B.Rogers@dla.mil.


DLA Map Catalog email subscription service

Did you know...

...Defense Logistics Agency (DLA) Map Catalog CD (Standalone Catalog) data updates are now available through an email subscription? Choose NIPRNet or SIPRNet, then choose a combination of Aero, Hydro, Digital and Topo products and how often you wish to receive the email updates (Weekly and monthly options currently available). E-mail dlamcuc@dla.mil for more information or to subscribe.


NOAA Print-on-Demand charts available on NGA's NIPRNet/SIPRNet/JWICS

Did you know...

...that NOAA Print-on-Demand charts are now available on NGA's:

NIPRNet at https://www.geointel.nga.mil/products/dnc/epods/noaa.php
SIPRNet at http://www.geoint.nga.smil.mil/products/dnc1/epods/noaa.php
JWICS at http://www.geoint.nga.ic.gov/products/dnc1/epods/noaa.php

for download and printing? NOAA Print-on-Demand charts are updated on a weekly basis and include all of the latest critical chart corrections. Each chart is official and should be updated from the corrected through dates shown in the lower left corner of the chart. The charts are .pdf files and can be printed at either one of the following global Remote Replication Service centers:

CONUS:

  • RRS Pentagon - Phone - (703) 614-0411
  • RRS Norfolk (Office Atlantic) - Phone - (757) 444-0660
  • RRS Fort Bragg - Phone - (910) 570-5244
  • RRS Fort Sam Houston (SOUTHCOM/USARSO) - Phone - (210) 295-6177
  • RRS MacDill AFB (Tampa) (CENTCOM/SOCOM) - Phone - (813) 529-2470/71
  • RRS Miami (HQ SOUTHCOM) - Phone - (305) 437-3227
  • RRS Camp Pendleton (Marines) - Phone - (760) 725-5502

OCONUS:

  • RRS Bahrain (CENTCOM) - Phone - 011-973-17-85-3570
  • RRS Okinawa (PACOM) - Phone - 011-81-611-723-4455
  • RRS Hawaii (PACOM) - Phone - (808) 448-2092
  • RRS Stuttgart (USEUCOM) - Phone - 011-49-711-680-6200
  • RRS Stuttgart (AFRICOM) - Phone - 011-49-711-729-3224

or by using a large-format printer.

For more information, contact NGA via e-mail to: MCDFLA@nga.mil.


New option output for LIST OF LIGHTS data

Did you know...

...that the NGA WWW site has a new option for the output of LIST OF LIGHTS data? You may now choose to retrieve the data in a tab-delimited text format. This facilitates importing the data into commonly available spreadsheet and database applications. For more information, please write to MCDFLA@nga.mil.

Note: Special characters are used in the tab-delimited results. A translation key is available at https://msi.nga.mil/MSISiteContent/StaticFiles/LOL_SubstituteCharacters.pdf.


MarINT KMZ on the SIPRNet

Did you know...

...that NGA has KMZ files for use with Google Earth available on the SIPRNet? The MarINT files provide quick access to Maritime holdings (such as DNC areas, publication areas and data, hardcopy footprints, WORLD PORT INDEX data, and WWNWS areas).

For more information, go to http://www.intelink.sgov.gov/wiki/Marint on the SIPRNet.


Port Directories

Did you know...

...that the Port Directories are not an NGA product? They are TRANSCOM products and can be found on the TRANSCOM SIPRNet Web page. On the SIPRNet, go to http://transcom-jioc.dodiis.smil.mil/transcom/default.jsp/, and click on the "Ports" radio button under "Infrastructure Search". The search can be filtered by AOR or country.

For more information, contact NGA via e-mail to: MCDPubs@nga.mil.


Broadcast Warnings Enhancements

Did you know...

...that the NGA WWW page for the Broadcast Warnings has been enhanced? It now has a timestamp indicating when the database was last updated. A second enhancement is that the user may now query for ALL of the messages, whether they are "in-force" or cancelled.

For more information, contact NGA via e-mail to: MCDPubs@nga.mil.


Fleet Guides publications now available on NIPRNet/SIPRNet/JWICS

Did you know...

...that Fleet Guides publications are now available to DoD customers via the Maritime Products page on NGA's NIPRNet/SIPRNet/JWICS sites? The pages are located at:

NIPRNet: https://msi.geo.nga.mil/MSISiteContent/StaticFiles/Fleet_Guides.htm
SIPRNet: http://msi.nga.smil.mil/MSISiteContent/StaticFiles/Fleet_Guides.htm
JWICS: http://msi.nga.ic.gov/MSISiteContent/StaticFiles/Fleet_Guides.htm

The publication files, in PDF format, can be downloaded directly via the following NIPRNet hyperlinks:
Atlantic
Pacific

For more information, contact NGA via e-mail to: MCDPubs@nga.mil.


New media format for Digital Nautical Publications product

Did you know...

...that, in January 2012, the Digital Nautical Publications - Quarterly Update product will be distributed in DVD format? The 1st Quarter 2012 edition will be the first issued in DVD format, which will allow for more robust product content, including video and high-resolution images, and will improve existing content and overall user experience.

Users are advised to ensure that their computer systems are capable of reading DVD-formatted disks, as the CD-ROM format will no longer be available.

For more information, contact NGA via e-mail to: MCDPubs@nga.mil.


NGA relocation to new facility

Did you know...

...that NGA is revising their "Users" and "Distribution" product notes because of its relocation to a new facility? Wording of the new notes will be as follows:

Users note:

"USERS SHOULD REFER CORRECTIONS, ADDITIONS, AND COMMENTS TO NGA'S MARITIME OPERATIONS DESK: TOLL FREE, 1-800-362-6289; COMMERCIAL, 571-557-5455; DSN, 547-5455; SEND E-MAIL TO NAVSAFETY@NGA.MIL; USE CONTACT LINKS FOR DNC AND MARITIME WEB SITES LOCATED AT https://dnc.nga.mil/; OR WRITE TO MARITIME SAFETY OFFICE, NATIONAL GEOSPATIAL-INTELLIGENCE AGENCY, MAIL STOP N65, 7500 GEOINT DRIVE, SPRINGFIELD VA 22150-7500."

Distribution note:

"Refer other requests to: Headquarters NGA, ATTN: Release Officer, Mail Stop S81-OIP, 7500 GEOINT Drive, Springfield VA 22150-7500."

For more information, contact NGA via e-mail to: MCDFLA@nga.mil.


Defense Logistics Agency (DLA)

Did you know...

...that many customers confuse functions of the Defense Logistics Agency (DLA) with those of NGA? Ordering and dissemination of NGA products is actually handled by DLA, not by NGA.

Customers can review their "R05" product allowance lists by logging in to DLA's Mapping Enterprise Business System (MEBS) and clicking on the "Subscriptions" tab. Changes to automatic distributions settings can be made from this page, but product allowance settings are controlled at the Command level. Customers may also request a copy of their allowance via e-mail to: acctmgr@dla.mil.

The Account Management and Provisioning System (AMPS) is where customers may submit requests for new accounts or update existing account information. Account information should be updated whenever personnel change.

DLA's customer Web site is located at:
http://www.dla.mil/Aviation/Offers/Products/Mapping.aspx
DLA's customer SIPRNet Web site is located at: https://www.dla.smil.mil/dscr/maps/

For more information, contact Jeff Farmer via e-mail to: jeffrey.farmer@dla.mil.


Remote Replication Site - Camp Pendleton

Did you know...

...that NGA has installed a Remote Replication Site (RRS) at Camp Pendleton, California to service customers located on the West Coast? These Sites provide users with immediate access to thousands of NGA's hardcopy chart products that would otherwise have to be obtained via normal ordering procedures.

For more information about the Camp Pendleton RRS, contact Justin Hillier via e-mail to: Justin.Hillier@usmc.mil.

For more information about any Remote Replication Site, contact NGA via e-mail to: MCDFLA@nga.mil.


DNC source information

Did you know...

...that DNC libraries contain information about their sources, similar to the Source Diagram graphic depicted on many of our paper charts? The source information can be found in the "notes.rat" file associated with the DNC's Data Quality Layer (DQY), which is automatically displayed by most IMO-approved ECDIS programs when performing a spatial query.

For more information, contact us via e-mail to: MCDDNC@nga.mil.


Tidal prediction publications

Did you know...

...that NOAA's Tide Tables and Tidal Current Tables publications can be downloaded from NGA Web sites? Hyperlinks to the downloadable files are located at:

NIPRNet: https://msi.geo.nga.mil/MSISiteContent/StaticFiles/NOAA_NOS_TideTables.htm
SIPRNet: http://msi.nga.smil.mil/MSISiteContent/StaticFiles/NOAA_NOS_TideTables.htm
JWICS: http://msi.nga.ic.gov/MSISiteContent/StaticFiles/NOAA_NOS_TideTables.htm

Additionally, the 2015 edition of UKHO's "Total Tides" application was provided to the Defense Logistics Agency (DLA) in January for customer distribution.

For more information, contact us via e-mail to: MCDPubs@nga.mil.


Bottom Contour charts replaced

Did you know...

...that NGA cancelled certain Bottom Contour charts (a.k.a. "Echo" charts) in July 2006? Each of the cancelled charts was replaced by a series of four Bathymetric Navigational Planning Charts (BNPC) covering the same geographic area.

For more information, contact us via e-mail to: MCDBNPC@nga.mil.


DNC Library to nautical chart cross-reference lists

Did you know...

...that the NGA Web sites include several ways to determine which nautical charts are covered by which DNC libraries? Our NIPRNet, SIPRNet, and JWICS sites include a column listing the chart(s) associated with the DNC Library, and all of our DNC pages include a "Chart to Library Reference" hyperlink to a text file listing the charts in each DNC Library. The same "README.TXT" file can be found on each DNC CD-ROM, in the "README" directory.

For more information, contact us via e-mail to: MCDDNC@nga.mil.


Black Sea Pilot now available as a digital publication

Did you know...

...that British Admiralty publication BA NP 24, Black Sea and Sea of Azov Pilot, produced by the United Kingdom Hydrographic Office (UKHO), is now available in PDF format? Previously, this publication was only available in printed format through the Defense Logistics Agency distribution system.

The PDF file is located on NGA's:
NIPRNet site at: https://msi.geo.nga.mil/MSISiteContent/StaticFiles/NAV_PUBS/SD/NP24/PubNP24bk.pdf
SIPRNet site at: http://msi.nga.smil.mil/MSISiteContent/StaticFiles/NAV_PUBS/SD/NP24/PubNP24bk.pdf
JWICS site at: http://msi.nga.ic.gov/MSISiteContent/StaticFiles/NAV_PUBS/SD/NP24/PubNP24bk.pdf

The digital publication is also included on the "Digital Nautical Publications - Quarterly Update" DVD-ROM product. This publication is classified as LIMITED DISTRIBUTION, and is only for use by authorized Department of Defense and United States government users.

For more information, contact us via e-mail to: MCDPUBS@nga.mil.


Marginal Notes in DNC

Did you know...

...that many of the marginal notes on hard copy charts can be viewed within the DNC libraries when querying the attributes of related DNC features. Notes are stored in the Vector Product Format (VPF) "notes.rat" table. In VMS, they appear at the bottom in the feature's attribute window.

For more information, contact us via e-mail to: MCDDNC@nga.mil.


DNC Library Data Quality (DQY) Layer

Did you know...

...that every DNC library includes a "Data Quality" (DQY) coverage? This coverage contains information such as the library's source data, the measured accuracy of the feature data, and any pertinent information about the source not captured in the feature attribution.

For more information, contact us via e-mail to: MCDDNC@nga.mil.


Website URL Changes

Did you know...

...that the Maritime Safety Internet site has recently changed the URL's of its Web pages? Existing bookmarks will redirect users to the new address of our Home page. These bookmarks must either be re-established at the new Web address, or changed by replacing "www" with "msi" in the existing bookmark address.

For more information, contact us via e-mail to the site's Webmaster.


Customer suggestion implemented

Did you know...

...that a customer's request to add the edition number of Sailing Directions publications in the selection pull-down list on our public Web site was recently implemented?

Many of the improvements that have been made to our products and services were originally requested by our customers...so keep those suggestions coming!


World Port Index

Did you know...

...that the World Port Index, Pub 150, is now available in various formats on the NIPRNet, SIPRNet, and JWICS Networks?

NIPRNet: https://msi.geo.nga.mil/NGAPortal/MSI.portal?_nfpb=true&_st=&_pageLabel=msi_portal_page_62&pubCode=0015
SIPRNet: http://msi.nga.smil.mil/NGAPortal/MSI.portal?_nfpb=true&_st=&_pageLabel=msi_portal_page_62&pubCode=0015
JWICS: http://msi.nga.ic.gov/NGAPortal/MSI.portal?_nfpb=true&_st=&_pageLabel=msi_portal_page_62&pubCode=0015

The publication is available as a PDF document, an Arc Shape file, and a Microsoft Access database, and can also be downloaded from the World Port Index page on the Maritime Safety public site.

For more information, please contact us via e-mail to: MCDPubs@nga.mil.


Printing chartlet files correctly

Did you know...

...that you must follow special instructions in order to print downloaded chartlet JPEG files at the correct scale to match the chart? Select the Printing Instructions hyperlink located on the Maritime Safety Home page to view the Instructions.

For more information, please contact us via e-mail to: MCDChartlets@nga.mil.


Frequently Asked Questions (FAQ)

Did you know...

...that NGA's Maritime Services Domain has Frequently Asked Questions (FAQ) pages on several of its Web sites?

Maritime Safety Information public site FAQ page.
Maritime Safety Information NIPRNet site FAQ page.
Digital Nautical Chart (DNC) public site FAQ page.
DNC restricted site FAQ page.

Consulting these FAQ pages can often answer questions about the Maritime Domain's products, services, and Web sites. It is recommended that users consult the FAQ pages before submitting any questions to the Maritime contact points.


Adding features to NGA charts

Did you know...

...that customers can request that a feature be added to an NGA chart? To make sure the feature is accurately depicted, supporting information is essential. Identification of the applicable chart, an accurate position, a detailed description, or even photographs of the feature, if possible, are examples of the information that should be included in any submission.

For features affecting an NGA-issued chart product (paper or DNC), unclassified information should be e-mailed to NAVSAFETY@nga.mil.

Similarly, information that is classified, or that references a classified product, should be e-mailed to (SIPRNet) NAVSAFETY@nga.smil.mil. Please make every effort to send only unclassified information, if possible.

For a NOAA-issued chart product (paper or ENC), information can be entered into the on-line form available at http://ocsdata.ncd.noaa.gov/idrs/discrepancy.aspx.


Multiple installations of TotalTide

Did you know...

...that TotalTide, provided through agreement with the UK Hydrographic Office, can be loaded onto more than one workstation? Commands/ships that have received a copy can use it multiple times or are allowed to share the disk with other commands/ships.

For more information, please contact us via e-mail to: MCDPubs@nga.mil.


Ordering the Common Geospatial Navigation Toolkit (COGENT)

Did you know...

...that authorized users can order COGENT from the US Navy's Space and Naval Warfare Systems Command (SPAWAR) for free? It can be used to view DNC data downloaded from NGA websites or on CD-ROM disk from DLA. It is useful for situational awareness and training, it saves the cost involved in purchasing and updating commercial products, and it accepts the VDU patch updates distributed monthly.

To request a copy of the application, contact SPAWAR via e-mail to: cogent@spawar.navy.mil.

For additional information, please contact NGA at: MCDFLA@nga.mil or SPAWAR at the e-mail address above.


Improve NGA products by submitting source data

Did you know...

...that the NGA Maritime Services Domain seeks source data from you, the customer? An example is more photographs of ports or specific aids to navigation that we can include in our Sailing Directions publications. If you have taken photographs of objects or areas described in the Sailing Directions, please send copies to NGA.

If you have obtained any authoritative information from a local source, please share it with us. The more background information you can provide to us, the better we can evaluate the quality, accuracy, and usefulness of the information. Guidance for submitting source material can be found in every Notice to Mariner issue, in the Marine Information Report and Suggestion Sheet section, or by completing our on-line form.

Occasionally, those of you who already send us materials have provided the sources in a classified manner. The majority of materials that we receive and the products we put them to use in are unclassified. If the unclassified materials are passed to us as classified, we either can not use them or have to go through extraordinary measures to have them cleared. We will accept classified materials, of course, but would like them to be sent separately from any unclassified materials. USFF has issued an e-mail explaining the proper procedures for you to follow. We greatly appreciate your efforts. We would like to make sure they are not wasted because of errors in classification.

For more information, please contact via e-mail to: MCDFLA@nga.mil.


Notice to Mariners - HYDROGRAM

Did you know...

...that you should regularly read the HYDROGRAM in the Notice to Mariners (NTM)? It's located on page iii of every NTM issue. Some information will appear only in the HYDROGRAM. For example, the HYDROGRAM in NTM 11/10 included changes by NOAA relative to the LORAN-C system.

For more information, please contact us via e-mail to: MCDNtM@nga.mil.


Tactical Ocean Data (TOD)

Did you know...

...that Tactical Ocean Data (TOD) Levels 0 through 3 are complimentary to the Digital Nautical Chart (DNC) and are to be used with it on the ECDIS-N? TOD4 (HITS data) can be used either with the DNC or as a stand-alone data set.

For more information, go to:
NIPRNet: https://www.geointel.nga.mil/products/dnc/tod/index0.htm
SIPRNet: http://www.geoint.nga.smil.mil/products/dnc1/tod/index.htm
JWICS: http://www.geoint.nga.ic.gov/products/dnc1/tod/index.htm

If you have further questions, please contact us via e-mail to: MCDTOD@nga.mil.


Requests for United Kingdom Hydrographic Office (UKHO) products

Did you know...

...that there is a procedure in place for requesting charts and products supplied by the UK Hydrographic Office? COMUSFLTFORCOMINST 3150.1 and COMPACFLT OPORD 201 (Annex M) provide Fleet policy for requesting foreign chart support. Military Sealift Command has guidance in COMSCINST 3145.1D of June 10, 2009.

Recently, there have been incidents where vessels have contacted the UKHO directly to resolve an issue that should have gone through USFF/COMPACFLT or MSC. Any time there is a requirement for, or a problem with a British Admiralty product, please follow the established guidance. NGA has a Memorandum of Understanding (MOU) with the UKHO. Routing your requirements through the USFF, COMPACFLT, or MSC staff enables NGA to work within the terms of this MOU and, saves your valuable OPTAR.

For LANT based units, contact Mr. Dan Soper:
E-mail: daniel.j.soper@navy.mil or (SIPRNet) daniel.j.soper@navy.smil.mil
Telephone: DSN 836-6837 or COM (757)836-6837

For PAC based units, contact Mr. Dan Morris:
E-mail: daniel.g.morris@navy.mil or (SIPRNet) daniel.morris@navy.smil.mil
Telephone: DSN 315-474-6901 or COM (808) 474-6901.

For MSC units, contact Joe Harriss via e-mail to: joe.harriss@navy.mil


PKI Registration

Did you know...

...that you must register your PKI certificate to access certain NGA Web sites? You can do so at https://www.geointel.nga.mil/. On the left side of the page, go to "More...", select "Registration" and follow the instructions. Helpful hint: know your Security Officer's name, phone number, and email address when you first access the form.

If you have any questions about the process, Points of Contact are listed at the bottom of the registration page.


Digital Nautical Chart (DNC) Libraries

Did you know...

...that all 29 Digital Nautical Chart (DNC) CD-ROMs are "certified for navigation" as of Oct 2004? Of course, this also requires that you update the libraries. If they are not updated within 60 days of the new edition date or the last update, the display takes on a different look, with a special symbol pattern overlaying the entire display screen. At that point it is no longer certified and may not be used for navigation.

For more information about DNC, contact us via e-mail to: MCDDNC@nga.mil, or visit the DNC sites at:

DNC New Edition Libraries and VDU Patches:
NIPRNet: https://dnc.geo.nga.mil
SIPRNet: http://dnc.nga.smil.mil
JWICS: https://dnc.nga.ic.gov

DNC Updated Libraries (these libraries require no VDU patch application and are recommended for broadband users only):
NIPRNet: https://www.geointel.nga.mil/products/dnc/index.php
SIPRNet: http://www.geoint.nga.smil.mil/products/dnc1/index.php
JWICS: http://www.geoint.nga.ic.gov/products/dnc1/index.php


Digital Nautical Publications

Did you know...

...that NGA is transitioning to all digital publications? Most of our publications have already made the transition, and are available on our Digital Nautical Publications – Quarterly Update product (DVD-ROM). The files on the disks have been updated to its release date. Many can have additional updates via the Publication Data Update (PDU) files that are available for download from our Web sites. These digital versions fulfill all legal carriage requirements for the publications.

For more information, contact us via e-mail to: MCDPubs@nga.mil.


Enterprise Product-on-Demand (EPOD) charts

Did you know...

...that NGA produces Enterprise Product-On-Demand (EPOD) charts? They allow the user to download a relatively up-to-date chart in PDF file format. Based on Digital Nautical Chart (DNC) data, an EPOD chart is usually available 6 to 8 weeks before the paper chart is distributed by DLA. The PDF file can be printed if the proper government-owned, large-format printer is available, such as those found at the NGA Remote Replication Site facilities. Such a chart is certified safe for navigation when printed at the correct scale, and are useful for situational awareness and planning when printed at smaller scales. EPODS charts can be downloaded from the following sites:
NIPRNet: https://www.geointel.nga.mil/products/dnc/epods/index.htm
SIPRNet: http://www.geoint.nga.smil.mil/products/dnc1/epods/index.htm
JWICS: http://www.geoint.nga.ic.gov/products/dnc1/epods/index.htm

For more information, contact us via e-mail to: MCDEPOD@nga.mil.


"Burial at Sea" charts

Did you know...

...that NGA provides "Burial At Sea" charts for you to include in a package for the survivors? They are prepared at our Remote Replication Systems (RRS) in several locations.

Requests should be faxed or e-mailed to
E-mail: ngarrsnorfolk@nga.mil
Fax: 757-445-2461
Please do not submit hand-written requests.
If e-mailing, include information within the e-mail instead of using file attachments.

Provide the following information:
Rate/Rank/Name/Status
Ship/Squadron/Command
Position of Burial
Time/Date of Burial

Please allow as much lead time as possible, because the RRS provides this service on a low-priority basis. Depending on their workload at the time of your request, it may take them three or four weeks (or longer!) to fulfill the request. We would never expect delivery in less than three weeks, and suggest that you allow at least a month. "More is better", and increases the likelihood of you receiving them in a timely manner.

The RRS staff advises not to promise the families that they will receive these in any particular timeframe. The uncertainty of the workload makes it unpredictable, so we don't want to disappoint them with unrealistic predictions.


Adoption of "Bilateral" charts

Did you know...

...that NGA is cancelling some of its paper charts and replacing them with charts produced by local authorities? These "Bilateral" charts are assigned an NGA chart number that can be ordered through normal channels from the Defense Logistics Agency (DLA), and are updated via Notice to Mariners (NTM) corrections.

A list of Bilateral charts currently on issue is published in Section III of each Notice to Mariners, in the Marine Information section. For more information, see NTM issue 1/2012, page I-1.3, or contact us via e-mail to: MCDCharts@nga.mil.


Distribution of NGA Products

Did you know...

...that NGA does not distribute (with some exceptions) its products? NGA closed its Office of Distribution Services in the 1980's when the Defense Logistics Agency (DLA) assumed its distribution responsibilities. So, if you need an NGA product in the form of a CD-ROM disk or printed hard copy, use the DLA Map Catalog to order it.

Exceptions include, but are not limited to, digital products available for download from our Web sites, and the HarborView/Global Port Infrastructure Data 3-D models that can be ordered from our PKI-required Web site at https://aero.geointel.nga.mil/products/harborview/o_index.cfm.


Contact Information

Did you know...

...that NGA's Maritime Safety Office maintains Web sites at the following URLs?:
NIPRNet - https://msi.geo.nga.mil
SIPRNet - http://msi.nga.smil.mil
JWICS - http://msi.nga.ic.gov

The Maritime Safety Office also maintains a Customer Database. Each of our products and services has a group email address. The members of the groups are Subject Matter Experts (SME) for that subject. Writing to the group email address will solicit a response from experts in that field.

Group e-mail addresses:
Advanced Geospatial Intelligence (AGI) - MCDAGI@nga.mil
Bathymetric Data (HYSAS program) - MCDHYSAS@nga.mil
Bathymetric Navigation Planning Charts (BNPC) - MCDBNPC@nga.mil
Digital Nautical Charts (DNC) - MCDDNC@nga.mil
Electronic Chart Display and Information Systems (ECDIS) - MCDECDIS@nga.mil
Enterprise Product-on-Demand (EPODS) - MCDEPOD@nga.mil
Graphic Chart Corrections (Chartlets) - MCDChartlets@nga.mil
OPAREA data - MCDOPAREA@nga.mil
Paper Nautical Charts - MCDCharts@nga.mil
Publications - MCDPubs@nga.mil
Tactical Ocean Data (TOD) - MCDTOD@nga.mil

spacer