​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The ADMIRALTY Vector Chart Service (AVCS) is the world’s leading official digital maritime chart service, with over 15,750 official Electronic Navigational Charts (ENCs) to help bridge crews navigate safely and efficiently whilst meeting flag and port State requirement​s.

STEP 1: Sign up

User-Requirements for AVCS

STEP 2: Log in

Log in to your fleet and buy your AVCS Product Now

Step 3: Pay now

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Key features of AVCS include:

    • ​100% official global maritime ENC coverage with more routes and ports than any other competing service

    • Unique ADMIRALTY Information Overlay (AIO) for additional passage planning information​​​​​​

    • Weekly updates available via email, online or on CD and DVD to ensure ongoing safety and compliance

    • Delivered in industry standard S-63 / S-57 formats, guaranteeing compatibility with all ECDIS sold today – even in a mixed fleet


More routes, more ports

The ADMIRALTY Vector Chart Service (AVCS) provides the widest official ENC coverage available, enabling ships to navigate on ECDIS for the entirety of most major routes on a single chart service. This coverage includes 4,000 of the biggest ports worldwide, of which we offer unique coverage for over 130.


Ongoing safety and compliance

All AVCS customers are supplied with weekly electronic updates via internet download, email or disc – ensuring that bridge crews and shore-based teams have access to complete and up-to-date information. These electronic updates reduce time and effort spent making manual updates to paper charts, minimise the risk of human error and help to ensure compliance with Flag and Port State requirements.


Carriage-compliant, 100% official

All ships using AVCS on board receive a UKHO certificate. This certificate can be used for local inspections and confirms that all Electronic Navigational Charts (ENCs) in AVCS satisfy the chart carriage requirements of SOLAS Chapter V.

AVCS meets the latest mandated data protection standard from the International Hydrographic Organization (IHO), which helps to reduce the risk of both data piracy and the distribution of unofficial, dangerous data to mariners.


ADMIRALTY Information Overlay, unique extra navigational data

The ADMIRALTY Information Overlay (AIO) aids navigators at the crucial passage planning stage.

It contains ​ADMIRALTY paper chart Temporary and Preliminary Notices to Mariners (T&P NMs) where the information is not encoded into the underlying ENC. It also contains ENC Preliminary Notices to Mariners (EP NMs), which highlight  navigationally significant differences between ENCs and ADMIRALTY paper charts.

AIO can be displayed as a single layer on top of ENCs on the majority of ECDIS currently being sold, and also on back-of-bridge software, including  ADMIRALTY Planning Station. All AVCS customers receive the unique AIO at no extra cost.


Compatible with all type-approved ECDIS makes

AVCS is delivered in industry standard S-63 / S-57 formats, guaranteeing compatibility with all type-approved ECDIS sold today. Please see the Specifications tab for a list of systems that are also compatible with the ADMIRALTY Information Overlay.


Purchase options that suit you

For maximum convenience, AVCS ENCs can be ordered in predefined transit, regional or port folios (groupings of ENCs). New ENCs are automatically added as soon as they become available, ensuring your ships always have the latest data. You can also combine AVCS folios with your choice of individual ENC charts for unrivalled coverage and flexibility.​

Alternatively, all ENCs can be bought on an individual, chart-by-chart basis for precise coverage and voyage flexibility. Simply buy the licences to unlock the charts needed for a voyage, when and for as long as they are needed. Most ENC-issuing countries allow durations of 3, 6, 9 or 12 months.​


ECDIS and ADMIRALTY Information Overlay compatibility

All ECDIS equipment must undergo a type-approval certification process to ensure it meets IMO Performance Standards for ECDIS. AVCS is compatible with all ECDIS and ECS (Electronic Chart Systems) that meet these requirements. You can find out more about type-approval and get advice on ECDIS implementation by talking to an ADMIRALTY Chart Agent.

The following table lists display systems that currently support both AVCS and the ADMIRALTY Information Overlay (AIO).

​Manufacturer​ Model​ AIO Compatible ECDIS Version* ​ARCS ADMIRALTY TotalTide
​ChartWorld ​eGlobe ECDIS 40​00.10.207 ECDIS Kernel v 5.12
​Consilium ​ECDIS
​Danelec​ ​DM800 ECDIS G2
​Furuno FEA-2107
FMD 3100
FMD 3200
FMD 3300
Jargoon ​SEALL ECDIS ​1.2
​JRC ​JAN-701B
​ECDIS Application 2.02
Maintenance no. v56
Chart Portfolio 2.02

​ ​
Kongsberg ​K-Bridge ECDIS 7.1.x 
K-Nav ECDIS 7.1.x
MARIS ​ECDIS900 ​ ​​
OSI Maritime Systems Ltd. ​ECPINS
ECPINS Warship
​ECPINS Submarine​

PC Maritime ​Navmaster ​ ​​
​TickV1.0.15.32, V2.0.x.x
TickV1.0.15.32, V2.0.x.x
Northrop Grumman Sperry Marine ​VisionMaster FT ​5.6 ​​
Tokyo Keiki ​EC-8100
Totem Plus ​Totem ECDIS ​2.00
​Transas ​Navi-Sailor 3000 ECDIS MFD
Navi-Sailor 4000 ECDIS MFD
Standard, Standard+, Premium, Premium+

​Telko ​TECDIS ​4.7.x.23
Wuxi Nuorui Technologies​ ​NRECDIS ​​​v4.0.2.6


* AIO compatible ECDIS version numbers indicate the minimum ECDIS software version required to view the AIO.

AVCS, AIO, TotalTide, ADRS and ADLL can be displayed in ADMIRALTY e-Navigator Planning Station.


Below you’ll find information to help you update AVCS. This includes links to the AVCS Online Updating Service software, as well as cancelled and replaced folios.

AVCS Online Updating Service

The AVCS Online Updating Service provides immediate access to the latest digital chart updates for subscribers of the AVCS service. The service is complimentary to the standard DVD and CD-based updating services for AVCS and offers quick access to the most up-to-date information.

Download the AVCS Online Updating Service software 


Cancelled and Replaced folios

Periodically, changes to the ENC coverage available worldwide make it necessary to cancel and replace both ENC Units and AVCS Folios. The below Excel files contain a full list of cancelled Units and Folios, along with the Units and Folios that replaced them:​

AVCS Cancelled and Replaced Folios 

Replacements for Cancelled Cells 

Withdrawn Cells


AVCS Support Films

Guides to help you download updates for AVCS, as well as complete installation, are listed on our Support Tab.

Find out more about support for AVCS >


ADMIRALTY e-Navigator Planning Station

ADMIRALTY e-Navigator Planning Sta​​​​​​​tion is a voyage planning and chart management tool that helps bridge crews to view, order and manage ADMIRALTY Maritime Data Solutions. ​​

Find out more about e-Navigator Planning Station >


Downloading updates via the FTP site

We supply all AVCS customers with​  weekly electronic updates via Internet download, email or DVD. To obtain AVCS updates via the Internet, you can use our public FTP website with the following login credentials (the username and password details are case sensitive).

URL: FTP://ukho.gov.uk​

Username: ukhopublic

Password: Public12345​


Below you will find information to support you in your use of the ADMIRALTY Vector Chart Service, including detailed user guides and support films. If you cannot find the answer to your questions, kindly contact us for more details.


AVCS User Guides

Download the AVCS User Guide  

Download the ADMIRALTY Information Overlay (AIO) Version 2 User Guide 

Download AIO Version 2 Frequently Asked Questions 

Download AIO Version 2 Letter for Compliance Inspectors  


READM​E file

Information on the use of ENCs in ADMIRALTY services. This information may be navigationally significant and should be reviewed for changes when you update your ECDIS.

Download the README.txt 


Important information for A​VCS users

Includes information on general cautions about the use of ENCs within ECDIS.

Download Important Information for AVCS Users 


T&P NMs in ENCs

Not all ENC producers include Temporary and Preliminary (T&P) Notices to Mariners (NMs) in their ENCs. The following table lists the confirmed status of T&P NMs in the ENCs that are available in AVCS and the ADMIRALTY ECDIS Service.

Download the current status of T&P NMs in ENCs 


ENC Update Status


AVCS Installation Guides for ​​ECDIS

The following guides are designed to help you install AVCS on specific ECDIS types. Installation films are also available on the AdmiraltyTV YouTube Channel for a select range of ECDIS, or simply scroll down below this page to see How to Install AVCS.​

Manufacturer Installation Guide Installation Guide Films S-63 1.1 Migration Guides
ADMIRALTY e-Navigator  

Installation Films 


1.20 – 1.50 Series  ​
DMG800 ​​ 


 Danalec guide 


eGlobe G2​   

Installation Films 


​​FEA 2​107/2807​ 

FMD 3000 series​​ ​​

Installation Films 

Installation Films

Furuno guide ​

Installing AVCS media 

The Public Key  


JAN-701B/901B Version 02.02​ 

​​JAN-7201/9201 Version 01.20.026 ​

Installation Films 

JRC guide 

Installing AVCS media 

The Public Key 

Kelvin Hughes  

Installation Films 

Kelvin Hughes guide 


Installation Films 

Installing AVCS media 

The Public Key 


​​​ECDIS 900​  

Installation Films 

Maris guide 

Installing AVCS media 

The Public Key  

Northrop Grumman Sperry Marine

Marine VisionMaster Version 

Installation Films 

Northrop Grumman Sperry Marine guide 

Installing AVCS media 

The Public Key  

OSI Maritime Systems  

Installation Films 

OSI guide 

PC Maritime


Installation Films 

PC Maritime guide 

Raytheon Anschutz  

Installation Films 

Raytheon Anschutz guide 

Installing AVCS media 

The Public Key  

SAM Electronics

ChartPilot 1100 Version 6.14 ​​

ECDISPILOT Version​   

ECDISPILOT Version​  ​


Installation Films ​​ 

Installation Films   ​

SAM guide 

The Public Key 


Telko ECDIS  

Installation Films 

Tokyo Keiki

Tokyo Keiki EC 8×00​ Version 1.3.0  

Installation Films 

Tokyo Keiki guide 

Installing AVCS media 

The Public Key  

Totem Plus

TOTEM 00035 Version  

Installation Films 

Totem Plus guide 


Navi-Sailor 4000 ​Version 2.00.010​  

Installation Films 

Installing AVCS media 

The Public Key  


Digital Media Ordering Schedule

Below you’ll find issue dates for each base disc, as well as countries covered.

​Area CDROM ​Issue date ​Countries covered
​Base 1 Week 14, 04 April 2019 ​Estonia EE, Finland FI, France FR, Latvia LV, Lithuania LT, Sweden SE.
​Base 2 Week 14, 04 April 2019 ​Norway NO. Poland PL.
​Base 3  Week 14, 04 April 2019 Solomon Islands SB, ​Turkey TR, United Kingdom GB.
​Base 4 Week 14, 04 April 2019 ​Croatia HR, Denmark DK, Georgia GE,  Greece GR, Italy IT, Malta MT, Montenegro ME, Portugal PT, Romania RO, Russia RU, Slovenia SI, Spain ES, Ukraine UA.
​Base 5 Week 14, 04 April 2019 ​USA US.
​Base 6 Week 14, 04 April 2019 ​Canada CA, USA US.
​Base 7 Week 14, 04 April 2019 Australia AU, Bahrain BH, Burma (Myanmar) MM, East Asia Hydrographic Commission EA, Egypt EG, India IN, Indonesia ID, ​Iran IR, Israel I1, Malacca & Singapore Straits MS, Malaysia MY, New Zealand NZ, Pakistan PK, Philippines PH, Singapore SG, South Africa ZA, Sri Lanka LK, Thailand TH, Tunisia TN, Vietnam VN.
​Base 8 Week 14, 04 April 2019 ​Argentina AR, Bangladesh BD, Belgium BE, Brazil BR, Chile CL, Colombia CO, Cuba CU, Ecuador EC, Germany DE, Iceland IS, Mexico MX, Netherlands NL, Panama PA, Peru PE, Suriname SR, Uruguay UY, Venezuela VE.
​Base 9 Week 14, 04 April 2019 ​China C1, Hong Kong C2, Macau C3, Japan JP, Korea (Republic of) KR.

Reissue date: ​Week 23, 06 June 2019


How to Buy

You can purchase charts in AVCS as individual ENCs, or in folios covering a geographic region. These ENCs and folios, which are outlined below, can be purchased on a subscription basis for periods of 3, 6, 9, or 12 months where countries allow. Additional coverage can also be purchased at any time, and each chart has its own subscription period.


Transit Folios

These folios provide ENC coverage at a scale appropriate for vessels not engaged in local trade, saving you the expense of purchasing detailed coverage where it’s not required. Transit folios also provide increased coverage of major choke points, such as the Suez Canal and Malacca Strait. 

View a Transit Folio example >


Regional Folios

These cover a much smaller geographical area than Transit Folios and include all Coastal and some Approach ENCs, where coastal coverage is not available. Regional Folios are designed for local and coastal trade, where more detailed coverage of complex coastal waters is required. They do not include Port Approaches or Entry.

View a Regional Folio example >


Port Folios

These typically comprise of Approach, Harbour and Berthing ENCs, grouped together into a single sales unit.

View a Port Folio example >


Individual ENCs

Instead of purchasing your ENCs as folios, it is also possible to buy ENCs individually, allowing you complete control over your chart holdings. Most ENCs in the AVCS service can be selected on a chart-by-chart basis and typically contain ENC data approximately equivalent to that of a paper chart.



Combine AVCS Folios of your choice with individual ENC charts for unrivalled coverage and voyage flexibility.

The ADMIRALTY Digital Catalogue (ADC) can also provide you with a comprehensive and up to date reference of current ADMIRALTY Maritime Data Solutions, with functionality that allows you to search for products by type, scale or a defined route.

Find out more about the ADC > ​

How to Install AVCS