Over 18,000 official Electronic Navigational Charts

The ADMIRALTY Vector Chart Service (AVCS) is the world’s leading official digital maritime chart service, with around 18,000 official Electronic Navigational Charts (ENCs) to help bridge crews navigate safely and efficiently whilst meeting flag and port State requirement​s.

Key features of AVCS:

  • 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 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
  • Online version now available for shore-based activities
Person pointing at a screen with UKHO data discplayed

Available around the world


We distribute our products through a global network of experienced and trusted ADMIRALTY Distributors. If you are interested in finding out more about AVCS, please contact your preferred distributor or visit the find a distributor page to locate your closest distributor.

Find an ADMIRALTY Distributor



ECDIS and ADMIRALTY Information Overlay compati​​bility

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 Distributor.

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

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Manufacturer Model AIO Compatible ECDIS Version* ARCS ADMIRALTY TotalTide
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How to update AVCS

Find information to help you update AVCS

AVCS support

Find information to support you in your use of the ADMIRALTY Vector Chart Service

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.

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 AVCS 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.

Choosing, ordering and m​​anaging AVCS

AVCS is sold through an international network of experienced and trusted distributors. Please contact your ADMIRALTY Distributor to discuss the right package of charts for you.

If you don't have a preferred distributor, then you can search a list of worldwide ADMIRALTY Distributors on our find an ADMIRALTY Distributor page.

Find an ADMIRALTY Distributor

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

Person using AVCS Online on a laptop

AVCS Online

ADMIRALTY Vector Chart Service (AVCS) Online is a shore-based version of the world’s leading maritime chart service that is used on board most ships trading internationally. 


Find out more information about AVCS Online