AVCS Overview
AVCS
AVCS OVERVIEW
The Admiralty Vector Chart Service (AVCS) brings together Electronic Navigational Charts
(ENCs) from national Hydrographic offices around the world and new ENC coverage
produced by UKHO in co-operation with Foreign Governments to provide comprehensive,
official, worldwide coverage.
AVCS contains only ENC data that meets SOLAS Carriage Requirements for use within
Electronic Chart Display and Information Systems (ECDIS).
Electronic Navigational Charts (ENCs) are digital vector charts produced to the International
Hydrographic Organization’s (IHO’s) standards (S57 Version 3.1 and ENC Product
Specification). They are referred to World Geodetic System 1984 Datum (WGS84) and are
regularly updated with official update information distributed digitally.
Hydrographic offices do not take any responsibility for the accuracy or reliability of privately
produced, unofficial charts.
AVCS are present in ECDIS GB tab.
Charts have the following statuses:
• installed, up-to-date - displayed as green
• installed, not protected - displayed as green
• installed, out-of-date - displayed as red
• not installed - displayed as red
Permits statuses are the following:
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