Electronic Navigational Chart (ENC) is a vector based file containing marine features and information necessary for safe navigation. ENC could be used in Electronic Chart System (ECS) or Electronic Chart Display and Information System (ECDIS) as a real-time navigation system.

SPECIFICATIONS

The Hong Kong ENC is produced according to the International Hydrographic Organization (IHO) Transfer Standard for Digital Hydrographic Data Specification (S-57) edition 3.1.