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AGL& RsWG

African Great Lakes & Rivers Sub-Working Group

ENC Portrayal S-57

Introduction IHO Publication S-52 was developed in conjunction with the IMO Performance Standards for Electronic Chart Display and Information System (ECDIS). It provides specifications and guidance regarding the issuing and updating of Electronic Navigational Charts (ENC), and their display in ECDIS in terms of symbols and colours.

S-57 FAQ's

S-57 Frequently Asked Questions

S-57 ENC Production

Introduction The S-57 "Transfer Standard for Digital Hydrographic Data” is the IHO standard to be used for the exchange of digital hydrographic data between national hydrographic offices and for its distribution to manufacturers, mariners and other data users.

USCHC Meetings

List of US / Canada Hydrographic Commission  

Cartas Circulares 2025

Circular Letters 2025

Sub-Groups

ECS PT meetings

List of ECS Project Team Meetings