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S-57 FAQ's

S-57 Frequently Asked Questions

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.

Draft Publications

SWPHC22 (2025)

22nd Meeting 3 - 5 March 2025, Koror, Palau & IHO Capacity Building Workshop on Hydrographic Contracts and Maritime Law, 6-7 March 2025   Workshop provisional Agenda - Photo 

EAtHC Region G ICCWG

NSHC Letters

SWPHC Letters

BSHC Letters

Basic Board Documents