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Alumni List and Distribution

106 alumni in 51 countries by the end of 2024, distributed worldwide (Larger map)

S-100 FAQ's

S-57 Frequently Asked Questions

S-57 Encoding Bulletins

S-57 Edition 3.1 Encoding Bulletins

EAtHC Letters

Circular Letters Last update: 21 October 2024

Basic Documents

Basic Board Documents

SWAtHC15 (2021)

15th Meeting 31 August - 1 September 2021, VTC

SAIHC Letters

MACHC Letters

(English & Spanish only)