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Basic Documents (Separate files)
Basic Assembly Documents Convention on the IHO General Regulations of the IHO Financial Regulations of the IHO Rules of Procedure - IHO Assembly Rules of Procedure - IHO Council Rules of Procedure - IHO Finance Committee
Circular Letters
The IHO Secretariat communicates important information to Member States (MS) via Circular Letter (CL). Some CLs invite Member States to provide feedback to the Secretariat (e.g. approval of new editions of IHO Standards). In cases where MSs are invited to provide feedback via online form, the link to the form will be included in the CL. Further information is provided in CL 20/2019). All previous years CLs are available from the IHO searchable HERE. ________________ Spanish Circular Letters are available HERE
MEETINGS AND CONFERENCES AFTER 2024
List of ABLOS Meetings and Conferences Note: To access the meeting page, you'll need an IHO Portal account. If you don't have one yet, don't worry! Creating an account is easy. Simply follow the instruction provided at the link here to set up your account and gain access to the meeting page. Click the IHO Portal to get started ABLOS Meetings and Conferences Year Title Venue Date Remarks 2025 32nd ABLOS Business Meeting Doha, Qatar 6 and 9 October 2025 IHO Portal 2025 12th IHO-IAG Advisory Board on the Law of the Sea (ABLOS) Conference PROGRAMME (For more information and to register, please consult the ABLOS Website) Doha, Qatar 7 and 8 October 2025 ABLOS Website
E-Navigation and GMDSS
Introduction E-navigation is defined as “the harmonized collection, integration, exchange, presentation and analysis of marine information on board and ashore by electronic means to enhance berth to berth navigation and related services for safety and security at sea and protection of the marine environment.” It is intended to meet present and future user needs through harmonization of marine navigation systems and supporting shore services.
NHC Meetings (old)
Lists of former NHC meeting webpages.
S-124 Project Team (S-124PT)
Chair: Mr Eivind Mong (Canada) Vice-Chair: Secretary:
IHO-Republic of Korea Programme of Technical Cooperation
In line with the MOU between the Government of the Republic of Korea and the IHO for Support of the IHO Programmes signed on 16 June 2011, the Government of the Republic of Korea makes a contribution to the IHO for the capacity building activites but also technical standard as international and regional bases. The Republic of Korea wishes to make a contribution available to the IHO for the purpose of helping developing countries improve their ability to comply with international standards relating to hydrographic surveying, oceanographic observation, nautical charts and electronic navigation charts production. Korea Hydrographic and Oceanographic Agency (KHOA) http://www.khoa.go.kr
Communication Material
Communication Material
SAIHC Meetings (old)
Lists of former SAIHC meeting webpages.

