IHO Publications
The IHO Publications are arranged under the following groups:
B - Bathymetric Publications (Mainly related to GEBCO).
C - Capacity Building Publications
M - Miscellaneous Publications (including Basic Documents)
P - Periodic Publications
S - Standards and Specifications
Other Publications
Draft Publications
Almost all IHO publications can be downloaded free of charge. Some publications, however, are subject to restricted access and are indicated by this symbol 
Recent Publications
The following documents were published recently:
- S-11 Part B, Region M, Ed. 4.0.5, April 2024, English
- S-11 Part B, Region L, Ed. 4.0.2, April 2024, English
- S-11 Part B, Region J, Edition 4.0.8, April 2024, English
- S-11 Part B, Region H, Ed. 4.0.8, April 2024, English
- S-11 Part B, Region E, Ed. 4.0.9, April 2024, English
- S-11 Part B, Region D, Ed. 4.0.6, March 2024, English
- S-65 Annex B, Ed. 1.2.0, April 2024, English
- S-101, Ed. 1.2.0, March 2024, English
- B-13 Guidance to Satellite-Derived Bathymetry, Ed 1.0.0, March 2024, English
- S-97, version 1.1.0, Chinese
- S-99, version 2.0.0, Chinese
- S-128, version 1.0.0, Chinese
- M-1, Ed. 2.1.3, January 2024, English, French
- INT 3 Use of Symbols and Abbreviations (Edition 1, 2023)
- S-129, Ed. 1.1.0, November 2023, English
- S-100, Ed. 5.1.0, October 2023, English
- C-17, Ed 3.0.0, October 2023, English
- P-6, May 2023, English
- S-65 Annex B, Ed. 1.1.0, August 2023, English
- M-3, Spanish, July 2023
- S-11 Part B, Region G, Ed. 4.0.9, June 2023, English
- M-3, English, French, July 2023
- S-68, Ed. 1.0.0, July 2023, English
- S-130, Ed. 1.0.0, April 2023, English
- S-131, Ed. 1.0.0, April 2023, English
- S-124, Ed. 1.0.0, May 2023, English
- M-7, English, French, July 2023
- S-164, Ed. 1.0.0, March 2023, English
- S-111, Ed. 1.2.0, April 2023, English
- S-104, Ed. 1.1.0, March 2023, English
- P-7, Ed1.1.0, April 2023, English, French
- S-102, Ed. 2.2.0, April 2023, English
- S-101, Ed. 1.1.0, April 2023, English
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