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IHO Publications
S 44 IHO Standards for Hydrographic Surveys (Edition 6.1.0, October 2022)
B 12 Guidance on Crowdsourced Bathymetry
C 17 Spatial Data Infrastructures: “The Marine Dimension” - Guidance for Hydrographic Offices, Edition 2.0.0, January 2017
M 2 The Need for National Hydrographic Services (Version 3.0.7, June 2018)
S 4 Regulations for International (INT) Charts and Chart Specifications of the IHO (English: Edition 4.9.0, March 2021 - Publication date: April 2021)
S 49 Standardization of Mariners' Routeing Guides (Edition 2.1.0, September 2020)
S 57 IHO Transfer Standard for Digital Hydrographic Data (Edition 3.1.0, November 2000) - Main Document
S-57 Supplement No 3 to Edition 3.1 (June 2014 - incorporates the former Supplement No 2)
S 64 IHO Test Data Sets for ECDIS (Edition 3.0(.3), December 2020)
S 67 Mariners’ Guide to Accuracy of Depth Information in Electronic Navigational Charts (ENC) (Edition 1.0.0, September 2020)
Appendix B.1, Annex A - Use of the Object Catalogue for ENC - UOC (Ed. 4.3.0 October 2022)
Cumulative Maintenance Document No 8 (March 2002) - List of Clarifications, Corrections and Extensions for S-57 publications
Appendix A, Chapter 1 - Object Catalogue
Appendix A, Chapter 2 - Attribute Catalogue
Appendix A, Annex B - Attributes/Object Classes Cross Reference
Appendix B.1 - ENC Product Specification
Appendix B.1, Annex B - Examples of CRC Coding
Appendix B.2 - IHO Object Catalogue Data Dictionary Product Specification