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Product Information

Product ID	S-125
Title	Marine Aids to Navigation (AtoN)
Scope	Global.
Related links	http://www.iho.int
Abstract	This Product Specification describes navigational features including lights and other navigation aids, both physical and virtual; temporary and seasonal marks; and local AIS application-specific messages. Navigational services information may be considered supplementary additional information that complements the S-101 ENC.
Owner	IHO
Domain	IHO Hydro
Responsible body	IHO (NIPWG)
Contact	Stefan Engström	stefan.engstrom@traficom.fi
Remarks	S-125 is a joint IHO/IALA Publication. S-125 Edition 1.0.0 is released for implementation and testing purposes only.

Version Information

Version	Published Uploader:Jeff Wootton/ S-125_Product_Specification_Ed_1.0.0.pdf
	Uploader:Jeff Wootton/ S-125_Annex_A_DCEG_Ed_1.0.0.pdf
	Uploader:Jeff Wootton/ HSSC_18_NIPWG_ANNEX_F_S125TG_Interoperability-guidance_Draft_005.pdf
Version Date	2026-06-01
S-100 Version	5.2.0
Feature Catalogue	Unsigned_125_FC_1.0.0: uploaded 01 June 2026 Uploader:Jeff Wootton/ 125_Feature_Catalogue_1.0.0.xml
Portrayal Catalogue	Unsigned_125_PC_1.0.0: uploaded 01 June 2026 Uploader:Jeff Wootton/ 125_Portrayal_Catalogue_1.0.0.zip