Galileo HAS in force Reference Documents

The documents included in this section are currently in effect and supersede all previous versions.

Prior versions of Galileo HAS Documents are available for historical reference purposes on the following page: Galileo HAS Archived Programme Reference documents.

	Galileo HAS SDD v1.0 \| January 2023 This document describes the characteristics and performance of the Galileo HAS provided through the Galileo Signal-in-Space (SIS) and the Internet Data Distribution (IDD) channels. Service Notice #2026003- Updates on HAS NAGUs
	Galileo HAS SIS ICD v1.0 \| July 2023 This document presents the Galileo HAS (High Accuracy Service) User ICD (Interface Control Document) for the HAS Initial Service.
	Galileo HAS IDD ICD v1.1 \| July 2023 This document presents the transmission protocol and message formats supported by the Galileo HAS (High Accuracy Service) Internet Data Distribution (IDD) channel. This document is only available after registration to the Galileo HAS Internet Data Distribution. Show me more
	Galileo HAS Reference User Algorithm Technical Note v1.0 \| December 2025 This document presents the Galileo HAS Reference User Algorithm (UA) including the algorithm assumptions and mathematical background to facilitate the algorithm use and implementation.
	Galileo HAS Info Note v1.1 \| December 2025 This note provides an overview of the HAS service characteristics, associated high-level architecture, target market segments and roadmap.
	Galileo E6-B/C SIS Technical Note v1.0 \| January 2019 This document provides the main specification of the Galileo E6-B and E6-C codes including additional details necessary for receiver manufacturers to facilitate the development of Galileo E6-B/C enabled receivers.

	Galileo HAS SDD v1.0 \| January 2023 This document describes the characteristics and performance of the Galileo HAS provided through the Galileo Signal-in-Space (SIS) and the Internet Data Distribution (IDD) channels. Service Notice #2026003- Updates on HAS NAGUs
	Galileo HAS SIS ICD v1.0 \| July 2023 This document presents the Galileo HAS (High Accuracy Service) User ICD (Interface Control Document) for the HAS Initial Service.
	Galileo HAS IDD ICD v1.1 \| July 2023 This document presents the transmission protocol and message formats supported by the Galileo HAS (High Accuracy Service) Internet Data Distribution (IDD) channel. This document is only available after registration to the Galileo HAS Internet Data Distribution. Show me more
	Galileo HAS Reference User Algorithm Technical Note v1.0 \| December 2025 This document presents the Galileo HAS Reference User Algorithm (UA) including the algorithm assumptions and mathematical background to facilitate the algorithm use and implementation.
	Galileo HAS Info Note v1.1 \| December 2025 This note provides an overview of the HAS service characteristics, associated high-level architecture, target market segments and roadmap.
	Galileo E6-B/C SIS Technical Note v1.0 \| January 2019 This document provides the main specification of the Galileo E6-B and E6-C codes including additional details necessary for receiver manufacturers to facilitate the development of Galileo E6-B/C enabled receivers.

Show me more