To report errors and/or suggest improvements in any of the Programme Reference documents, please contact the Galileo HelpDesk. Comments will be considered for inclusion in the respective “Errata Sheet”.

Based on the comments collected, the contents of the Errata Sheet may at any time be consolidated and published in a new issue of the document as an official release.


Open Service

Open Service Navigation Message Authentication

Galileo OSNMA SIS ICD (v1.0)

Galileo OSNMA Receiver Guidelines (v1.0)

Galileo OSNMA Internet Data Distribution Interface Control Document (IDD ICD)

PKI System Certificate Policy and Certification Practice Statement for ICA-001

OSNMA Typical Performance - Complementary Info

Galileo OSNMA Receiver Guidelines for Test Phase (v1.1) - (Superseded)

Annex 2 - OSNMA Test Vectors


High Accuracy Service

Search and Rescue Service



Archived Reference Documents

Galileo - Open Service - Signal In Space Operational Status Definition (OS SIS OSD)

Note: Superseded by the Galileo Open Service - Service Definition Document (OS SDD).