art_4__para_3__text_1
SIS II
CS-SIS, which performs technical supervision and administration functions, shall be located in Strasbourg (France) and a backup CS-SIS, capable of ensuring all functionalities of the principal CS-SIS in the event of failure of this system, shall be located in Sankt Johann im Pongau (Austria).
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Source: EUR-Lex (Cellar) · retrieved 2026-11-14 · Text as adopted (Official Journal); later amendments are not incorporated in this text.