art_25__para_4
Schengen Borders Code
4. The total period during which border control is reintroduced at internal borders, including any prolongation provided for under paragraph 3 of this Article, shall not exceed six months. Where there are exceptional circumstances as referred to in Article 29, that total period may be extended to a maximum length of two years, in accordance with paragraph 1 of that Article.
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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.