Judgment of the Court (Second Chamber) of 13 December 2018.#Bundesrepublik Deutschland v Touring Tours und Travel GmbH and Sociedad de Transportes SA.#Request for a preliminary ruling from the Bundesverwaltungsgericht.#Reference for a preliminary ruling — Area of freedom, security and justice — Regulation (EU) No 562/2006 — Community Code on the rules governing the movement of persons across borders (Schengen Borders Code) — Articles 20 and 21 — Abolition of internal border controls in the Schengen area — Checks within the territory of a Member State — Measures having an effect equivalent to border checks — Rules of a Member State requiring a coach travel operator on routes crossing the internal borders of the Schengen area to check passengers’ passports and residence permits — Penalty — Threat to impose a recurring fine.#Case C-412/17.