Judgment of the Court (Grand Chamber) of 5 October 2004 in Joined Cases C-397/01 to C-403/01 (reference for a preliminary ruling from the Arbeitsgericht Lörrach): Bernhard Pfeiffer (C-397/01), Wilhelm Roith (C-398/01), Albert Süß (C-399/01), Michael Winter (C-400/01), Klaus Nestvogel (C-401/01), Roswitha Zeller (C-402/01), Matthias Döbele (C-403/01) v Deutsches Rotes Kreuz, Kreisverband Waldshut eV (Social policy — Protection of the health and safety of workers — Directive 93/104/EC — Scope — Emergency workers in attendance in ambulances in the framework of an emergency service run by the German Red Cross — Definition of ‘road transport’ — Maximum weekly working time — Principle — Direct effect — Derogation — Conditions)