48In that regard, it is ultimately for the national court, which has sole jurisdiction to assess the facts and interpret the national legislation, to determine whether and to what extent Regional Law No 12/2004 satisfies those conditions (see, to that effect, Case 171/88 Rinner-Kühn [1989] ECR 2743, paragraph 15, and Joined Cases C-4/02 and C-5/02 Schönheit and Becker [2003] ECR I-12575, paragraphs 82 and 83).
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