Opinion of Advocate General Mischo delivered on 4 June 1991

1 Original language: French.

2 Regulation No 574/72 of 21 March 1972 laying down the procedure for implementing Regulation (EEC) No 1408/71 on the application of social security schemes to employed persons and their families moving within the Community (OJ, English Special Edition 1972 (I), p. 159).

3 OJ, English Special Edition 1971 (II), p. 416.

4 See the judgment in Case 80/70 Sabena v Defretme [1971] ECR 445, paragraph 7, in Case 170/84 Büka-Kaußaus [1986] ECR 1607, paragraph 17, and in Case C-262/88 Barber [1990] ECR I-1889.

5 See the judgment in Case 70/80 Vigier v Bundesversicherungsanstalt für Angestellte [1981] ECR 229, paragraph 15.

6 See, for example, the judgment in Case 139/82 Piscitello v INPS [1983] ECR 1472, at paragraph 9.

7 See in particular the judgments in Case 249/83 Hoeckx v Openbaar Centrum voor Maatschappelijk Welzijn [1985] ECR 973, paragraph 11, and Case 122/84 Scrivner v Centre Public d'Aide Social de Chastre [1985] ECR 1027.

8 See, in addition to the judgments in the Piscitello, Hoeckx and Scrivner cases mentioned above, the judgments in Case 1/72 Frilli v Belgium [1972] ECR 457, Case 187/73 Callemeyn v Belgium [1974] ECR 553, Case 24/74 Caisse Régionale d'Assurance Maladie v Biason [1974] ECR 999, Case 39/74 Costa v Belgium [1974] ECR 1251, Joined Cases 379 to 381/85 and 93/86 CRAM Rhône-Alpes v alletti [1987] ECR 955. In its judgment in the latter cases (at paragraph 9) the Court stated that the possibility cannot be excluded that by reason of the persons covered, its objectives and its methods of application, national legislation may, at one and the same time, have links to both those categories (emphasis added).

9 See the judgments in Case 9/78 Directeur Régional de la Sécurité Sociale de Nancy v Gillard [1978] ECR 1661 and Case 207/78 Even [1979] ECR 2019.

10 See paragraphs 12 and 19 respectively of the abovemenúoned judgments ul the Hoeckx and Scrivner cases.

11 See the judgment in the Giletti case, cited above, at paragraph 7.

12 See paragraph 10 of the judgment in Callemeyn v Belgium, cited above.