The Hearing Phase in Administrative Procedure: A Comparative Analysis of the Italian, Austrian, and Spanish Models

Abstract

The essay analyzes the gradual formation of the thema disputandum, the thema probandum, and—through them—the thema decidendum, highlighting the role of the application in defining the original scope of the proceeding and the impact of the participation of interested parties on its subsequent reshaping. It follows that gradual development cannot amount to permanent indeterminacy: the stabilization of the object presupposes rules of concentration and preclusion. From this perspective, a typology of preclusions is identified—constitutive and functional in cases of administrative silence; evidentiary in internal procedural stages; participatory in the dialectical phase—and its operation is tested in the Italian, Spanish, and Austrian systems. Particular attention is devoted, within the Italian framework, to Article 10-bis of Law No. 241/1990, interpreted as a mechanism of procedural non-contestation: the communication of adverse grounds definitively binds the administration, while the inertia of the interested party produces effects at the internal substantive level, without precluding access to judicial review.

The comparative analysis shows that differences in legislative technique(more synthetic in Italy, more formalized in Spain and Austria) do not affect the ordering function of trattazione, but rather modulate its degree of visibility and the rigidity of its closing thresholds. The essay thus reconstructs trattazione as a structural dimension of administrative proceedings, necessary to ensure the rationality of the substantive process and the definition of the concrete regulation of interests.