Per una valutazione civile delle pubbliche amministrazioni - The paper highlights the process of social and institutional change within which evaluation practices are embedded in Italy. To recall the main institutional and normative framework through which the Italian public administration has read its own change can explain the reason why evaluation is necessarily a part of collective decision processes and of their institutionalization. The role participation procedures to public decision processes play in this change reveal the main social and cultural issues which are at stake: the due process and the separation of powers the one no more considered, as it once was, as a criterion and a boundary for administrative action; the other no more assumed as a democratic criterion to distinguish public decisions as either political or administrative ones. Administrative action and political decisions can be no more conclusively identified within the legal framework. They are constituted by the procedural enactment of administrative planning processes; they are also the focus of what we define as civil evaluation: the kind of evaluation processes which are strategic in the re-definition of both citizenship and administration as well as in the institutionalization of their mutual relationship. Key words: institutional change, administrative rules, civil evaluation, collective decisions.