Among basic factors in ensuring an effective public administration, professionalism and civil servants‟ integrity are listed. There are several negative phenomena in the current society, such as corruption, conflicts of interest, incompatibilities, preferential treatment, etc. Such phenomena affect efficient functioning of public institutions and generate citizen‟s distrust in the public administration. This requires actions of prevention, explanation and ethical behavior management in public institutions. Establishing an ethical behavior of civil servants requires, on one hand, a stipulation of ethical standards in a legal framework, while on the other hand requiring also an ethics management in a public institution. We believe achieving a balance between compulsion and motivation of civil servants is needed in order to act in accordance with ethical principles.