The administrative act, a legal institution of rare preeminence in any legal system of the democratic world, represents a symbol of the structured activity of administration. It involves the manner of transposing the imperative, unequivocal, and unidirectional will of superordinate state structures into objective reality. This will enters specialized legal relations and is characterized by the exercise of public power.
 The administrative act represents, in this manner, a representative and well-defined means of imposing the will of organized state structures at every level of society by transposing informed but conceptualized will into a materialized and easily perceptible resort.
 As conceptualized in Romanian doctrine, the specific act of administrative law represents the primary and revealing form of public administration activity. It is the only legal act issued/adopted by authorities, institutions, or other public bodies that produces concrete effects concerning its recipients and beyond.
 However, this distinct type of legal act is characterized by a series of distinctive features that individualize it within the framework of internal legal relations and reveal its specific aspects, as well as the effects emanating from its content.
 Not all administrative acts have the same form, structure, effects, characteristics, purposes, and certainly, not all have the same impact on the individualized legal order at the level of society.
 Therefore, in specialized doctrine followed by the practice of national courts, a series of distinct criteria have been imposed for crystallizing distinct typologies of administrative acts.