The article analyzes the doctrinal and regulatory provisions regarding the rules of validity of the administrative act and the features of bringing its content to the attention of the relevant addressees. It is noted that the author does not support the thesis that the validity of an administrative act should be separated from its effect. It is seen that the specificity of an administrative act, which mainly consists in its individual nature, does not give grounds to extend to it the peculiarities of the entry into force and operation of laws, which, as is known, are acts of a general nature. Actually, such specificity of the administrative act, its focus on solving a specific situation gives grounds for the reverse conclusion that the moment of entry into force and the effect of the administrative act actually coincide and, as some researchers correctly note, there is no sense in distinguishing the specified categories. At the same time, it should be added that the requirements for the administrative act and the rules of its validity should not be equated with each other and an equal sign should be placed between them. The first, that is, the requirements for the act, are factors of its legality, which, among other things, affect its validity and effect, while the rules of validity, on the other hand, relate to the moment of its entry into force
 It is noted that administrative acts containing errors or other defects, depending on the nature of the defects and the resulting legal consequences, are disputable and void. It is noted that in some sources disputed acts are called objectionable or disputed. However, such a name is not entirely correct, since an act containing errors or defects does not always become the subject of an appeal, that is, it is actually challenged or denied. In this regard, it is proposed to use the term controversial, rather than objectionable (disputed) act, i.e. one that contains controversial provisions that can potentially be contested.
 It has been established that disputed are those administrative acts that have entered into force, but have defects that call into question the legality of the act and can be challenged in an administrative or judicial procedure. In turn, an administrative act adopted by an administrative body is null and void if it contains obvious significant deficiencies, the list of which is established by law. Unlike a disputed act, a void administrative act does not enter into force.