This article discusses what kind of changes may occur, concerning the Presidential Decrees (PD), in the precedent by The Constitutional Court regarding the legal regime of Decrees with the force of law. The PDs issued during the state of emergency are not included in the scope of this article. It, basically, focuses on the state of normalcy PDs requiring explanation in many ways. In principle, this discussion is approached in accordance with the precedent by The Constitutional Court regarding the Decrees with the force of law. Furthermore, this article lays emphasis on the opinions, which are suggested in the doctrine, concerning the Decrees with the force of law, and Presidential Decrees. Following the change of the government system, ordinance power has been transferred to the President singly; and within the firm principle of separation of powers, there has been a shift from the practice of Decree with the force of law based on the Empowering Act to Presidential Decrees based directly on the Constitution. In the place of decrees which have the force of law, Presidential Decrees which are included in the law itself have been accepted. In fact, PDs have legislative function with firsthand regulatory power. In the face of Decrees with the force of law, only exclusive domains were accepted as such domains of law; an exclusive domain for Decrees with the force of law was not adopted. On the other hand, concerning PDs not having the force of law, all cases foreseen to be regulated in code have been considered exclusive domain of law. Despite this, exceptions introduced by the special provisions concerning the principle of the legality of the administration have become exclusive domain of PDs. As PDs are issued with the authority provided by the Constitution itself, they are exceptions to the principle of non-delegation of the legislative power. As with the Decrees with the force of law, the Constitutional Court has been assigned with the compliance auditing of PDs. In the framework of auditing the compliance with the Constitution, the position of PDs with respect to laws must be analyzed.