Article 3 (Applicability regarding Provision of Communication Confirmation Data and Notice of the Fact of Provision) The amended provisions of Articles 13 (2) and 13-3 (1) through (6) shall apply for the provision of communication confirmation data for which a request is filed after this Act enters into force. ADDENDUM <Act No. 17090, Mar. 24, 2020> Article 1 (Enforcement Date) This Act shall enter into force on the date of its promulgation. Article 2 (Applicability regarding Management of Materials Acquired through CommunicationRestricting Measures on Internet Connections for Criminal Investigation) The amended provisions of Article 12-2 shall begin to apply for communication-restricting measures on telecommunications transmitted and received through internet connections for which a request is filed after this Act enters into force. ADDENDA <Act No. 17125, Mar. 24, 2020> Article 1 (Enforcement Date) This Act shall enter into force on February 9, 2021. (Proviso Omitted.) Articles 2 through 4 Omitted. ADDENDUM <Act No. 17347, Jun. 9, 2020> This Act shall enter into force on the date of its promulgation. ADDENDUM <Act No. 17831, Jan. 5, 2021> This Act shall enter into force on the date of its promulgation. ADDENDA <Act No. 17935, Mar. 16, 2021> Article 1 (Enforcement Date) This Act shall enter into force on the date of its promulgation. Article 2 (Applicability) The amended provisions of Articles 9-2 (2), 9-3 (2), and 13-3 (1) shall also apply where a judicial police officer imposes a disposition not to transfer a case to prosecutors or makes a decision to suspend investigation before this Act enters into force.