This Act comes into effect on October 1, 2019; provided, however, that the following Article, the proviso to Article 3, and the provisions of Article 8 through Article 10 of the Supplementary Provisions, the amending provision in Article 13 of the Supplementary Provisions amending row 94 of Appended Table 1 and row 116 of Appended Table 2 of the Act on the Use of Numbers to Identify a Specific Individual in Administrative Procedures (Act No. 27 of 2013) (limited to the part pertaining to row 94 of Appended Table 1), and the provisions of Article 14 and Article 17 of the Supplementary Provisions, come into effect on the date of promulgation.

During the period from the date of promulgation of this Act to the day before the effective date, the phrase "or the provision of facility-use benefits, etc. for child-rearing, or" in row 94 of Appended Table 1 of the Act on the Use of Numbers to Identify a Specific Individual in Administrative Procedures as amended by the preceding Article is deemed to be replaced with "the provision of,", and the term "implementation" with "implementation or the certification under Article 2 of the Supplementary Provisions of that Act pursuant to the Act Partially Amending the Act on Support for Children and Child-rearing (Act No. 7 of 2019)".

Beyond what is provided for in these Supplementary Provisions, transitional measures necessary incidental to the enforcement of this Act are specified by Cabinet Order.