This Act comes into effect on April 1, 2022; provided, however, that the provisions set forth in the following items come into effect on the dates specified in those items:

The Government, with a target of five years after this Act comes into effect, is to take into account changes in circumstances such as the state of enforcement of the provisions of the Act on Childcare Leave, Caregiver Leave, and Other Measures for the Welfare of Workers Caring for Children or Other Family Members as amended by Articles 1 through 3, the state of male workers' taking of childcare leave (meaning childcare leave prescribed in Article 2, item (i) of the same Act; the same applies in Article 4 of the Supplementary Provisions), and other circumstances, review the provisions of the same Act, and, when it finds this necessary, take the required measures based on the results of that review.

Childcare leave that began on a day before the day on which the provisions set forth in Article 1, item (iii) of the Supplementary Provisions come into effect (referred to as the "item (iii) effective date" in Article 7 of the Supplementary Provisions) (limited to the first childcare leave that a worker takes in order to take care of the child concerned, within the period until the day following the day on which eight weeks have passed, counting from the date of birth of the child to which that childcare leave relates (in the case where that child is born before the expected date of confinement, until the day following the day on which eight weeks have passed, counting from the expected date of confinement, from the date of that birth; and in the case where that child is born after the expected date of confinement, until the day following the day on which eight weeks have passed, counting from the date of that birth, from the expected date of confinement)) is, for the purposes of the application of Article 5, paragraph (2) and Article 9-2, paragraph (2) of the Act on Childcare Leave, Caregiver Leave, and Other Measures for the Welfare of Workers Caring for Children or Other Family Members as amended by Article 2, deemed to be parental leave prescribed in paragraph (1) of the same Article, taken by way of an application under the provisions of that paragraph.

The provisions of Article 22-2 of the Act on Childcare Leave, Caregiver Leave, and Other Measures for the Welfare of Workers Caring for Children or Other Family Members as amended by Article 3 apply from the business year beginning on or after the day on which the provisions set forth in Article 1, item (iv) of the Supplementary Provisions come into effect.

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