Supplementary Provisions, Article 8Special Provisions Concerning Notification of Acquisition of Nationality
第八条（国籍取得の届出に関する特例）
The provision of Article 102 of the Family Register Act (Act No. 224 of 1947) applies mutatis mutandis to a notification of acquisition of nationality in the case of acquiring Japanese nationality under Article 2, paragraph (1), Article 4, paragraph (1), or Article 5, paragraph (1) of the Supplementary Provisions. In this case, the term "the day of that acquisition" in Article 102, paragraph (1) of that Act is deemed to be replaced with "the day of that acquisition (in a case where the proviso to Article 2, paragraph (3) of the Supplementary Provisions to the Act Partially Amending the Nationality Act (Act No. 88 of 2008) applies, the day of the notification under paragraph (1) of that Article (or, in a case where that notification is deemed to have been made under Article 3, paragraph (1) of the Supplementary Provisions to that Act, the day that Act comes into effect))".
戸籍法（昭和二十二年法律第二百二十四号）第百二条の規定は、附則第二条第一項、第四条第一項又は第五条第一項の規定により日本の国籍を取得した場合の国籍取得の届出について準用する。この場合において、同法第百二条第一項中「その取得の日」とあるのは、「その取得の日（国籍法の一部を改正する法律（平成二十年法律第八十八号）附則第二条第三項ただし書の規定の適用がある場合にあつては、同条第一項の規定による届出の日（同法附則第三条第一項の規定により当該届出をしたものとみなされる場合にあつては、同法の施行の日））」と読み替えるものとする。