Supplementary Provisions, Article 11
第十一条
The provisions of the preceding Article apply mutatis mutandis to a person (excluding the head of the family register) entered in a family register in which the surname kana characters or characters displaying a pronunciation of the surname other than the general pronunciation have been entered pursuant to the provisions of Article 9, paragraph (1) or (3) of the Supplementary Provisions, and who is entered at the head of the new family register; provided, however, that this does not apply if the notifications referred to in paragraphs (1) through (4) of the preceding Article or the notifications referred to in paragraphs (1) through (4) of the preceding Article as applied mutatis mutandis pursuant to this Article have been made concerning the surname entered in the new family register before the day that new family register was created.
前条の規定は、附則第九条第一項又は第三項の規定により氏の振り仮名又は一般の読み方以外の氏の読み方を示す文字が記載された戸籍に記載されている者（筆頭者を除く。）であって、新戸籍の筆頭に記載されるものについて準用する。ただし、当該新戸籍が編製される日前に当該新戸籍に記載される氏について前条第一項から第四項までの届出又はこの条において準用する前条第一項から第四項までの届出がされているときは、この限りでない。