In addition to the registered domicile, the following particulars must be entered in a family register for each person in the family register:
戸籍には、本籍のほか、戸籍内の各人について、次に掲げる事項を記載しなければならない。
name;
氏名
kana characters indicating the name (kana characters used to display the pronunciation of the characters used in the surname (referred to below as the "surname kana characters") and kana characters used to display the pronunciation of the characters used in the given name (referred to below as the "given name kana characters"); the same applies below)
氏名の振り仮名（氏に用いられる文字の読み方を示す文字（以下「氏の振り仮名」という。）及び名に用いられる文字の読み方を示す文字（以下「名の振り仮名」という。）をいう。以下同じ。）
date of birth;
出生の年月日
the reason and date of the entry in the family register;
戸籍に入つた原因及び年月日
the names of the natural parents and the relationship with the natural parents;
実父母の氏名及び実父母との続柄
in the case of an adopted child, the names of the adoptive parents and the relationship with the adoptive parents;
養子であるときは、養親の氏名及び養親との続柄
for a husband and wife, a statement that they are husband and wife;
夫婦については、夫又は妻である旨
for a person whose name has been moved from another family register, information identifying the former family register; and
他の戸籍から入つた者については、その戸籍の表示
other particulars specified by Ministry of Justice Order.
その他法務省令で定める事項
The pronunciation referred to in item (ii) of the preceding paragraph must be the generally accepted pronunciation of the characters when used as part of a name.
前項第二号の読み方は、氏名として用いられる文字の読み方として一般に認められているものでなければならない。
The range of the characters and marks that may be used as the kana characters for names is specified by Ministry of Justice Order.
氏名の振り仮名に用いることができる仮名及び記号の範囲は、法務省令で定める。