noun
family register book; family registry archive
Refers to the official bound volume or archive where family registers (戸籍) are kept, typically at a municipal office. Not the individual certificate (戸籍謄本/抄本) but the master record book.
市役所で戸籍簿を閲覧するには申請が必要だ。
You need to apply to view the family register book at the city hall.
古い戸籍簿は法務局に保管されている。
Old family register books are kept at the Legal Affairs Bureau.
戸籍謄本 is a certified copy of an individual family register, whereas 戸籍簿 is the master record book.
Compound of 戸籍 (family register) and 簿 (record book, register).