official copy of part of family register
A certified extract of a family register (戸籍) containing only selected entries, as opposed to a complete transcript (戸籍謄本). Used in legal and administrative contexts.
パスポートの申請には戸籍抄本が必要です。
An official copy of part of the family register is required for passport applications.
戸籍謄本 is a complete copy of the entire family register, while 戸籍抄本 is an extract showing only one person's entry, and the two are easily mixed up because of their similar names.
Compound of 戸籍 (family register) and 抄本 (extract, abridged copy).