# 民法 / Civil Code — 第八百十八条 (Article 818)
- Law: 民法 (Civil Code), 明治二十九年法律第八十九号
- English title "Civil Code": Ministry of Justice translation
- Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say.
- Provision: 第八百十八条 (Article 818)（親権） — address `art-818`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-818
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-818
- Every provision below carries its address and both URLs on the line under it.
- Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below.
Only the Japanese as published by the government has legal effect; the text
below is a copy of it. Every English rendering below is a translation and
says which kind: the Ministry of Justice's translation, or this
site's machine translation, whose model and date the Sources list names.
They are never merged and never substituted for one another.
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### 第八百十八条（親権） — Parental Authority
caption: machine translation, not official
art-818 · https://japanlaw.org/ja/civil-code/art-818 · https://japanlaw.org/l/129AC0000000089/art-818
**第一項** 親権は、成年に達しない子について、その子の利益のために行使しなければならない。
art-818/par-1 · https://japanlaw.org/ja/civil-code/art-818/par-1 · https://japanlaw.org/l/129AC0000000089/art-818/par-1
Parental authority must be exercised in the interests of a child who has not attained the age of majority.
machine translation, not official
**第二項** 父母の婚姻中はその双方を親権者とする。
art-818/par-2 · https://japanlaw.org/ja/civil-code/art-818/par-2 · https://japanlaw.org/l/129AC0000000089/art-818/par-2
While the parents are married to each other, both of them are the persons with parental authority.
machine translation, not official
**第三項** 子が養子であるときは、次に掲げる者を親権者とする。
art-818/par-3 · https://japanlaw.org/ja/civil-code/art-818/par-3 · https://japanlaw.org/l/129AC0000000089/art-818/par-3
If the child is an adopted child, the following persons are the persons with parental authority:
machine translation, not official
**一** 養親（当該子を養子とする縁組が二以上あるときは、直近の縁組により養親となった者に限る。）
art-818/par-3/item-1 · https://japanlaw.org/ja/civil-code/art-818/par-3/item-1 · https://japanlaw.org/l/129AC0000000089/art-818/par-3/item-1
the adoptive parent (if there are two or more adoptions of the child, limited to the person who became the adoptive parent through the most recent adoption);
machine translation, not official
**二** 子の父母であって、前号に掲げる養親の配偶者であるもの
art-818/par-3/item-2 · https://japanlaw.org/ja/civil-code/art-818/par-3/item-2 · https://japanlaw.org/l/129AC0000000089/art-818/par-3/item-2
a parent of the child who is the spouse of the adoptive parent set forth in the preceding item.
machine translation, not official
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## Cites
- art-818/par-3/item-2: 前号 → 民法 第八百十八条第三項第一号 (Article 818, paragraph (3), item (i)), art-818/par-3/item-1 — https://japanlaw.org/ja/civil-code/art-818/par-3/item-1 · https://japanlaw.org/l/129AC0000000089/art-818/par-3/item-1
## Cited by
1 provision cites this one. No official source publishes this direction.
- 民法 第八百十八条第三項第二号（親権） — https://japanlaw.org/ja/civil-code/art-818/par-3/item-2 · https://japanlaw.org/l/129AC0000000089/art-818/par-3/item-2
---
## Sources
- e-Gov 法令検索, Digital Agency (デジタル庁) — 民法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/129AC0000000089/20260624_508AC0000000045), retrieved 2026-10-11
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Civil Code — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4848/tb), retrieved 2026-10-11
- claude-sonnet-5-5 — Machine translation, batch civil-code-20261011T170941-004, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11