# 民法 / Civil Code — 第八百五十七条の二 (Article 857-2)

- 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: 第八百五十七条の二 (Article 857-2)（未成年後見人が数人ある場合の権限の行使等） — address `art-857-2`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-857-2
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-857-2
- 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.

---

### 第八百五十七条の二（未成年後見人が数人ある場合の権限の行使等） — (Exercise of Authority; Minor Ward with Multiple Guardians)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-857-2 · https://japanlaw.org/ja/civil-code/art-857-2 · https://japanlaw.org/l/129AC0000000089/art-857-2</sup>

    **第一項**  未成年後見人が数人あるときは、共同してその権限を行使する。
    <sup>art-857-2/par-1 · https://japanlaw.org/ja/civil-code/art-857-2/par-1 · https://japanlaw.org/l/129AC0000000089/art-857-2/par-1</sup>
    If a minor ward has multiple guardians, they exercise their authority jointly.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第二項**  未成年後見人が数人あるときは、家庭裁判所は、職権で、その一部の者について、財産に関する権限のみを行使すべきことを定めることができる。
    <sup>art-857-2/par-2 · https://japanlaw.org/ja/civil-code/art-857-2/par-2 · https://japanlaw.org/l/129AC0000000089/art-857-2/par-2</sup>
    If a minor ward has multiple guardians, the family court may determine sua sponte that some of the guardians may only exercise their authority over the minor's property.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第三項**  未成年後見人が数人あるときは、家庭裁判所は、職権で、財産に関する権限について、各未成年後見人が単独で又は数人の未成年後見人が事務を分掌して、その権限を行使すべきことを定めることができる。
    <sup>art-857-2/par-3 · https://japanlaw.org/ja/civil-code/art-857-2/par-3 · https://japanlaw.org/l/129AC0000000089/art-857-2/par-3</sup>
    If a minor ward has multiple guardians, the family court may determine sua sponte that each guardian may exercise authority independently, or that the multiple guardians must exercise their authority according to a division of labor, in respect of their authority over the minor's property.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第四項**  家庭裁判所は、職権で、前二項の規定による定めを取り消すことができる。
    <sup>art-857-2/par-4 · https://japanlaw.org/ja/civil-code/art-857-2/par-4 · https://japanlaw.org/l/129AC0000000089/art-857-2/par-4</sup>
    The family court may rescind, sua sponte, a determination under the provisions of the preceding two paragraphs.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第五項**  未成年後見人が数人あるときは、第三者の意思表示は、その一人に対してすれば足りる。
    <sup>art-857-2/par-5 · https://japanlaw.org/ja/civil-code/art-857-2/par-5 · https://japanlaw.org/l/129AC0000000089/art-857-2/par-5</sup>
    If a minor ward has multiple guardians, it is sufficient for a manifestation of intention by a third party be made to one of them.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

---

## Cites
- art-857-2/par-4: 前二項 → 民法 第八百五十七条の二第二項 (Article 857-2, paragraph (2)), art-857-2/par-2 — https://japanlaw.org/ja/civil-code/art-857-2/par-2 · https://japanlaw.org/l/129AC0000000089/art-857-2/par-2
- art-857-2/par-4: 前二項 → 民法 第八百五十七条の二第三項 (Article 857-2, paragraph (3)), art-857-2/par-3 — https://japanlaw.org/ja/civil-code/art-857-2/par-3 · https://japanlaw.org/l/129AC0000000089/art-857-2/par-3

## Cited by

2 provisions cite this one. No official source publishes this direction.

- 民法 第八百五十二条第一項（委任及び後見人の規定の準用） — https://japanlaw.org/ja/civil-code/art-852/par-1 · https://japanlaw.org/l/129AC0000000089/art-852/par-1
- 民法 第八百五十七条の二第四項（未成年後見人が数人ある場合の権限の行使等） — https://japanlaw.org/ja/civil-code/art-857-2/par-4 · https://japanlaw.org/l/129AC0000000089/art-857-2/par-4

---

## 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 2 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4275/tb), 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
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11
