# 民法 / Civil Code — 第十七条 (Article 17)

- 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: 第十七条 (Article 17)（補助人の同意を要する旨の審判等） — address `art-17`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-17
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-17
- 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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### 第十七条（補助人の同意を要する旨の審判等） — (Decisions Requiring Person to Obtain Consent of Assistant)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-17 · https://japanlaw.org/ja/civil-code/art-17 · https://japanlaw.org/l/129AC0000000089/art-17</sup>

    **第一項**  家庭裁判所は、第十五条第一項本文に規定する者又は補助人若しくは補助監督人の請求により、被補助人が特定の法律行為をするにはその補助人の同意を得なければならない旨の審判をすることができる。ただし、その審判によりその同意を得なければならないものとすることができる行為は、第十三条第一項に規定する行為の一部に限る。
    <sup>art-17/par-1 · https://japanlaw.org/ja/civil-code/art-17/par-1 · https://japanlaw.org/l/129AC0000000089/art-17/par-1</sup>
    At the request of the person referred to in the main clause of Article 15, paragraph (1) or the assistant or assistant's supervisor, the family court may decide that the person under assistantship must obtain the consent of the person's assistant in order to perform a specific juridical act; provided, however, that the acts that such a decision may establish as those for which the person must obtain the consent of the assistant are restricted to a part of the acts provided for in Article 13, paragraph (1).
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第二項**  本人以外の者の請求により前項の審判をするには、本人の同意がなければならない。
    <sup>art-17/par-2 · https://japanlaw.org/ja/civil-code/art-17/par-2 · https://japanlaw.org/l/129AC0000000089/art-17/par-2</sup>
    The issuance of a decision referred to in the preceding paragraph at the request of a person other than the person in question requires the consent of the person in question.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第三項**  補助人の同意を得なければならない行為について、補助人が被補助人の利益を害するおそれがないにもかかわらず同意をしないときは、家庭裁判所は、被補助人の請求により、補助人の同意に代わる許可を与えることができる。
    <sup>art-17/par-3 · https://japanlaw.org/ja/civil-code/art-17/par-3 · https://japanlaw.org/l/129AC0000000089/art-17/par-3</sup>
    If the assistant does not consent to an act for which the person under assistantship must obtain the assistant's consent even though it is unlikely to prejudice the interests of the person under assistantship, the family court may grant permission that operates in lieu of the assistant's consent, at the request of the person under assistantship.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第四項**  補助人の同意を得なければならない行為であって、その同意又はこれに代わる許可を得ないでしたものは、取り消すことができる。
    <sup>art-17/par-4 · https://japanlaw.org/ja/civil-code/art-17/par-4 · https://japanlaw.org/l/129AC0000000089/art-17/par-4</sup>
    An act for which the person under assistantship must obtain the assistant's consent may be revoked if the person performs it without obtaining the assistance's consent or a permission that operates in lieu of it.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-17/par-1: 第十五条第一項 → 民法 第十五条第一項 (Article 15, paragraph (1)), art-15/par-1 — https://japanlaw.org/ja/civil-code/art-15/par-1 · https://japanlaw.org/l/129AC0000000089/art-15/par-1
- art-17/par-1: 第十三条第一項 → 民法 第十三条第一項 (Article 13, paragraph (1)), art-13/par-1 — https://japanlaw.org/ja/civil-code/art-13/par-1 · https://japanlaw.org/l/129AC0000000089/art-13/par-1
- art-17/par-2: 前項 → 民法 第十七条第一項 (Article 17, paragraph (1)), art-17/par-1 — https://japanlaw.org/ja/civil-code/art-17/par-1 · https://japanlaw.org/l/129AC0000000089/art-17/par-1

## Cited by

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

- 民法 第十三条第一項第十号（保佐人の同意を要する行為等） — https://japanlaw.org/ja/civil-code/art-13/par-1/item-10 · https://japanlaw.org/l/129AC0000000089/art-13/par-1/item-10
- 民法 第十五条第三項（補助開始の審判） — https://japanlaw.org/ja/civil-code/art-15/par-3 · https://japanlaw.org/l/129AC0000000089/art-15/par-3
- 民法 第十七条第二項（補助人の同意を要する旨の審判等） — https://japanlaw.org/ja/civil-code/art-17/par-2 · https://japanlaw.org/l/129AC0000000089/art-17/par-2
- 民法 第十八条第二項（補助開始の審判等の取消し） — https://japanlaw.org/ja/civil-code/art-18/par-2 · https://japanlaw.org/l/129AC0000000089/art-18/par-2
- 民法 第十八条第三項（補助開始の審判等の取消し） — https://japanlaw.org/ja/civil-code/art-18/par-3 · https://japanlaw.org/l/129AC0000000089/art-18/par-3
- 民法 第二十条第四項（制限行為能力者の相手方の催告権） — https://japanlaw.org/ja/civil-code/art-20/par-4 · https://japanlaw.org/l/129AC0000000089/art-20/par-4
- 民法 第九百六十二条第一項 — https://japanlaw.org/ja/civil-code/art-962/par-1 · https://japanlaw.org/l/129AC0000000089/art-962/par-1

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## 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
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11
