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Civil Code

民法(みんぽう)

Chapter III Benevolent Intervention in Another's Affairs

The law as Act Partially Amending the Civil Code, etc. (Act No. 45 of 2026) leaves it, with the words it changes marked.

The main text is read a page at a time: a chapter to a page, and a long chapter in runs of articles. The whole main text, and the supplementary provisions and appended tables this amendment changes. Those it leaves untouched are on the page for the text in force.

Chapter III Benevolent Intervention in Another's Affairs第三章 事務管理

Article 697第六百九十七条

Benevolent Intervention in Another's Affairs(事務管理)
Article 697, paragraph (1)

A person that has begun to manage affairs for another person without being obligated to do so (in this Chapter referred to as a "manager" below) must manage that affairs, in accordance with the nature of the affairs, in the way that best suits the interests of the principal (referred to as "benevolent intervention in another's affairs" below).

義務なく他人のために事務の管理を始めた者(以下この章において「管理者」という。)は、その事務の性質に従い、最も本人の利益に適合する方法によって、その事務の管理(以下「事務管理」という。)をしなければならない。

Article 697, paragraph (2)

A manager must engage in benevolent intervention in another's affairs in accordance with the intentions of the principal if the manager knows, or is able to conjecture that intention.

管理者は、本人の意思を知っているとき、又はこれを推知することができるときは、その意思に従って事務管理をしなければならない。

Article 698第六百九十八条

Urgent Benevolent Intervention in Another's Affairs(緊急事務管理)
Article 698, paragraph (1)

If a manager engages in benevolent intervention in another's affairs in order to allow a principal to escape imminent danger to the principal's person, reputation, or property, the manager is not liable to compensate for damage resulting from this unless the manager has acted in bad faith or with gross negligence.

管理者は、本人の身体、名誉又は財産に対する急迫の危害を免れさせるために事務管理をしたときは、悪意又は重大な過失があるのでなければ、これによって生じた損害を賠償する責任を負わない。

Article 699第六百九十九条

Obligation of Managers to Give Notice(管理者の通知義務)
Article 699, paragraph (1)

A manager must notify the principal without delay that the manager has commenced benevolent intervention in the principal's affairs; provided, however, that this does not apply if the principal already knows of this.

管理者は、事務管理を始めたことを遅滞なく本人に通知しなければならない。ただし、本人が既にこれを知っているときは、この限りでない。

Article 700第七百条

Continuation of Benevolent Intervention in Another's Affairs by Managers(管理者による事務管理の継続)
Article 700, paragraph (1)

A manager must continue the benevolent intervention in another's affairs until the principal or their heir or legal representative is able to undertake it; provided, however, that this does not apply if it is evident that the continuation of the benevolent intervention in another's affairs is contrary to the intention of the principal, or is disadvantageous to the principal.

管理者は、本人又はその相続人若しくは法定代理人が管理をすることができるに至るまで、事務管理を継続しなければならない。ただし、事務管理の継続が本人の意思に反し、又は本人に不利であることが明らかであるときは、この限りでない。

Article 701第七百一条

Mutatis Mutandis Application of Provisions on Mandates(委任の規定の準用)
Article 701, paragraph (1)

The provisions of Article 645 through Article 647 apply mutatis mutandis to the benevolent intervention in another's affairs.

第六百四十五条から第六百四十七条までの規定は、事務管理について準用する。

Article 702第七百二条

Managers' Claims for Reimbursement of Costs(管理者による費用の償還請求等)
Article 702, paragraph (1)

If a manager has incurred beneficial expenses for a principal, the manager may claim reimbursement of those costs from the principal.

管理者は、本人のために有益な費用を支出したときは、本人に対し、その償還を請求することができる。

Article 702, paragraph (2)

The provisions of Article 650, paragraph (2) apply mutatis mutandis if a manager has incurred beneficial obligations on behalf of the principal.

第六百五十条第二項の規定は、管理者が本人のために有益な債務を負担した場合について準用する。

Article 702, paragraph (3)

If a manager has engaged in the benevolent intervention in another's affairs against the intention of the principal, the provisions of the preceding two paragraphs apply, solely to the extent currently enriched.

管理者が本人の意思に反して事務管理をしたときは、本人が現に利益を受けている限度においてのみ、前二項の規定を適用する。

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