# 民法 / Civil Code — 第四百条 (Article 400)

- 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: 第四百条 (Article 400)（特定物の引渡しの場合の注意義務） — address `art-400`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-400
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-400
- 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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### 第四百条（特定物の引渡しの場合の注意義務） — (Duty of Care in Cases of Delivery of Specific Things)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-400 · https://japanlaw.org/en/civil-code/art-400 · https://japanlaw.org/l/129AC0000000089/art-400</sup>

    **第一項**  債権の目的が特定物の引渡しであるときは、債務者は、その引渡しをするまで、契約その他の債権の発生原因及び取引上の社会通念に照らして定まる善良な管理者の注意をもって、その物を保存しなければならない。
    <sup>art-400/par-1 · https://japanlaw.org/en/civil-code/art-400/par-1 · https://japanlaw.org/l/129AC0000000089/art-400/par-1</sup>
    If the subject of a claim is the delivery of a specific thing, the obligor must retain the thing with the due care of a prudent manager, which is determined in light of the contract or other sources of claims and the common sense trading practices, until the delivery.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

## Cited by

1 provision cites this one. No official source publishes this direction.

- 民法 附則第十四条第一項（債権の目的に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-4291-44/art-14/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-14/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