# 民法 / Civil Code — 第六百三十七条 (Article 637) - 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: 第六百三十七条 (Article 637)（目的物の種類又は品質に関する担保責任の期間の制限） — address `art-637` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-637 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-637 - 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. --- ### 第六百三十七条（目的物の種類又は品質に関する担保責任の期間の制限） — (Limitation on Period of Warranty with Respect to Kind or Quality of Subject Matter) caption: Ministry of Justice translation — Japanese Law Translation Database System art-637 · https://japanlaw.org/en/civil-code/art-637 · https://japanlaw.org/l/129AC0000000089/art-637 **第一項** 前条本文に規定する場合において、注文者がその不適合を知った時から一年以内にその旨を請負人に通知しないときは、注文者は、その不適合を理由として、履行の追完の請求、報酬の減額の請求、損害賠償の請求及び契約の解除をすることができない。 art-637/par-1 · https://japanlaw.org/en/civil-code/art-637/par-1 · https://japanlaw.org/l/129AC0000000089/art-637/par-1 In the case prescribed in the main clause of the preceding Article, if the party ordering work fails to notify the contractor of the non-conformity to the terms of the contract within one year from the time when the party becomes aware of it, the party ordering work may not demand completion of the non-conformity of performance, demand a reduction of the remuneration, claim compensation for damage, or cancel the contract. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の規定は、仕事の目的物を注文者に引き渡した時（その引渡しを要しない場合にあっては、仕事が終了した時）において、請負人が同項の不適合を知り、又は重大な過失によって知らなかったときは、適用しない。 art-637/par-2 · https://japanlaw.org/en/civil-code/art-637/par-2 · https://japanlaw.org/l/129AC0000000089/art-637/par-2 The provisions of the preceding paragraph do not apply if the contractor knew or did not know due to gross negligence the non-conformity referred to in that paragraph at the time when the contractor delivers the subject matter of work (in the case of the subject matter of work that is not required to be delivered, when the work is finished). Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-637/par-1: 前条 → 民法 第六百三十六条 (Article 636), art-636 — https://japanlaw.org/en/civil-code/art-636 · https://japanlaw.org/l/129AC0000000089/art-636 - art-637/par-2: 前項 → 民法 第六百三十七条第一項 (Article 637, paragraph (1)), art-637/par-1 — https://japanlaw.org/en/civil-code/art-637/par-1 · https://japanlaw.org/l/129AC0000000089/art-637/par-1 ## Cited by 1 provision cites this one. No official source publishes this direction. - 民法 第六百三十七条第二項（目的物の種類又は品質に関する担保責任の期間の制限） — https://japanlaw.org/en/civil-code/art-637/par-2 · https://japanlaw.org/l/129AC0000000089/art-637/par-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 - This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11