# 民法 / Civil Code — 第百五十一条 (Article 151) - 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: 第百五十一条 (Article 151)（協議を行う旨の合意による時効の完成猶予） — address `art-151` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-151 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-151 - 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. --- ### 第百五十一条（協議を行う旨の合意による時効の完成猶予） — (Postponement of Expiration of Prescription Period through Agreement on Holding Discussion) caption: Ministry of Justice translation — Japanese Law Translation Database System art-151 · https://japanlaw.org/en/civil-code/art-151 · https://japanlaw.org/l/129AC0000000089/art-151 **第一項** 権利についての協議を行う旨の合意が書面でされたときは、次に掲げる時のいずれか早い時までの間は、時効は、完成しない。 art-151/par-1 · https://japanlaw.org/en/civil-code/art-151/par-1 · https://japanlaw.org/l/129AC0000000089/art-151/par-1 If an agreement on holding a discussion concerning a right is made in writing, the prescription period does not expire until the earliest of the following points in time: Ministry of Justice translation — Japanese Law Translation Database System **一** その合意があった時から一年を経過した時 art-151/par-1/item-1 · https://japanlaw.org/en/civil-code/art-151/par-1/item-1 · https://japanlaw.org/l/129AC0000000089/art-151/par-1/item-1 when one year has passed from the time of the agreement; Ministry of Justice translation — Japanese Law Translation Database System **二** その合意において当事者が協議を行う期間（一年に満たないものに限る。）を定めたときは、その期間を経過した時 art-151/par-1/item-2 · https://japanlaw.org/en/civil-code/art-151/par-1/item-2 · https://japanlaw.org/l/129AC0000000089/art-151/par-1/item-2 if the period during which the parties are to hold a discussion is specified by the agreement (limited to a period less than one year): when that period has expired; or Ministry of Justice translation — Japanese Law Translation Database System **三** 当事者の一方から相手方に対して協議の続行を拒絶する旨の通知が書面でされたときは、その通知の時から六箇月を経過した時 art-151/par-1/item-3 · https://japanlaw.org/en/civil-code/art-151/par-1/item-3 · https://japanlaw.org/l/129AC0000000089/art-151/par-1/item-3 if one of the parties notifies the other party in writing of refusal to continue the discussion: when six months have passed from the time of the notice. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の規定により時効の完成が猶予されている間にされた再度の同項の合意は、同項の規定による時効の完成猶予の効力を有する。ただし、その効力は、時効の完成が猶予されなかったとすれば時効が完成すべき時から通じて五年を超えることができない。 art-151/par-2 · https://japanlaw.org/en/civil-code/art-151/par-2 · https://japanlaw.org/l/129AC0000000089/art-151/par-2 If an agreement referred to in the preceding paragraph is made a second time during the postponement of expiration of the prescription period granted pursuant to the provisions of that paragraph, the second agreement has the effect of postponement of expiration of prescription period under the provisions of the preceding paragraph; provided, however, that the period of that effect may not exceed five years in total from the time when the prescription period should have expired had the postponement of expiration of the prescription period not been granted. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 催告によって時効の完成が猶予されている間にされた第一項の合意は、同項の規定による時効の完成猶予の効力を有しない。同項の規定により時効の完成が猶予されている間にされた催告についても、同様とする。 art-151/par-3 · https://japanlaw.org/en/civil-code/art-151/par-3 · https://japanlaw.org/l/129AC0000000089/art-151/par-3 An agreement referred to in paragraph (1) which is made during the postponement of expiration of the prescription period granted on the ground of a demand does not have the effect of postponement of expiration of prescription period under the provisions of that paragraph. The same applies to a demand made during the postponement of expiration of the prescription period granted pursuant to the provisions of that paragraph. Ministry of Justice translation — Japanese Law Translation Database System **第四項** 第一項の合意がその内容を記録した電磁的記録（電子的方式、磁気的方式その他人の知覚によっては認識することができない方式で作られる記録であって、電子計算機による情報処理の用に供されるものをいう。以下同じ。）によってされたときは、その合意は、書面によってされたものとみなして、前三項の規定を適用する。 art-151/par-4 · https://japanlaw.org/en/civil-code/art-151/par-4 · https://japanlaw.org/l/129AC0000000089/art-151/par-4 If an agreement referred to in paragraph (1) is made by means of an electronic or magnetic record (meaning a record used in computerized information processing which is created in electronic form, magnetic form, or any other form that cannot be perceived by the human senses; the same applies below), the agreement is deemed to have been made in writing and the provisions of the preceding three paragraphs apply thereto. Ministry of Justice translation — Japanese Law Translation Database System **第五項** 前項の規定は、第一項第三号の通知について準用する。 art-151/par-5 · https://japanlaw.org/en/civil-code/art-151/par-5 · https://japanlaw.org/l/129AC0000000089/art-151/par-5 The provisions of the preceding paragraph apply mutatis mutandis to the notice referred to in paragraph (1), item (iii). Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-151/par-2: 前項 → 民法 第百五十一条第一項 (Article 151, paragraph (1)), art-151/par-1 — https://japanlaw.org/en/civil-code/art-151/par-1 · https://japanlaw.org/l/129AC0000000089/art-151/par-1 - art-151/par-3: 第一項 → 民法 第百五十一条第一項 (Article 151, paragraph (1)), art-151/par-1 — https://japanlaw.org/en/civil-code/art-151/par-1 · https://japanlaw.org/l/129AC0000000089/art-151/par-1 - art-151/par-4: 第一項 → 民法 第百五十一条第一項 (Article 151, paragraph (1)), art-151/par-1 — https://japanlaw.org/en/civil-code/art-151/par-1 · https://japanlaw.org/l/129AC0000000089/art-151/par-1 - art-151/par-4: 前三項 → 民法 第百五十一条第二項 (Article 151, paragraph (2)), art-151/par-2 — https://japanlaw.org/en/civil-code/art-151/par-2 · https://japanlaw.org/l/129AC0000000089/art-151/par-2 - art-151/par-4: 前三項 → 民法 第百五十一条第三項 (Article 151, paragraph (3)), art-151/par-3 — https://japanlaw.org/en/civil-code/art-151/par-3 · https://japanlaw.org/l/129AC0000000089/art-151/par-3 - art-151/par-5: 前項 → 民法 第百五十一条第四項 (Article 151, paragraph (4)), art-151/par-4 — https://japanlaw.org/en/civil-code/art-151/par-4 · https://japanlaw.org/l/129AC0000000089/art-151/par-4 - art-151/par-5: 第一項第三号 → 民法 第百五十一条第一項第三号 (Article 151, paragraph (1), item (iii)), art-151/par-1/item-3 — https://japanlaw.org/en/civil-code/art-151/par-1/item-3 · https://japanlaw.org/l/129AC0000000089/art-151/par-1/item-3 ## Cited by 6 provisions cite this one. No official source publishes this direction. - 民法 第百五十一条第二項（協議を行う旨の合意による時効の完成猶予） — https://japanlaw.org/en/civil-code/art-151/par-2 · https://japanlaw.org/l/129AC0000000089/art-151/par-2 - 民法 第百五十一条第三項（協議を行う旨の合意による時効の完成猶予） — https://japanlaw.org/en/civil-code/art-151/par-3 · https://japanlaw.org/l/129AC0000000089/art-151/par-3 - 民法 第百五十一条第四項（協議を行う旨の合意による時効の完成猶予） — https://japanlaw.org/en/civil-code/art-151/par-4 · https://japanlaw.org/l/129AC0000000089/art-151/par-4 - 民法 第百五十一条第五項（協議を行う旨の合意による時効の完成猶予） — https://japanlaw.org/en/civil-code/art-151/par-5 · https://japanlaw.org/l/129AC0000000089/art-151/par-5 - 民法 第百五十三条第二項（時効の完成猶予又は更新の効力が及ぶ者の範囲） — https://japanlaw.org/en/civil-code/art-153/par-2 · https://japanlaw.org/l/129AC0000000089/art-153/par-2 - 民法 附則第十条第三項（時効に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-4291-44/art-10/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-10/par-3 --- ## 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