# 民法 / Civil Code — 第八条 (Supplementary Provisions, Article 8)

- 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: 第八条 (Supplementary Provisions, Article 8)（無効及び取消しに関する経過措置） — address `suppl-4291-44/art-8`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/suppl-4291-44/art-8
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-8
- 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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### 第八条（無効及び取消しに関する経過措置） — Transitional Measures Concerning Invalidity and Revocation
<sup>caption: machine translation, not official</sup>
<sup>suppl-4291-44/art-8 · https://japanlaw.org/ja/civil-code/suppl-4291-44/art-8 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-8</sup>

**第一項**  施行日前に無効な行為に基づく債務の履行として給付がされた場合におけるその給付を受けた者の原状回復の義務については、新法第百二十一条の二（新法第八百七十二条第二項において準用する場合を含む。）の規定にかかわらず、なお従前の例による。
<sup>suppl-4291-44/art-8/par-1 · https://japanlaw.org/ja/civil-code/suppl-4291-44/art-8/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-8/par-1</sup>
With regard to the obligation of restoration of a person that has received payment or delivery in the case where the payment or delivery was made before the Effective Date as performance of an obligation based on a void act, notwithstanding the provisions of Article 121-2 of the New Act (including as applied mutatis mutandis pursuant to Article 872, paragraph (2) of the New Act), the provisions then in force continue to govern.
<sup>machine translation, not official</sup>

**第二項**  施行日前に取り消すことができる行為がされた場合におけるその行為の追認（法定追認を含む。）については、新法第百二十二条、第百二十四条及び第百二十五条（これらの規定を新法第八百七十二条第二項において準用する場合を含む。）の規定にかかわらず、なお従前の例による。
<sup>suppl-4291-44/art-8/par-2 · https://japanlaw.org/ja/civil-code/suppl-4291-44/art-8/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-8/par-2</sup>
With regard to the ratification (including statutory ratification) of a revocable act in the case where that act was performed before the Effective Date, notwithstanding the provisions of Articles 122, 124, and 125 of the New Act (including as applied mutatis mutandis pursuant to Article 872, paragraph (2) of the New Act), the provisions then in force continue to govern.
<sup>machine translation, not official</sup>

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## Cites
- suppl-4291-44/art-8/par-1: 新法第百二十一条の二 → 民法 第百二十一条の二 (Article 121-2), art-121-2 — https://japanlaw.org/ja/civil-code/art-121-2 · https://japanlaw.org/l/129AC0000000089/art-121-2
- suppl-4291-44/art-8/par-1: 新法第八百七十二条第二項 → 民法 第八百七十二条第二項 (Article 872, paragraph (2)), art-872/par-2 — https://japanlaw.org/ja/civil-code/art-872/par-2 · https://japanlaw.org/l/129AC0000000089/art-872/par-2
- suppl-4291-44/art-8/par-2: 新法第百二十二条 → 民法 第百二十二条 (Article 122), art-122 — https://japanlaw.org/ja/civil-code/art-122 · https://japanlaw.org/l/129AC0000000089/art-122
- suppl-4291-44/art-8/par-2: 第百二十四条 → 民法 第百二十四条 (Article 124), art-124 — https://japanlaw.org/ja/civil-code/art-124 · https://japanlaw.org/l/129AC0000000089/art-124
- suppl-4291-44/art-8/par-2: 第百二十五条 → 民法 第百二十五条 (Article 125), art-125 — https://japanlaw.org/ja/civil-code/art-125 · https://japanlaw.org/l/129AC0000000089/art-125
- suppl-4291-44/art-8/par-2: 新法第八百七十二条第二項 → 民法 第八百七十二条第二項 (Article 872, paragraph (2)), art-872/par-2 — https://japanlaw.org/ja/civil-code/art-872/par-2 · https://japanlaw.org/l/129AC0000000089/art-872/par-2

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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
- claude-sonnet-5-5 — Machine translation, batch civil-code-20261011T170941-020, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11
