# 民法 / Civil Code — 第一条 (Supplementary Provisions, Article 1)

- 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: 第一条 (Supplementary Provisions, Article 1)（施行期日） — address `suppl-4161-76/art-1`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/suppl-4161-76/art-1
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/suppl-4161-76/art-1
- 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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### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-4161-76/art-1 · https://japanlaw.org/ja/civil-code/suppl-4161-76/art-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-76/art-1</sup>

**第一項**  この法律は、破産法（平成十六年法律第七十五号。次条第八項並びに附則第三条第八項、第五条第八項、第十六項及び第二十一項、第八条第三項並びに第十三条において「新破産法」という。）の施行の日から施行する。
<sup>suppl-4161-76/art-1/par-1 · https://japanlaw.org/ja/civil-code/suppl-4161-76/art-1/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-76/art-1/par-1</sup>
This Act comes into effect as of the date on which the Bankruptcy Act (Act No. 75 of 2004; referred to as "the new Bankruptcy Act" in paragraph (8) of the following Article and in Article 3, paragraph (8), Article 5, paragraphs (8), (16) and (21), Article 8, paragraph (3), and Article 13 of the Supplementary Provisions) comes into effect.
<sup>machine translation, not official</sup>

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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-20261011T170941-017, translated 2026-10-12
- claude-sonnet-5-5 — Machine translation, batch civil-code-20261011T170941-018, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11