# 民法 / Civil Code — 第十八条 (Supplementary Provisions, Article 18)

- 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: 第十八条 (Supplementary Provisions, Article 18)（債権者代位権に関する経過措置） — address `suppl-4291-44/art-18`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/suppl-4291-44/art-18
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-18
- 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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### 第十八条（債権者代位権に関する経過措置） — Transitional Measures Concerning Obligee's Right of Subrogation
<sup>caption: machine translation, not official</sup>
<sup>suppl-4291-44/art-18 · https://japanlaw.org/en/civil-code/suppl-4291-44/art-18 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-18</sup>

**第一項**  施行日前に旧法第四百二十三条第一項に規定する債務者に属する権利が生じた場合におけるその権利に係る債権者代位権については、なお従前の例による。
<sup>suppl-4291-44/art-18/par-1 · https://japanlaw.org/en/civil-code/suppl-4291-44/art-18/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-18/par-1</sup>
With regard to the obligee's right of subrogation relating to a right belonging to the obligor prescribed in Article 423, paragraph (1) of the Former Act, in the case where that right arose before the Effective Date, the provisions then in force continue to govern.
<sup>machine translation, not official</sup>

**第二項**  新法第四百二十三条の七の規定は、施行日前に生じた同条に規定する譲渡人が第三者に対して有する権利については、適用しない。
<sup>suppl-4291-44/art-18/par-2 · https://japanlaw.org/en/civil-code/suppl-4291-44/art-18/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-18/par-2</sup>
The provisions of Article 423-7 of the New Act do not apply to a right that the assignor prescribed in that Article has against a third party and that arose before the Effective Date.
<sup>machine translation, not official</sup>

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## Cites
- suppl-4291-44/art-18/par-2: 新法第四百二十三条の七 → 民法 第四百二十三条の七 (Article 423-7), art-423-7 — https://japanlaw.org/en/civil-code/art-423-7 · https://japanlaw.org/l/129AC0000000089/art-423-7

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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-20261011T170941-021, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11