# 民法 / Civil Code — 第五条 (Supplementary Provisions, Article 5)

- 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: 第五条 (Supplementary Provisions, Article 5)（胎児の認知及び認知の無効に関する経過措置） — address `suppl-5041-102/art-5`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/suppl-5041-102/art-5
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-5
- 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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### 第五条（胎児の認知及び認知の無効に関する経過措置） — Transitional Measures Concerning Acknowledgment of Parentage of an Unborn Child and Invalidity of Acknowledgment of Parentage
<sup>caption: machine translation, not official</sup>
<sup>suppl-5041-102/art-5 · https://japanlaw.org/ja/civil-code/suppl-5041-102/art-5 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-5</sup>

**第一項**  新民法第七百八十三条第二項の規定は、施行日以後に生まれる子について適用する。
<sup>suppl-5041-102/art-5/par-1 · https://japanlaw.org/ja/civil-code/suppl-5041-102/art-5/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-5/par-1</sup>
The provisions of Article 783, paragraph (2) of the New Civil Code apply to a child born on or after the Effective Date.
<sup>machine translation, not official</sup>

**第二項**  新民法第七百八十六条の規定は、施行日以後にされる認知について適用し、施行日前にされた認知に対する反対の事実の主張については、なお従前の例による。
<sup>suppl-5041-102/art-5/par-2 · https://japanlaw.org/ja/civil-code/suppl-5041-102/art-5/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-5/par-2</sup>
The provisions of Article 786 of the New Civil Code apply to an acknowledgment of parentage made on or after the Effective Date, and the provisions then in force continue to govern the assertion of facts to the contrary against an acknowledgment of parentage made before the Effective Date.
<sup>machine translation, not official</sup>

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## Cites
- suppl-5041-102/art-5/par-1: 新民法第七百八十三条第二項 → 民法 第七百八十三条第二項 (Article 783, paragraph (2)), art-783/par-2 — https://japanlaw.org/ja/civil-code/art-783/par-2 · https://japanlaw.org/l/129AC0000000089/art-783/par-2
- suppl-5041-102/art-5/par-2: 新民法第七百八十六条 → 民法 第七百八十六条 (Article 786), art-786 — https://japanlaw.org/ja/civil-code/art-786 · https://japanlaw.org/l/129AC0000000089/art-786

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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-20261011T170941-027, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11