# 民法 / Civil Code — 第四条 (Supplementary Provisions, Article 4) - 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: 第四条 (Supplementary Provisions, Article 4)（嫡出の否認及び嫡出の承認に関する経過措置） — address `suppl-5041-102/art-4` - 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-4 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4 - 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. --- ### 第四条（嫡出の否認及び嫡出の承認に関する経過措置） — Transitional Measures Concerning Rebutting the Presumption of Child in Wedlock and Acknowledgment of Child in Wedlock caption: machine translation, not official suppl-5041-102/art-4 · https://japanlaw.org/ja/civil-code/suppl-5041-102/art-4 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4 **第一項** 新民法第七百七十四条第一項（父の否認権に係る部分に限る。）、第七百七十五条第一項（第一号に係る部分に限る。）及び第二項（同条第一項第一号に係る部分に限る。）並びに第七百七十七条（第一号に係る部分に限る。）の規定並びに第五条の規定による改正後の人事訴訟法第四十一条第一項の規定は、施行日以後に生まれる子について適用し、施行日前に生まれた子に対する父による嫡出否認の訴えについては、なお従前の例による。 suppl-5041-102/art-4/par-1 · https://japanlaw.org/ja/civil-code/suppl-5041-102/art-4/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4/par-1 The provisions of Article 774, paragraph (1) of the New Civil Code (limited to the part pertaining to the father's right to rebut the presumption), Article 775, paragraph (1) (limited to the part pertaining to item (i)) and paragraph (2) (limited to the part pertaining to paragraph (1), item (i) of that Article), and Article 777 (limited to the part pertaining to item (i)), and the provisions of Article 41, paragraph (1) of the Personal Status Litigation Act as amended by the provisions of Article 5, apply to a child born on or after the Effective Date, and the provisions then in force continue to govern an action brought by the father against a child born before the Effective Date to rebut the presumption of the child in wedlock. machine translation, not official **第二項** 新民法第七百七十四条第一項（子の否認権に係る部分に限る。）から第三項まで、第七百七十五条第一項（第二号及び第三号に係る部分に限る。）、第七百七十六条（母に係る部分に限る。）、第七百七十七条（第二号及び第三号に係る部分に限る。以下この項において同じ。）及び第七百七十八条の二第一項の規定、第五条の規定による改正後の人事訴訟法第二十七条第二項の規定並びに第七条の規定による改正後の生殖補助医療の提供等及びこれにより出生した子の親子関係に関する民法の特例に関する法律第十条の規定は、施行日前に生まれた子についても適用する。この場合において、施行日前に生まれた子に係る嫡出否認の訴えに関する新民法第七百七十七条の適用については、同条中「当該各号に定める時から三年以内」とあるのは、「民法等の一部を改正する法律（令和四年法律第百二号）の施行の時から一年を経過する時まで」とする。 suppl-5041-102/art-4/par-2 · https://japanlaw.org/ja/civil-code/suppl-5041-102/art-4/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4/par-2 The provisions of Article 774, paragraph (1) of the New Civil Code (limited to the part pertaining to the child's right to rebut the presumption) through paragraph (3), Article 775, paragraph (1) (limited to the part pertaining to items (ii) and (iii)), Article 776 (limited to the part pertaining to the mother), Article 777 (limited to the part pertaining to items (ii) and (iii); the same applies below in this paragraph) and Article 778-2, paragraph (1), the provisions of Article 27, paragraph (2) of the Personal Status Litigation Act as amended by the provisions of Article 5, and the provisions of Article 10 of the Act on Special Provisions of the Civil Code Concerning the Provision of Assisted Reproductive Medicine, etc. and the Parent-Child Relationship of Children Born as a Result thereof, as amended by the provisions of Article 7, also apply to a child born before the Effective Date. In this case, with regard to the application of Article 777 of the New Civil Code to an action to rebut the presumption of the child in wedlock concerning a child born before the Effective Date, the phrase "within three years from the time specified in the relevant items" in that Article is deemed to be replaced with "until one year has passed from the time of enforcement of the Act Partially Amending the Civil Code, etc. (Act No. 102 of 2022)". machine translation, not official **第三項** 新民法第七百七十四条第四項及び第五項、第七百七十五条第一項（第四号に係る部分に限る。）及び第二項（同条第一項第四号に係る部分に限る。）、第七百七十七条（第四号に係る部分に限る。）、第七百七十八条、第七百七十八条の二第二項から第四項まで、第七百七十八条の三並びに第七百七十八条の四の規定は、施行日以後に生まれる子について適用する。 suppl-5041-102/art-4/par-3 · https://japanlaw.org/ja/civil-code/suppl-5041-102/art-4/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4/par-3 The provisions of Article 774, paragraphs (4) and (5) of the New Civil Code, Article 775, paragraph (1) (limited to the part pertaining to item (iv)) and paragraph (2) (limited to the part pertaining to paragraph (1), item (iv) of that Article), Article 777 (limited to the part pertaining to item (iv)), Article 778, Article 778-2, paragraphs (2) through (4), Article 778-3 and Article 778-4 apply to a child born on or after the Effective Date. machine translation, not official --- ## Cites - suppl-5041-102/art-4/par-1: 新民法第七百七十四条第一項 → 民法 第七百七十四条第一項 (Article 774, paragraph (1)), art-774/par-1 — https://japanlaw.org/ja/civil-code/art-774/par-1 · https://japanlaw.org/l/129AC0000000089/art-774/par-1 - suppl-5041-102/art-4/par-1: 第七百七十五条第一項 → 民法 第七百七十五条第一項 (Article 775, paragraph (1)), art-775/par-1 — https://japanlaw.org/ja/civil-code/art-775/par-1 · https://japanlaw.org/l/129AC0000000089/art-775/par-1 - suppl-5041-102/art-4/par-1: 第一号 → 民法 第七百七十五条第一項第一号 (Article 775, paragraph (1), item (i)), art-775/par-1/item-1 — https://japanlaw.org/ja/civil-code/art-775/par-1/item-1 · https://japanlaw.org/l/129AC0000000089/art-775/par-1/item-1 - suppl-5041-102/art-4/par-1: 第二項 → 民法 第七百七十五条第二項 (Article 775, paragraph (2)), art-775/par-2 — https://japanlaw.org/ja/civil-code/art-775/par-2 · https://japanlaw.org/l/129AC0000000089/art-775/par-2 - suppl-5041-102/art-4/par-1: 第七百七十七条 → 民法 第七百七十七条 (Article 777), art-777 — https://japanlaw.org/ja/civil-code/art-777 · https://japanlaw.org/l/129AC0000000089/art-777 - suppl-5041-102/art-4/par-1: 第一号 → 民法 第七百七十七条第一項第一号 (Article 777, paragraph (1), item (i)), art-777/par-1/item-1 — https://japanlaw.org/ja/civil-code/art-777/par-1/item-1 · https://japanlaw.org/l/129AC0000000089/art-777/par-1/item-1 - suppl-5041-102/art-4/par-1: 人事訴訟法第四十一条第一項 → e-Gov law 415AC0000000109, 第四十一条第一項 (Article 41, paragraph (1)), art-41/par-1 — not held in this collection - suppl-5041-102/art-4/par-2: 新民法第七百七十四条第一項 → 民法 第七百七十四条第一項 (Article 774, paragraph (1)), art-774/par-1 — https://japanlaw.org/ja/civil-code/art-774/par-1 · https://japanlaw.org/l/129AC0000000089/art-774/par-1 - suppl-5041-102/art-4/par-2: 第三項 → 民法 第七百七十四条第三項 (Article 774, paragraph (3)), art-774/par-3 — https://japanlaw.org/ja/civil-code/art-774/par-3 · https://japanlaw.org/l/129AC0000000089/art-774/par-3 - suppl-5041-102/art-4/par-2: 第七百七十五条第一項 → 民法 第七百七十五条第一項 (Article 775, paragraph (1)), art-775/par-1 — https://japanlaw.org/ja/civil-code/art-775/par-1 · https://japanlaw.org/l/129AC0000000089/art-775/par-1 - suppl-5041-102/art-4/par-2: 第二号 → 民法 第七百七十五条第一項第二号 (Article 775, paragraph (1), item (ii)), art-775/par-1/item-2 — https://japanlaw.org/ja/civil-code/art-775/par-1/item-2 · https://japanlaw.org/l/129AC0000000089/art-775/par-1/item-2 - suppl-5041-102/art-4/par-2: 第三号 → 民法 第七百七十五条第一項第三号 (Article 775, paragraph (1), item (iii)), art-775/par-1/item-3 — https://japanlaw.org/ja/civil-code/art-775/par-1/item-3 · https://japanlaw.org/l/129AC0000000089/art-775/par-1/item-3 - suppl-5041-102/art-4/par-2: 第七百七十六条 → 民法 第七百七十六条 (Article 776), art-776 — https://japanlaw.org/ja/civil-code/art-776 · https://japanlaw.org/l/129AC0000000089/art-776 - suppl-5041-102/art-4/par-2: 第七百七十七条 → 民法 第七百七十七条 (Article 777), art-777 — https://japanlaw.org/ja/civil-code/art-777 · https://japanlaw.org/l/129AC0000000089/art-777 - suppl-5041-102/art-4/par-2: 第二号 → 民法 第七百七十七条第一項第二号 (Article 777, paragraph (1), item (ii)), art-777/par-1/item-2 — https://japanlaw.org/ja/civil-code/art-777/par-1/item-2 · https://japanlaw.org/l/129AC0000000089/art-777/par-1/item-2 - suppl-5041-102/art-4/par-2: 第三号 → 民法 第七百七十七条第一項第三号 (Article 777, paragraph (1), item (iii)), art-777/par-1/item-3 — https://japanlaw.org/ja/civil-code/art-777/par-1/item-3 · https://japanlaw.org/l/129AC0000000089/art-777/par-1/item-3 - suppl-5041-102/art-4/par-2: この項 → 民法 附則第四条第二項 (Supplementary Provisions, Article 4, paragraph (2)), suppl-5041-102/art-4/par-2 — https://japanlaw.org/ja/civil-code/suppl-5041-102/art-4/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4/par-2 - suppl-5041-102/art-4/par-2: 第七百七十八条の二第一項 → 民法 第七百七十八条の二第一項 (Article 778-2, paragraph (1)), art-778-2/par-1 — https://japanlaw.org/ja/civil-code/art-778-2/par-1 · https://japanlaw.org/l/129AC0000000089/art-778-2/par-1 - suppl-5041-102/art-4/par-2: 人事訴訟法第二十七条第二項 → e-Gov law 415AC0000000109, 第二十七条第二項 (Article 27, paragraph (2)), art-27/par-2 — not held in this collection - suppl-5041-102/art-4/par-3: 新民法第七百七十四条第四項 → 民法 第七百七十四条第四項 (Article 774, paragraph (4)), art-774/par-4 — https://japanlaw.org/ja/civil-code/art-774/par-4 · https://japanlaw.org/l/129AC0000000089/art-774/par-4 - suppl-5041-102/art-4/par-3: 第五項 → 民法 第七百七十四条第五項 (Article 774, paragraph (5)), art-774/par-5 — https://japanlaw.org/ja/civil-code/art-774/par-5 · https://japanlaw.org/l/129AC0000000089/art-774/par-5 - suppl-5041-102/art-4/par-3: 第七百七十五条第一項 → 民法 第七百七十五条第一項 (Article 775, paragraph (1)), art-775/par-1 — https://japanlaw.org/ja/civil-code/art-775/par-1 · https://japanlaw.org/l/129AC0000000089/art-775/par-1 - suppl-5041-102/art-4/par-3: 第四号 → 民法 第七百七十五条第一項第四号 (Article 775, paragraph (1), item (iv)), art-775/par-1/item-4 — https://japanlaw.org/ja/civil-code/art-775/par-1/item-4 · https://japanlaw.org/l/129AC0000000089/art-775/par-1/item-4 - suppl-5041-102/art-4/par-3: 第二項 → 民法 第七百七十五条第二項 (Article 775, paragraph (2)), art-775/par-2 — https://japanlaw.org/ja/civil-code/art-775/par-2 · https://japanlaw.org/l/129AC0000000089/art-775/par-2 - suppl-5041-102/art-4/par-3: 第七百七十七条 → 民法 第七百七十七条 (Article 777), art-777 — https://japanlaw.org/ja/civil-code/art-777 · https://japanlaw.org/l/129AC0000000089/art-777 - suppl-5041-102/art-4/par-3: 第四号 → 民法 第七百七十七条第一項第四号 (Article 777, paragraph (1), item (iv)), art-777/par-1/item-4 — https://japanlaw.org/ja/civil-code/art-777/par-1/item-4 · https://japanlaw.org/l/129AC0000000089/art-777/par-1/item-4 - suppl-5041-102/art-4/par-3: 第七百七十八条 → 民法 第七百七十八条 (Article 778), art-778 — https://japanlaw.org/ja/civil-code/art-778 · https://japanlaw.org/l/129AC0000000089/art-778 - suppl-5041-102/art-4/par-3: 第七百七十八条の二第二項から第四項まで → 民法 第七百七十八条の二第二項 (Article 778-2, paragraph (2)), art-778-2/par-2 — https://japanlaw.org/ja/civil-code/art-778-2/par-2 · https://japanlaw.org/l/129AC0000000089/art-778-2/par-2 - suppl-5041-102/art-4/par-3: 第七百七十八条の二第二項から第四項まで → 民法 第七百七十八条の二第三項 (Article 778-2, paragraph (3)), art-778-2/par-3 — https://japanlaw.org/ja/civil-code/art-778-2/par-3 · https://japanlaw.org/l/129AC0000000089/art-778-2/par-3 - suppl-5041-102/art-4/par-3: 第七百七十八条の二第二項から第四項まで → 民法 第七百七十八条の二第四項 (Article 778-2, paragraph (4)), art-778-2/par-4 — https://japanlaw.org/ja/civil-code/art-778-2/par-4 · https://japanlaw.org/l/129AC0000000089/art-778-2/par-4 - suppl-5041-102/art-4/par-3: 第七百七十八条の三 → 民法 第七百七十八条の三 (Article 778-3), art-778-3 — https://japanlaw.org/ja/civil-code/art-778-3 · https://japanlaw.org/l/129AC0000000089/art-778-3 - suppl-5041-102/art-4/par-3: 第七百七十八条の四 → 民法 第七百七十八条の四 (Article 778-4), art-778-4 — https://japanlaw.org/ja/civil-code/art-778-4 · https://japanlaw.org/l/129AC0000000089/art-778-4 ## Cited by 1 provision cites this one. No official source publishes this direction. - 民法 附則第四条第二項（嫡出の否認及び嫡出の承認に関する経過措置） — https://japanlaw.org/ja/civil-code/suppl-5041-102/art-4/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-5041-102/art-4/par-2 --- ## 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