# 民法 / Civil Code — 附　則 (Supplementary Provisions)

- 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: 附　則 (Supplementary Provisions) — address `suppl-4161-147`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/suppl-4161-147
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/suppl-4161-147
- 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.

---

## 附　則 平成一六年一二月一日法律第一四七号
<sup>suppl-4161-147 · https://japanlaw.org/ja/civil-code/suppl-4161-147 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147</sup>

### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-4161-147/art-1 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-1</sup>

**第一項**  この法律は、公布の日から起算して六月を超えない範囲内において政令で定める日から施行する。
<sup>suppl-4161-147/art-1/par-1 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-1/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-1/par-1</sup>
This Act comes into effect as of the day specified by Cabinet Order within a period not exceeding six months from the date of promulgation.
<sup>machine translation, not official</sup>

### 第二条（経過措置の原則） — Principles of Transitional Measures
<sup>caption: machine translation, not official</sup>
<sup>suppl-4161-147/art-2 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-2 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-2</sup>

**第一項**  この法律による改正後の民法（以下「新法」という。）の規定は、次条及び附則第四条（第三項及び第五項を除く。）の規定による場合を除き、この法律の施行前に生じた事項にも適用する。ただし、この法律による改正前の民法の規定によって生じた効力を妨げない。
<sup>suppl-4161-147/art-2/par-1 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-2/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-2/par-1</sup>
The provisions of the Civil Code as amended by this Act (hereinafter referred to as the "New Act") also apply to matters that arose before this Act comes into effect, except in the cases provided for in the following Article and Article 4 of the Supplementary Provisions (excluding paragraphs (3) and (5)); provided, however, that this does not preclude the effect that arose under the provisions of the Civil Code before amendment by this Act.
<sup>machine translation, not official</sup>

### 第三条（保証契約の方式に関する経過措置） — Transitional Measures Concerning the Form of Guarantee Contracts
<sup>caption: machine translation, not official</sup>
<sup>suppl-4161-147/art-3 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-3 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-3</sup>

**第一項**  新法第四百四十六条第二項及び第三項の規定は、この法律の施行前に締結された保証契約については、適用しない。
<sup>suppl-4161-147/art-3/par-1 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-3/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-3/par-1</sup>
The provisions of Article 446, paragraphs (2) and (3) of the New Act do not apply to a guarantee contract concluded before this Act comes into effect.
<sup>machine translation, not official</sup>

### 第四条（貸金等根保証契約に関する経過措置） — Transitional Measures Concerning Contracts for Revolving Guarantee for Loans
<sup>caption: machine translation, not official</sup>
<sup>suppl-4161-147/art-4 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4</sup>

**第一項**  新法第四百六十五条の二及び第四百六十五条の三（第二項を除く。）の規定は、この法律の施行前に締結された貸金等根保証契約（新法第四百六十五条の二第一項に規定する貸金等根保証契約をいう。以下同じ。）については、適用しない。
<sup>suppl-4161-147/art-4/par-1 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-1</sup>
The provisions of Article 465-2 and Article 465-3 (excluding paragraph (2)) of the New Act do not apply to a contract for revolving guarantee for loans concluded before this Act comes into effect (meaning a contract for revolving guarantee for loans prescribed in Article 465-2, paragraph (1) of the New Act; the same applies hereinafter).
<sup>machine translation, not official</sup>

**第二項**  この法律の施行前に締結された貸金等根保証契約であって元本確定期日（新法第四百六十五条の三第一項に規定する元本確定期日をいう。以下同じ。）の定めがあるもののうち次の各号に掲げるものの元本確定期日は、その定めにかかわらず、それぞれ当該各号に定める日とする。
<sup>suppl-4161-147/art-4/par-2 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-2 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-2</sup>
Of the contracts for revolving guarantee for loans concluded before this Act comes into effect that provide for a principal fixed date (meaning the principal fixed date prescribed in Article 465-3, paragraph (1) of the New Act; the same applies hereinafter), for those listed in the following items, the principal fixed date is, notwithstanding that provision, the day specified in the relevant item.
<sup>machine translation, not official</sup>

  **一**  新法第四百六十五条の二第一項に規定する極度額（以下この条において単に「極度額」という。）の定めがない貸金等根保証契約であって、その元本確定期日がその定めによりこの法律の施行の日（以下この条において「施行日」という。）から起算して三年を経過する日より後の日と定められているもの　施行日から起算して三年を経過する日
  <sup>suppl-4161-147/art-4/par-2/item-1 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-2/item-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-2/item-1</sup>
  a contract for revolving guarantee for loans that does not provide for the maximum amount prescribed in Article 465-2, paragraph (1) of the New Act (hereinafter referred to in this Article simply as the "maximum amount"), and whose principal fixed date is provided by that provision to be a day later than the day on which three years have elapsed from the day this Act comes into effect (hereinafter referred to in this Article as the "Effective Date"): the day on which three years have elapsed from the Effective Date;
  <sup>machine translation, not official</sup>

  **二**  極度額の定めがある貸金等根保証契約であって、その元本確定期日がその定めにより施行日から起算して五年を経過する日より後の日と定められているもの　施行日から起算して五年を経過する日
  <sup>suppl-4161-147/art-4/par-2/item-2 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-2/item-2 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-2/item-2</sup>
  a contract for revolving guarantee for loans that provides for a maximum amount, and whose principal fixed date is provided by that provision to be a day later than the day on which five years have elapsed from the Effective Date: the day on which five years have elapsed from the Effective Date.
  <sup>machine translation, not official</sup>

**第三項**  この法律の施行前に締結された貸金等根保証契約であって元本確定期日の定めがないものについての新法第四百六十五条の三第二項の規定の適用については、同項中「元本確定期日の定めがない場合（前項の規定により元本確定期日の定めがその効力を生じない場合を含む。）」とあるのは「元本確定期日の定めがない場合」と、「その貸金等根保証契約の締結の日から三年」とあるのは「この法律の施行の日から起算して三年」とする。
<sup>suppl-4161-147/art-4/par-3 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-3</sup>
With respect to the application of Article 465-3, paragraph (2) of the New Act to a contract for revolving guarantee for loans concluded before this Act comes into effect that does not provide for a principal fixed date, in that paragraph the phrase "does not provide for a principal fixed date (or if the provisions concerning the principal fixed date do not become effective pursuant to the provisions of the preceding paragraph)" is deemed to be replaced with "does not provide for a principal fixed date", and the phrase "three years have passed from the day of the conclusion of the contract for revolving guarantee for loans" is deemed to be replaced with "three years have passed from the day this Act comes into effect".
<sup>machine translation, not official</sup>

**第四項**  施行日以後にこの法律の施行前に締結された貸金等根保証契約における元本確定期日の変更をする場合において、変更後の元本確定期日が変更前の元本確定期日より後の日となるときは、その元本確定期日の変更は、その効力を生じない。
<sup>suppl-4161-147/art-4/par-4 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-4 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-4</sup>
In the case where, on or after the Effective Date, a change is made to the principal fixed date in a contract for revolving guarantee for loans concluded before this Act comes into effect, and the principal fixed date as changed falls on a day later than the original principal fixed date, that change of the principal fixed date does not become effective.
<sup>machine translation, not official</sup>

**第五項**  この法律の施行前に新法第四百六十五条の四各号に掲げる場合に該当する事由が生じた貸金等根保証契約であって、その主たる債務の元本が確定していないものについては、施行日にその事由が生じたものとみなして、同条の規定を適用する。
<sup>suppl-4161-147/art-4/par-5 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-5 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-5</sup>
With respect to a contract for revolving guarantee for loans for which, before this Act comes into effect, a cause falling under a case listed in the items of Article 465-4 of the New Act arose, and for which the principal of the principal obligation has not been fixed, that Article applies on the basis that the cause arose on the Effective Date.
<sup>machine translation, not official</sup>

**第六項**  この法律の施行前に締結された新法第四百六十五条の五に規定する保証契約については、同条の規定は、適用しない。
<sup>suppl-4161-147/art-4/par-6 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-6 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-6</sup>
The provisions of Article 465-5 of the New Act do not apply to a guarantee contract prescribed in that Article that was concluded before this Act comes into effect.
<sup>machine translation, not official</sup>

**第七項**  前項の保証契約の保証人は、新法第四百六十五条の五に規定する根保証契約の保証人の主たる債務者に対する求償権に係る当該主たる債務者の債務について、次の各号に掲げる区分に応じ、その元本確定期日がそれぞれ当該各号に定める日より後の日である場合においては、その元本確定期日がそれぞれ当該各号に定める日であるとしたならば当該主たる債務者が負担すべきこととなる額を限度として、その履行をする責任を負う。
<sup>suppl-4161-147/art-4/par-7 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-7 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-7</sup>
The guarantor under the guarantee contract referred to in the preceding paragraph bears liability to perform, with respect to the obligation of the principal obligor pertaining to the right to reimbursement held by the guarantor of the contract for revolving guarantee prescribed in Article 465-5 of the New Act against that principal obligor, in the case where, according to the categories listed in the following items, the principal fixed date of that contract is later than the day specified in the respective item, up to the amount that that principal obligor would be liable to bear if the principal fixed date were the day specified in the respective item:
<sup>machine translation, not official</sup>

  **一**  当該根保証契約において極度額の定めがない場合　施行日から起算して三年を経過する日
  <sup>suppl-4161-147/art-4/par-7/item-1 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-7/item-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-7/item-1</sup>
  if that contract for revolving guarantee does not provide for a maximum amount: the day on which three years have elapsed from the Effective Date;
  <sup>machine translation, not official</sup>

  **二**  当該根保証契約において極度額の定めがある場合　施行日から起算して五年を経過する日
  <sup>suppl-4161-147/art-4/par-7/item-2 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-7/item-2 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-7/item-2</sup>
  if that contract for revolving guarantee provides for a maximum amount: the day on which five years have elapsed from the Effective Date.
  <sup>machine translation, not official</sup>

**第八項**  第六項の保証契約の保証人は、前項の根保証契約において元本確定期日の定めがない場合には、同項各号に掲げる区分に応じ、その元本確定期日がそれぞれ当該各号に定める日であるとしたならば同項の主たる債務者が負担すべきこととなる額を限度として、その履行をする責任を負う。
<sup>suppl-4161-147/art-4/par-8 · https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-8 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-8</sup>
The guarantor under the guarantee contract referred to in paragraph (6) bears liability to perform, if the contract for revolving guarantee referred to in the preceding paragraph does not provide for a principal fixed date, according to the categories listed in the items of that paragraph, up to the amount that the principal obligor referred to in that paragraph would be liable to bear if the principal fixed date were the day specified in the respective item.
<sup>machine translation, not official</sup>

---

## Cites
- suppl-4161-147/art-2/par-1: 次条 → 民法 附則第三条 (Supplementary Provisions, Article 3), suppl-4161-147/art-3 — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-3 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-3
- suppl-4161-147/art-2/par-1: 附則第四条 → 民法 附則第四条 (Supplementary Provisions, Article 4), suppl-4161-147/art-4 — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4
- suppl-4161-147/art-2/par-1: 第三項 → 民法 附則第四条第三項 (Supplementary Provisions, Article 4, paragraph (3)), suppl-4161-147/art-4/par-3 — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-3
- suppl-4161-147/art-2/par-1: 第五項 → 民法 附則第四条第五項 (Supplementary Provisions, Article 4, paragraph (5)), suppl-4161-147/art-4/par-5 — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-5 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-5
- suppl-4161-147/art-3/par-1: 新法第四百四十六条第二項 → 民法 第四百四十六条第二項 (Article 446, paragraph (2)), art-446/par-2 — https://japanlaw.org/ja/civil-code/art-446/par-2 · https://japanlaw.org/l/129AC0000000089/art-446/par-2
- suppl-4161-147/art-3/par-1: 第三項 → 民法 第四百四十六条第三項 (Article 446, paragraph (3)), art-446/par-3 — https://japanlaw.org/ja/civil-code/art-446/par-3 · https://japanlaw.org/l/129AC0000000089/art-446/par-3
- suppl-4161-147/art-4/par-1: 新法第四百六十五条の二 → 民法 第四百六十五条の二 (Article 465-2), art-465-2 — https://japanlaw.org/ja/civil-code/art-465-2 · https://japanlaw.org/l/129AC0000000089/art-465-2
- suppl-4161-147/art-4/par-1: 第四百六十五条の三 → 民法 第四百六十五条の三 (Article 465-3), art-465-3 — https://japanlaw.org/ja/civil-code/art-465-3 · https://japanlaw.org/l/129AC0000000089/art-465-3
- suppl-4161-147/art-4/par-1: 第二項 → 民法 第四百六十五条の三第二項 (Article 465-3, paragraph (2)), art-465-3/par-2 — https://japanlaw.org/ja/civil-code/art-465-3/par-2 · https://japanlaw.org/l/129AC0000000089/art-465-3/par-2
- suppl-4161-147/art-4/par-1: 新法第四百六十五条の二第一項 → 民法 第四百六十五条の二第一項 (Article 465-2, paragraph (1)), art-465-2/par-1 — https://japanlaw.org/ja/civil-code/art-465-2/par-1 · https://japanlaw.org/l/129AC0000000089/art-465-2/par-1
- suppl-4161-147/art-4/par-2: 新法第四百六十五条の三第一項 → 民法 第四百六十五条の三第一項 (Article 465-3, paragraph (1)), art-465-3/par-1 — https://japanlaw.org/ja/civil-code/art-465-3/par-1 · https://japanlaw.org/l/129AC0000000089/art-465-3/par-1
- suppl-4161-147/art-4/par-2/item-1: 新法第四百六十五条の二第一項 → 民法 第四百六十五条の二第一項 (Article 465-2, paragraph (1)), art-465-2/par-1 — https://japanlaw.org/ja/civil-code/art-465-2/par-1 · https://japanlaw.org/l/129AC0000000089/art-465-2/par-1
- suppl-4161-147/art-4/par-2/item-1: この条 → 民法 附則第四条 (Supplementary Provisions, Article 4), suppl-4161-147/art-4 — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4
- suppl-4161-147/art-4/par-3: 新法第四百六十五条の三第二項 → 民法 第四百六十五条の三第二項 (Article 465-3, paragraph (2)), art-465-3/par-2 — https://japanlaw.org/ja/civil-code/art-465-3/par-2 · https://japanlaw.org/l/129AC0000000089/art-465-3/par-2
- suppl-4161-147/art-4/par-3: 前項 → 民法 第四百六十五条の三第一項 (Article 465-3, paragraph (1)), art-465-3/par-1 — https://japanlaw.org/ja/civil-code/art-465-3/par-1 · https://japanlaw.org/l/129AC0000000089/art-465-3/par-1
- suppl-4161-147/art-4/par-5: 新法第四百六十五条の四 → 民法 第四百六十五条の四 (Article 465-4), art-465-4 — https://japanlaw.org/ja/civil-code/art-465-4 · https://japanlaw.org/l/129AC0000000089/art-465-4
- suppl-4161-147/art-4/par-6: 新法第四百六十五条の五 → 民法 第四百六十五条の五 (Article 465-5), art-465-5 — https://japanlaw.org/ja/civil-code/art-465-5 · https://japanlaw.org/l/129AC0000000089/art-465-5
- suppl-4161-147/art-4/par-7: 前項 → 民法 附則第四条第六項 (Supplementary Provisions, Article 4, paragraph (6)), suppl-4161-147/art-4/par-6 — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-6 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-6
- suppl-4161-147/art-4/par-7: 新法第四百六十五条の五 → 民法 第四百六十五条の五 (Article 465-5), art-465-5 — https://japanlaw.org/ja/civil-code/art-465-5 · https://japanlaw.org/l/129AC0000000089/art-465-5
- suppl-4161-147/art-4/par-8: 第六項 → 民法 附則第四条第六項 (Supplementary Provisions, Article 4, paragraph (6)), suppl-4161-147/art-4/par-6 — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-6 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-6
- suppl-4161-147/art-4/par-8: 前項 → 民法 附則第四条第七項 (Supplementary Provisions, Article 4, paragraph (7)), suppl-4161-147/art-4/par-7 — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-7 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-7

## Cited by

4 provisions cite this one. No official source publishes this direction.

- 民法 附則第二条第一項（経過措置の原則） — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-2/par-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-2/par-1
- 民法 附則第四条第二項第一号（貸金等根保証契約に関する経過措置） — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-2/item-1 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-2/item-1
- 民法 附則第四条第七項（貸金等根保証契約に関する経過措置） — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-7 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-7
- 民法 附則第四条第八項（貸金等根保証契約に関する経過措置） — https://japanlaw.org/ja/civil-code/suppl-4161-147/art-4/par-8 · https://japanlaw.org/l/129AC0000000089/suppl-4161-147/art-4/par-8

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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-20261011T170941-018, translated 2026-10-12
- This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11
