# 民事訴訟法 / Code of Civil Procedure — 第三条 (Supplementary Provisions, Article 3)

- Law: 民事訴訟法 (Code of Civil Procedure), 平成八年法律第百九号
- English title "Code of Civil Procedure": 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: 第三条 (Supplementary Provisions, Article 3)（経過措置の原則） — address `suppl-4081-109/art-3`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/code-of-civil-procedure/suppl-4081-109/art-3
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/408AC0000000109/suppl-4081-109/art-3
- 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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### 第三条（経過措置の原則） — Principles of Transitional Measures
<sup>caption: machine translation, not official</sup>
<sup>suppl-4081-109/art-3 · https://japanlaw.org/ja/code-of-civil-procedure/suppl-4081-109/art-3 · https://japanlaw.org/l/408AC0000000109/suppl-4081-109/art-3</sup>

**第一項**  新法の規定（罰則を除く。）は、この附則に特別の定めがある場合を除き、新法の施行前に生じた事項にも適用する。ただし、前条の規定による改正前の民事訴訟法（以下「旧法」という。）の規定により生じた効力を妨げない。
<sup>suppl-4081-109/art-3/par-1 · https://japanlaw.org/ja/code-of-civil-procedure/suppl-4081-109/art-3/par-1 · https://japanlaw.org/l/408AC0000000109/suppl-4081-109/art-3/par-1</sup>
The provisions of the New Act (excluding penal provisions) also apply to matters that arose before the New Act comes into effect, except as otherwise specifically provided for in these Supplementary Provisions; provided, however, that this does not preclude the effect that arose under the provisions of the Code of Civil Procedure prior to its amendment by the provisions of the preceding Article (referred to below as the "Former Act").
<sup>machine translation, not official</sup>

## Cited by

1 provision cites this one. No official source publishes this direction.

- 民事訴訟法 附則第二十六条第一項（最高裁判所規則への委任） — https://japanlaw.org/ja/code-of-civil-procedure/suppl-4081-109/art-26/par-1 · https://japanlaw.org/l/408AC0000000109/suppl-4081-109/art-26/par-1

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 民事訴訟法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/408AC0000000109/20260624_508AC0000000046), retrieved 2026-10-17
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Code of Civil Procedure — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4797/tb), retrieved 2026-10-17
- claude-sonnet-5-5 — Machine translation, batch code-of-civil-procedure-20261017T235501-001, translated 2026-10-18
- claude-sonnet-5-5, corrected on review by claude-opus-5-5 — Machine translation corrected on review, batch code-of-civil-procedure-20261017T235501-001, translated 2026-10-18
- This site's parser, version 209 — 民事訴訟法 — structure, counts, cross-references and defined terms, computed 2026-10-17
