# 民事訴訟法 / Code of Civil Procedure — 第五十二条 (Article 52) - 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: 第五十二条 (Article 52)（共同訴訟参加） — address `art-52` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/ja/code-of-civil-procedure/art-52 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/408AC0000000109/art-52 - 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. --- ### 第五十二条（共同訴訟参加） — (Intervention as a Co-Litigant) caption: Ministry of Justice translation — Japanese Law Translation Database System art-52 · https://japanlaw.org/ja/code-of-civil-procedure/art-52 · https://japanlaw.org/l/408AC0000000109/art-52 **第一項** 訴訟の目的が当事者の一方及び第三者について合一にのみ確定すべき場合には、その第三者は、共同訴訟人としてその訴訟に参加することができる。 art-52/par-1 · https://japanlaw.org/ja/code-of-civil-procedure/art-52/par-1 · https://japanlaw.org/l/408AC0000000109/art-52/par-1 If the subject matter of litigation is to be determined for one of the original parties and a third party only as a unified matter, the third party may intervene in the litigation as a co-litigant. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 第四十三条並びに第四十七条第二項及び第三項の規定は、前項の規定による参加の申出について準用する。 art-52/par-2 · https://japanlaw.org/ja/code-of-civil-procedure/art-52/par-2 · https://japanlaw.org/l/408AC0000000109/art-52/par-2 The provisions of Article 43 and Article 47, paragraphs (2) and (3) apply mutatis mutandis to an application for intervention under the provisions of the preceding paragraph. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-52/par-2: 第四十三条 → 民事訴訟法 第四十三条 (Article 43), art-43 — https://japanlaw.org/ja/code-of-civil-procedure/art-43 · https://japanlaw.org/l/408AC0000000109/art-43 - art-52/par-2: 第四十七条第二項 → 民事訴訟法 第四十七条第二項 (Article 47, paragraph (2)), art-47/par-2 — https://japanlaw.org/ja/code-of-civil-procedure/art-47/par-2 · https://japanlaw.org/l/408AC0000000109/art-47/par-2 - art-52/par-2: 第三項 → 民事訴訟法 第四十七条第三項 (Article 47, paragraph (3)), art-47/par-3 — https://japanlaw.org/ja/code-of-civil-procedure/art-47/par-3 · https://japanlaw.org/l/408AC0000000109/art-47/par-3 - art-52/par-2: 前項 → 民事訴訟法 第五十二条第一項 (Article 52, paragraph (1)), art-52/par-1 — https://japanlaw.org/ja/code-of-civil-procedure/art-52/par-1 · https://japanlaw.org/l/408AC0000000109/art-52/par-1 ## Cited by 1 provision cites this one. No official source publishes this direction. - 民事訴訟法 第五十二条第二項（共同訴訟参加） — https://japanlaw.org/ja/code-of-civil-procedure/art-52/par-2 · https://japanlaw.org/l/408AC0000000109/art-52/par-2 --- ## 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 - This site's parser, version 209 — 民事訴訟法 — structure, counts, cross-references and defined terms, computed 2026-10-17