# Article 18, paragraph (2), its wordings — Arbitration Act

This is the Markdown twin of https://japanlaw.org/en/arbitration-act/history/art-18/par-2. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp.

How the wording of Article 18, paragraph (2) (第十八条第二項) changed with each amendment, and how it will change.

- Law: Arbitration Act (仲裁法) — https://japanlaw.org/en/arbitration-act
- Provision: Article 18, paragraph (2) (第十八条第二項) — https://japanlaw.org/en/arbitration-act/art-18/par-2 (as Markdown: https://japanlaw.org/md/en/arbitration-act/art-18/par-2)
- The law's amendments: https://japanlaw.org/en/arbitration-act/amendments
- 2 wordings, oldest first.

## 1. Before Act No. 53 of 2023

- State: In force

Japanese:

> 仲裁人を選任し、又は当該仲裁人の選任について推薦その他これに類する関与をした当事者は、当該選任後に知った事由を忌避の原因とする場合に限り、当該仲裁人を忌避することができる。

English (Japanese Law Translation, Ministry of Justice):

> A party that has appointed an arbitrator or that has made a recommendation for appointment or otherwise similarly participated in the appointment of the arbitrator may challenge that arbitrator only if they do so on grounds that they become aware of after the appointment.

## 2. By 13 June 2028 — Act No. 53 of 2023

- State: Not yet in force
- Takes effect: By 13 June 2028
- The amendment: Moved to Article 20, paragraph (2); its words stay the same (Act No. 53 of 2023) — https://japanlaw.org/en/arbitration-act/amendments/20280613_505AC0000000053

Japanese:

> 仲裁人を選任し、又は当該仲裁人の選任について推薦その他これに類する関与をした当事者は、当該選任後に知った事由を忌避の原因とする場合に限り、当該仲裁人を忌避することができる。

English (Japanese Law Translation, Ministry of Justice):

> A party that has appointed an arbitrator or that has made a recommendation for appointment or otherwise similarly participated in the appointment of the arbitrator may challenge that arbitrator only if they do so on grounds that they become aware of after the appointment.

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## Sources

- The dates and the amending laws: e-Gov (Digital Agency) (https://laws.e-gov.go.jp/law/415AC0000000138)
- English name of the law: Japanese Law Translation, Ministry of Justice (https://www.japaneselawtranslation.go.jp/en/laws/view/4440/tb)
- English titles of the amending laws: Written for this site with AI
- The Japanese text before: e-Gov (Digital Agency) (https://laws.e-gov.go.jp/law/415AC0000000138/20260521_504AC0000000048)
- The Japanese text after: e-Gov (Digital Agency) (https://laws.e-gov.go.jp/law/415AC0000000138/20280613_505AC0000000053)