# 家事事件手続法 / Domestic Relations Case Procedure Act — 第六十三条 (Article 63)

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- Law: 家事事件手続法 (Domestic Relations Case Procedure Act), 平成二十三年法律第五十二号
- English title "Domestic Relations Case Procedure Act": 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: 第六十三条 (Article 63)（事実の調査の通知） — address `art-63`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-63
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/423AC0000000052/art-63
- 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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### 第六十三条（事実の調査の通知） — (Notice of Investigation of Facts)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-63 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-63 · https://japanlaw.org/l/423AC0000000052/art-63</sup>

      **第一項**  家庭裁判所は、事実の調査をした場合において、その結果が当事者による家事審判の手続の追行に重要な変更を生じ得るものと認めるときは、これを当事者及び利害関係参加人に通知しなければならない。
      <sup>art-63/par-1 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-63/par-1 · https://japanlaw.org/l/423AC0000000052/art-63/par-1</sup>
      When an investigation of facts is conducted and a family court finds that the results thereof could cause a material change to a party's engagement in conducting proceedings for adjudication of domestic relations, the family court must give notice to that effect to the party and an interested party intervenor.
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 家事事件手続法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/423AC0000000052/20260624_508AC0000000045), retrieved 2026-11-05
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Domestic Relations Case Procedure Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4512/tb), retrieved 2026-11-05
- This site's parser, version 225 — 家事事件手続法 — structure, counts, cross-references and defined terms, computed 2026-11-05