# 家事事件手続法 / Domestic Relations Case Procedure Act — 第百七十七条 (Article 177)

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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: 第百七十七条 (Article 177)（手続行為能力） — address `art-177`
- 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-177
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/423AC0000000052/art-177
- 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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### 第百七十七条（手続行為能力） — (Capacity to Participate in Proceedings)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-177 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177 · https://japanlaw.org/l/423AC0000000052/art-177</sup>

    **第一項**  第百十八条の規定は、次に掲げる審判事件（第三号及び第五号の審判事件を本案とする保全処分についての審判事件を含む。）における未成年被後見人（第一号の審判事件にあっては、未成年被後見人となるべき者及び養親）について準用する。
    <sup>art-177/par-1 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1 · https://japanlaw.org/l/423AC0000000052/art-177/par-1</sup>
    The provisions of Article 118 apply mutatis mutandis to a minor ward in the following adjudication cases (including adjudication cases for a provisional order sought by designating the adjudication cases set forth in items (iii) and (v) as cases on the merits) (in the adjudication case set forth in item (i), the person who is to be a minor ward and adoptive parents):
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **一**  養子の離縁後に未成年後見人となるべき者の選任の審判事件
      <sup>art-177/par-1/item-1 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-1 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-1</sup>
      an adjudication case for the appointment of a person who is to be a guardian of a minor after the dissolution of an adoptive relationship;
      <sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "a ruling of the appointment of a person who is to be a guardian of a minor after the dissolution of an adoptive relationship;" — https://www.japaneselawtranslation.go.jp/en/laws/view/4512/tb</sup>

      **二**  未成年後見人の選任の審判事件
      <sup>art-177/par-1/item-2 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-2 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-2</sup>
      an adjudication case for the appointment of a guardian of a minor;
      <sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "a ruling of the appointment of a guardian of a minor;" — https://www.japaneselawtranslation.go.jp/en/laws/view/4512/tb</sup>

      **三**  未成年後見人の解任の審判事件（別表第一の七十三の項の事項についての審判事件をいう。第百八十一条において同じ。）
      <sup>art-177/par-1/item-3 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-3 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-3</sup>
      an adjudication case for the dismissal of a guardian of a minor (meaning an adjudication case regarding the matters set forth in Appended Table 1, row (73); the same applies in Article 181);
      <sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "a ruling of the dismissal of a guardian of a minor (meaning an adjudication case regarding the matters set forth in Appended Table 1, row (73); the same applies in Article 181);" — https://www.japaneselawtranslation.go.jp/en/laws/view/4512/tb</sup>

      **四**  未成年後見監督人の選任の審判事件（別表第一の七十四の項の事項についての審判事件をいう。）
      <sup>art-177/par-1/item-4 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-4 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-4</sup>
      an adjudication case for the appointment of a supervisor of a guardian of a minor (meaning an adjudication case regarding the matters set forth in Appended Table 1, row (74));
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **五**  未成年後見監督人の解任の審判事件（別表第一の七十六の項の事項についての審判事件をいう。第百八十一条において同じ。）
      <sup>art-177/par-1/item-5 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-5 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-5</sup>
      an adjudication case for the dismissal of a supervisor of a guardian of a minor (meaning an adjudication case regarding the matters set forth in Appended Table 1, row (76); the same applies in Article 181);
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **六**  未成年被後見人に関する特別代理人の選任の審判事件（別表第一の七十九の項の事項についての審判事件をいう。）
      <sup>art-177/par-1/item-6 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-6 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-6</sup>
      an adjudication case for the appointment of a special representative for a minor ward (meaning an adjudication case regarding the matters set forth in Appended Table 1, row (79));
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **七**  未成年後見の事務の監督の審判事件（別表第一の八十一の項の事項についての審判事件をいう。）
      <sup>art-177/par-1/item-7 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-7 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-7</sup>
      an adjudication case for the supervision of the affairs of the guardianship of a minor (meaning an adjudication case regarding the matters set forth in Appended Table 1, row (81)); and
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

      **八**  第三者が未成年被後見人に与えた財産の管理に関する処分の審判事件（別表第一の八十二の項の事項についての審判事件をいう。第百八十条において同じ。）
      <sup>art-177/par-1/item-8 · https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-8 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-8</sup>
      an adjudication case for a disposition regarding the administration of property offered to a minor ward by a third party (meaning an adjudication case regarding the matters set forth in Appended Table 1, row (82); the same applies in Article 180).
      <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-177/par-1: 第百十八条 → 家事事件手続法 第百十八条 (Article 118), art-118 — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-118 · https://japanlaw.org/l/423AC0000000052/art-118
- art-177/par-1: 第三号 → 家事事件手続法 第百七十七条第一項第三号 (Article 177, paragraph (1), item (iii)), art-177/par-1/item-3 — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-3 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-3
- art-177/par-1: 第五号 → 家事事件手続法 第百七十七条第一項第五号 (Article 177, paragraph (1), item (v)), art-177/par-1/item-5 — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-5 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-5
- art-177/par-1: 第一号 → 家事事件手続法 第百七十七条第一項第一号 (Article 177, paragraph (1), item (i)), art-177/par-1/item-1 — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1/item-1 · https://japanlaw.org/l/423AC0000000052/art-177/par-1/item-1
- art-177/par-1/item-3: 第百八十一条 → 家事事件手続法 第百八十一条 (Article 181), art-181 — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-181 · https://japanlaw.org/l/423AC0000000052/art-181
- art-177/par-1/item-5: 第百八十一条 → 家事事件手続法 第百八十一条 (Article 181), art-181 — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-181 · https://japanlaw.org/l/423AC0000000052/art-181
- art-177/par-1/item-8: 第百八十条 → 家事事件手続法 第百八十条 (Article 180), art-180 — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-180 · https://japanlaw.org/l/423AC0000000052/art-180

## Cited by

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

- 家事事件手続法 第三条の九第一項（養子の離縁後に未成年後見人となるべき者の選任の審判事件等の管轄権） — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-3-9/par-1 · https://japanlaw.org/l/423AC0000000052/art-3-9/par-1
- 家事事件手続法 第百七十七条第一項（手続行為能力） — https://japanlaw.org/ja/domestic-relations-case-procedure-act/art-177/par-1 · https://japanlaw.org/l/423AC0000000052/art-177/par-1

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## Sources

- claude-opus-5-5 — Corrections to the Ministry of Justice's English of paragraphs, written 2026-11-05
- 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 (家事事件手続法), Article 177, paragraph (1), item (i) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/4512/tb), retrieved 2026-11-05
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Domestic Relations Case Procedure Act (家事事件手続法), Article 177, paragraph (1), item (ii) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/4512/tb), retrieved 2026-11-05
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Domestic Relations Case Procedure Act (家事事件手続法), Article 177, paragraph (1), item (iii) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/4512/tb), 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
