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Domestic Relations Case Procedure Act

家事事件手続法(かじじけんてつづきほう)

Chapter I General Provisions (Articles 254-2 to 257)

The law as Act Partially Amending the Civil Code, etc. (Act No. 45 of 2026) leaves it, with the words it changes marked.

The main text is read a page at a time: a chapter to a page, and a long chapter in runs of articles. The whole main text, and the supplementary provisions and appended tables this amendment changes. Those it leaves untouched are on the page for the text in force.

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Article 254-2第二百五十四条の二

Inspection, etc. of an Electronic or Magnetic Record of a Case for Mediation of Domestic Relations(電磁的家事調停事件記録の閲覧等)
Article 254-2, paragraph (1)

A party or a third party who has made a prima facie showing of interest may, with permission from the family court, make a request to a court clerk, as provided by the Rules of the Supreme Court, for the inspection of the contents of an electronic or magnetic record of a case for mediation of domestic relations (meaning the part of the record of a case for mediation of domestic relations that relates to matters recorded in a file pursuant to the provisions of this Act or other laws and regulations; the same applies hereinafter in this Article) displayed by the method specified by the Rules of the Supreme Court.

当事者又は利害関係を疎明した第三者は、家庭裁判所の許可を得て、裁判所書記官に対し、最高裁判所規則で定めるところにより、電磁的家事調停事件記録(家事調停事件の記録中この法律その他の法令の規定によりファイルに記録された事項に係る部分をいう。以下この条において同じ。)の内容を最高裁判所規則で定める方法により表示したものの閲覧を請求することができる。

Article 254-2, paragraph (2)

A party or a third party who has made a prima facie showing of interest may, with permission from the family court, make a request to a court clerk for the copying of the matters recorded in an electronic or magnetic record of a case for mediation of domestic relations, as provided by the Rules of the Supreme Court, by a method of recording them in a file kept on the computer used by that person using the Electronic Data Processing System specified by the Rules of the Supreme Court, or by any other method specified by the Rules of the Supreme Court.

当事者又は利害関係を疎明した第三者は、家庭裁判所の許可を得て、裁判所書記官に対し、電磁的家事調停事件記録に記録されている事項について、最高裁判所規則で定めるところにより、最高裁判所規則で定める電子情報処理組織を使用してその者の使用に係る電子計算機に備えられたファイルに記録する方法その他の最高裁判所規則で定める方法による複写を請求することができる。

Article 254-2, paragraph (3)

A party or a third party who has made a prima facie showing of interest may, with permission from the family court, make a request to a court clerk, as provided by the Rules of the Supreme Court, for the issuance of a paper document stating all or part of the matters recorded in an electronic or magnetic record of a case for mediation of domestic relations, for which the court clerk has certified, by the method specified by the Rules of the Supreme Court, that the contents of the paper document are identical to the matters recorded in the electronic or magnetic record of a case for mediation of domestic relations, or for the provision of an electronic or magnetic record recording all or part of those matters, for which the court clerk has certified, by the method specified by the Rules of the Supreme Court, that the contents of the electronic or magnetic record are identical to the matters recorded in the electronic or magnetic record of a case for mediation of domestic relations, by a method of recording it in a file kept on the computer used by that person using the Electronic Data Processing System specified by the Rules of the Supreme Court, or by any other method specified by the Rules of the Supreme Court.

当事者又は利害関係を疎明した第三者は、家庭裁判所の許可を得て、裁判所書記官に対し、最高裁判所規則で定めるところにより、電磁的家事調停事件記録に記録されている事項の全部若しくは一部を記載した書面であって裁判所書記官が最高裁判所規則で定める方法により当該書面の内容が電磁的家事調停記録に記録されている事項と同一であることを証明したものを交付し、又は当該事項の全部若しくは一部を記録した電磁的記録であって裁判所書記官が最高裁判所規則で定める方法により当該電磁的記録の内容が電磁的家事調停事件記録に記録されている事項と同一であることを証明したものを最高裁判所規則で定める電子情報処理組織を使用してその者の使用に係る電子計算機に備えられたファイルに記録する方法その他の最高裁判所規則で定める方法により提供することを請求することができる。

Article 254-2, paragraph (4)

With regard to the part of an electronic or magnetic record of a case for mediation of domestic relations that relates to the following matters, a party may, notwithstanding the provisions of the preceding three paragraphs, make a request to a court clerk, without permission from the family court, for the inspection, etc. of an electronic or magnetic record of a case for mediation of domestic relations (meaning the inspection under the provisions of paragraph (1), the copying under the provisions of paragraph (2), or the issuance of a paper document or the provision of an electronic or magnetic record under the provisions of the preceding paragraph; the same applies in the following paragraph and paragraph (6)):

電磁的家事調停事件記録中次に掲げる事項に係る部分については、当事者は、前三項の規定にかかわらず、家庭裁判所の許可を得ないで、裁判所書記官に対し、電磁的家事調停事件記録の閲覧等(第一項の規定による閲覧、第二項の規定による複写又は前項の規定による書面の交付若しくは電磁的記録の提供をいう。次項及び第六項において同じ。)を請求することができる。

Article 254-2, paragraph (4), item (i)

the matters recorded in an electronic written ruling prescribed in Article 76, paragraph (1) as applied mutatis mutandis pursuant to Article 258, paragraph (1) (limited to one recorded in a file pursuant to the provisions of Article 76, paragraph (3)) or in an electronic written order (meaning an electronic or magnetic record prepared pursuant to the provisions of Article 76, paragraphs (2) and (3) as applied mutatis mutandis pursuant to Article 81, paragraph (1) as applied mutatis mutandis pursuant to Article 258, paragraph (1) and recorded in a file; the same applies in Article 269, paragraph (2));

第二百五十八条第一項において準用する第七十六条第一項に規定する電子審判書(同条第三項の規定によりファイルに記録されたものに限る。)又は電子決定書(第二百五十八条第一項において準用する第八十一条第一項において準用する第七十六条第二項及び第三項の規定により作成され、ファイルに記録された電磁的記録をいう。第二百六十九条第二項において同じ。)に記録されている事項

Article 254-2, paragraph (4), item (ii)

the matters recorded in an electronic record that records an agreement reached through mediation, or records to the effect that the court has closed the case while deciding not to conduct a mediation or considering that mediation has been unsuccessful;

調停において成立した合意を記録し、又は調停をしないものとして、若しくは調停が成立しないものとして事件が終了した旨を記録した電子調書に記録されている事項

Article 254-2, paragraph (4), item (iii)

the matters that that party has recorded in a file, using the Electronic Data Processing System specified by the Rules of the Supreme Court, pursuant to the provisions of this Act or other laws and regulations;

当該当事者がこの法律その他の法令の規定により最高裁判所規則で定める電子情報処理組織を使用してファイルに記録した事項

Article 254-2, paragraph (4), item (iv)

the matters entered or recorded in a paper document, etc. or recording medium submitted by that party, in the case where such matters have been recorded in a file pursuant to the provisions of Article 132-12, paragraph (1) of the Code of Civil Procedure as applied mutatis mutandis by replacing certain terms and phrases pursuant to Article 38, paragraph (1), or pursuant to the provisions of Article 132-13 of that Code as applied mutatis mutandis by replacing certain terms and phrases pursuant to Article 38, paragraph (2).

当該当事者が提出した書面等又は記録媒体に記載され、又は記録された事項が第三十八条第一項において読み替えて準用する民事訴訟法第百三十二条の十二第一項の規定又は第三十八条第二項において読み替えて準用する同法第百三十二条の十三の規定によりファイルに記録された場合における当該事項

Article 254-2, paragraph (5)

The provisions of paragraph (3) of the preceding Article apply mutatis mutandis to a petition for permission for the inspection, etc. of an electronic or magnetic record of a case for mediation of domestic relations, and the provisions of paragraph (5) of that Article apply mutatis mutandis to a request for the inspection and copying of an electronic or magnetic record of a case for mediation of domestic relations, respectively.

前条第三項の規定は電磁的家事調停事件記録の閲覧等の許可の申立てについて、同条第五項の規定は電磁的家事調停事件記録の閲覧及び複写の請求について、それぞれ準用する。

Article 254-2, paragraph (6)

When a petition for permission for the inspection, etc. of an electronic or magnetic record of a case for mediation of domestic relations is filed by a party in a mediation case regarding the matter prescribed in Article 277, paragraph (1), the provisions of Article 47, paragraphs (3), (4), and (8) through (10) apply mutatis mutandis.

第二百七十七条第一項に規定する事項についての調停事件において、当事者から電磁的家事調停事件記録の閲覧等の許可の申立てがあった場合については、第四十七条第三項、第四項及び第八項から第十項までの規定を準用する。

Article 254-3第二百五十四条の三

Certification of Matters Concerning a Case for Mediation of Domestic Relations(家事調停事件に関する事項の証明)
Article 254-3, paragraph (1)

A party may make a request to a court clerk, as provided by the Rules of the Supreme Court, for the issuance of a paper document stating matters concerning a case for mediation of domestic relations, for which the court clerk has certified those matters by the method specified by the Rules of the Supreme Court, or for the provision of an electronic or magnetic record recording those matters, for which the court clerk has certified those matters by the method specified by the Rules of the Supreme Court, by a method of recording it in a file kept on the computer used by that person using the Electronic Data Processing System specified by the Rules of the Supreme Court, or by any other method specified by the Rules of the Supreme Court.

当事者は、裁判所書記官に対し、最高裁判所規則で定めるところにより、家事調停事件に関する事項を記載した書面であって裁判所書記官が最高裁判所規則で定める方法により当該事項を証明したものを交付し、又は当該事項を記録した電磁的記録であって裁判所書記官が最高裁判所規則で定める方法により当該事項を証明したものを最高裁判所規則で定める電子情報処理組織を使用してその者の使用に係る電子計算機に備えられたファイルに記録する方法その他の最高裁判所規則で定める方法により提供することを請求することができる。

Article 254-3, paragraph (2)

A third party who has made a prima facie showing of interest may, with permission from the family court, make a request to a court clerk under the provisions of the preceding paragraph.

利害関係を疎明した第三者は、家庭裁判所の許可を得て、裁判所書記官に対し、前項の規定による請求をすることができる。

Article 254-3, paragraph (3)

When a petition for permission under the provisions of the preceding paragraph is filed by a third party who has made a prima facie showing of interest, the family court may grant permission thereto when it finds it to be appropriate.

家庭裁判所は、利害関係を疎明した第三者から前項の規定による許可の申立てがあった場合において、相当と認めるときは、これを許可することができる。

Section 2 Petitions for Mediation of Domestic Relations第二節 家事調停の申立て等

Article 255第二百五十五条

Petition for Mediation of Domestic Relations(家事調停の申立て)
Article 255, paragraph (1)

A petition for mediation of domestic relations must be filed by submitting a written petition (referred to as a "written petition for mediation of domestic relations" in the following paragraph and the following Article) to a family court.

家事調停の申立ては、申立書(次項及び次条において「家事調停の申立書」という。)を家庭裁判所に提出してしなければならない。

Article 255, paragraph (2)

A written petition for mediation of domestic relations must state the following matters:

家事調停の申立書には、次に掲げる事項を記載しなければならない。

Article 255, paragraph (2), item (i)

the party (parties) and the legal representative(s); and

当事者及び法定代理人

Article 255, paragraph (2), item (ii)

the object of and reasons for the petition.

申立ての趣旨及び理由

Article 255, paragraph (3)

An immediate appeal may be filed against a ruling to dismiss a petition for mediation of domestic relations as unlawful.

家事調停の申立てを不適法として却下する審判に対しては、即時抗告をすることができる。

Article 255, paragraph (4)

The provisions of Article 49, paragraphs (3) through (7) and Article 50 (excluding the proviso to paragraph (1)) apply mutatis mutandis to a petition for mediation of domestic relations. In this case, the term "paragraph (2)" in Article 49, paragraph (4) is deemed to be replaced with "Article 255, paragraph (2)".

第四十九条第三項から第七項まで及び第五十条(第一項ただし書を除く。)の規定は、家事調停の申立てについて準用する。この場合において、第四十九条第四項中「第二項」とあるのは、「第二百五十五条第二項」と読み替えるものとする。

Article 256第二百五十六条

Sending of Copies of Written Petitions for Mediation of Domestic Relations(家事調停の申立書の写しの送付等)
Article 256, paragraph (1)

When a petition for mediation of domestic relations is filed, the family court must send a copy of a written petition for mediation of domestic relations to the respondent, except when the petition is unlawful or when it closes the case for mediation of domestic relations pursuant to the provisions of Article 271 without holding a date for proceedings for mediation of domestic relations; provided, however, that if it is found that there is a risk of interfering with the smooth progress in proceedings for mediation of domestic relations, the family court may give notice to the respondent of the fact that a petition for mediation of domestic relations is filed, in lieu of sending a copy of a written petition for mediation of domestic relations.

家事調停の申立てがあった場合には、家庭裁判所は、申立てが不適法であるとき又は家事調停の手続の期日を経ないで第二百七十一条の規定により家事調停事件を終了させるときを除き、家事調停の申立書の写しを相手方に送付しなければならない。ただし、家事調停の手続の円滑な進行を妨げるおそれがあると認められるときは、家事調停の申立てがあったことを通知することをもって、家事調停の申立書の写しの送付に代えることができる。

Article 256, paragraph (2)

The provisions of Article 49, paragraphs (4) through (6) apply mutatis mutandis when it is impossible to send a copy of a written petition for mediation of domestic relations or to give notice in lieu of sending the copy under the provisions of the preceding paragraph, and the provisions of Article 67, paragraphs (3) and (4) apply mutatis mutandis to the prepayment of costs for sending a copy of a written petition for mediation of domestic relations or for giving notice in lieu of sending the copy under the provisions of the preceding paragraph.

第四十九条第四項から第六項までの規定は前項の規定による家事調停の申立書の写しの送付又はこれに代わる通知をすることができない場合について、第六十七条第三項及び第四項の規定は前項の規定による家事調停の申立書の写しの送付又はこれに代わる通知の費用の予納について準用する。

Article 257第二百五十七条

Principle of Mediation First(調停前置主義)
Article 257, paragraph (1)

A person who intends to file an action on a case where a mediation may be possible pursuant to the provisions of Article 244 must first file a petition for mediation of domestic relations with a family court.

第二百四十四条の規定により調停を行うことができる事件について訴えを提起しようとする者は、まず家庭裁判所に家事調停の申立てをしなければならない。

Article 257, paragraph (2)

When a person files an action on the case set forth in the preceding paragraph without filing a petition for mediation of domestic relations, the court must, by its own authority, refer the case to a mediation of domestic relations; provided, however, that this does not apply when the court finds it to be inappropriate to refer the case to mediation.

前項の事件について家事調停の申立てをすることなく訴えを提起した場合には、裁判所は、職権で、事件を家事調停に付さなければならない。ただし、裁判所が事件を調停に付することが相当でないと認めるときは、この限りでない。

Article 257, paragraph (3)

When the court refers a case pursuant to the provisions of the preceding paragraph, it must have the case processed by a family court which has jurisdiction over the case; provided, however, that when it finds it to be particularly necessary in order to process a case for mediation of domestic relations, it may have the case processed by a family court other than the family court which has jurisdiction over the case.

裁判所は、前項の規定により事件を調停に付する場合においては、事件を管轄権を有する家庭裁判所に処理させなければならない。ただし、家事調停事件を処理するために特に必要があると認めるときは、事件を管轄権を有する家庭裁判所以外の家庭裁判所に処理させることができる。

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