Article 46, paragraph (1)
If any of the following grounds exist, the parties may file a petition with the court to set aside the arbitral award:
当事者は、次に掲げる事由があるときは、裁判所に対し、仲裁判断の取消しの申立てをすることができる。
This text is not in force yetIt by 13 June 2028, on a day set by — at the latest in 2 years
Read the text in force →Arbitration Act
仲裁法
Chapter VII Setting Aside of Arbitral Award
The law as Act on the Arrangement of Related Acts to Promote the Use of Information and Communications Technology in Civil Procedures, etc. (Act No. 53 of 2023) leaves it, with the words it changes marked.
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Chapter VII Setting Aside of Arbitral Award第七章 仲裁判断の取消し
Article 46第四十六条
1 change in this articleArticle 46, paragraph (1), item (i)
the arbitration agreement is not valid due to the limitation on the legal capacity of a party;
仲裁合意が、当事者の行為能力の制限により、その効力を有しないこと。
Article 46, paragraph (1), item (ii)
the arbitration agreement is not valid on grounds other than the limitation on the legal capacity of a party pursuant to the laws and regulations designated by the agreement of the parties as those which should be applied to the arbitration agreement (or if the designation has not been made, pursuant to Japanese laws and regulations);
仲裁合意が、当事者が合意により仲裁合意に適用すべきものとして指定した法令（当該指定がないときは、日本の法令）によれば、当事者の行為能力の制限以外の事由により、その効力を有しないこと。
Article 46, paragraph (1), item (iii)
the petitioner did not receive the notice that is required pursuant to Japanese laws and regulations (or if the parties have reached an agreement on the matters concerning the provisions unrelated to public order in those laws and regulations, pursuant to the agreement) in the procedure of appointing arbitrators or in the arbitration procedure;
申立人が、仲裁人の選任手続又は仲裁手続において、日本の法令（その法令の公の秩序に関しない規定に関する事項について当事者間に合意があるときは、当該合意）により必要とされる通知を受けなかったこと。
Article 46, paragraph (1), item (iv)
the petitioner was unable to conduct a defense in the arbitration procedure;
申立人が、仲裁手続において防御することが不可能であったこと。
Article 46, paragraph (1), item (v)
the arbitral award contains a decision concerning matters beyond the scope of the arbitration agreement or of the petition presented in the arbitration procedure;
仲裁判断が、仲裁合意又は仲裁手続における申立ての範囲を超える事項に関する判断を含むものであること。
Article 46, paragraph (1), item (vi)
the composition of the arbitral tribunal or the arbitration procedure is in violation of Japanese laws and regulations (or if the parties have reached an agreement regarding the matters concerning the provisions unrelated to public order in those laws and regulations, the agreement);
仲裁廷の構成又は仲裁手続が、日本の法令（その法令の公の秩序に関しない規定に関する事項について当事者間に合意があるときは、当該合意）に違反するものであったこと。
Article 46, paragraph (1), item (vii)
a petition filed in the arbitration procedure is concerned with a dispute which may not be subject to an arbitration agreement pursuant to the provisions of Japanese laws and regulations; or
仲裁手続における申立てが、日本の法令によれば、仲裁合意の対象とすることができない紛争に関するものであること。
Article 46, paragraph (1), item (viii)
the content of the arbitral award is contrary to public policy in Japan.
仲裁判断の内容が、日本における公の秩序又は善良の風俗に反すること。
Article 46, paragraph (2)Changed
The petition referred to in the preceding paragraph may not be filed when three months have elapsed from the date on which the notice was given through sending of a copy of the written arbitral award (including the written decision made by the arbitral tribunal under Article 4143 through the preceding Article), or when the enforceability order under Article 4648 has become final and binding.
前項の申立ては、仲裁判断書（第四十一条第四十三条から前条までの規定による仲裁廷の決定の決定書を含む。）の写しの送付による通知がされた日から三箇月を経過したとき、又は第四十六条第四十八条の規定による執行決定が確定したときは、することができない。
Article 46, paragraph (3)
An immediate appeal may be filed against the decision under Article 5, paragraph (4) or (5) with regard to the case related to the petition referred to in paragraph (1).
第一項の申立てに係る事件についての第五条第四項又は第五項の規定による決定に対しては、即時抗告をすることができる。
Article 46, paragraph (4)
The court may not make a decision on the petition referred to in paragraph (1) without holding an oral argument or a hearing which both parties can attend.
裁判所は、口頭弁論又は当事者双方が立ち会うことができる審尋の期日を経なければ、第一項の申立てについての決定をすることができない。
Article 46, paragraph (5)
If the petition referred to in paragraph (1) has been filed, and the court finds that any of the grounds stated in the items of the paragraph exist (for the grounds set forth in items (i) through (vi) of that paragraph, limited to the case in which the applicant has proved the existence of the grounds), it may set aside the arbitral award.
裁判所は、第一項の申立てがあった場合において、同項各号に掲げる事由のいずれかがあると認めるとき（同項第一号から第六号までに掲げる事由にあっては、申立人が当該事由の存在を証明した場合に限る。）は、仲裁判断を取り消すことができる。
Article 46, paragraph (6)
If the grounds stated in paragraph (1), item (v) exist, and the part concerning the matters provided for in that item can be separated from the other parts of the arbitral award, the court may set aside only the relevant part of the arbitral award.
第一項第五号に掲げる事由がある場合において、当該仲裁判断から同号に規定する事項に関する部分を区分することができるときは、裁判所は、仲裁判断のうち当該部分のみを取り消すことができる。
Article 46, paragraph (7)
An immediate appeal may be filed against the decision on the petition referred to in paragraph (1).
第一項の申立てについての決定に対しては、即時抗告をすることができる。
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