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Article 143Amending an Action

第百四十三条(訴えの変更)

As long as it does not fundamentally change the claims, the plaintiff may amend a claim for relief or the statement of the claim until the time that oral arguments reach their conclusion; provided, however, that this does not apply if doing so would substantially delay the litigation proceedings.

原告は、請求の基礎に変更がない限り、口頭弁論の終結に至るまで、請求又は請求の原因を変更することができる。ただし、これにより著しく訴訟手続を遅滞させることとなるときは、この限りでない。

The amendment of a claim for relief must be effected by means of a paper document.

請求の変更は、書面でしなければならない。

The paper document referred to in the preceding paragraph must be served upon the adverse party.

前項の書面は、相手方に送達しなければならない。

If the court finds the amendment of the claim for relief or of the statement of the claims to be inappropriate, it must rule against permitting the amendment, upon petition or sua sponte.

裁判所は、請求又は請求の原因の変更を不当であると認めるときは、申立てにより又は職権で、その変更を許さない旨の決定をしなければならない。

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