A formal statement or allegation; an official declaration or claim, often used in legal or administrative contexts.
彼は裁判所に証拠提出の申し立てをした。
He made a motion to submit evidence to the court.
被告は無罪を申し立てた。
The defendant asserted (declared) their innocence.
行政への申し立てには期限があるので注意してください。
Be aware that there is a deadline for filing administrative claims/appeals.