What it means
に則って means “in accordance with” or “in conformity with.” It indicates that an action is carried out according to an established rule, regulation, principle, precedent, or model. This expression is formal and is especially common in written, administrative, academic, legal, and professional contexts.
Usage note
に則って normally follows a noun referring to a standard, rule, principle, or precedent. It is more formal than に従って, and it should not usually be used for a simple sequence or procedure unless that procedure functions as an established standard.
How to use it
大学の研究倫理規程に則って、調査記録を管理します。
We manage the research records in accordance with the university's research ethics regulations.
大学の研究倫理規程に則って、調査記録を管理する。
We manage the research records in accordance with the university's research ethics regulations.