Regulation or control — restricting or managing behavior by rules or laws (e.g., traffic regulation, industry regulation).
新型ウイルス対策として入国規制が強化された。
Entry regulations were tightened as measures against the new virus.
夜間は交通規制が行われる予定です。
Traffic restrictions are scheduled to be in effect at night.
環境保護のために規制を導入する企業が増えている。
More companies are introducing regulations for environmental protection.