noun
mandatory statute; mandatory provision
Legal term for a statute or provision that cannot be overridden by private agreement; its application is compulsory regardless of the parties' intentions.
この契約条項は強行法規に違反するため無効です。
This contract clause is void because it violates a mandatory statute.
労働基準法の多くは強行法規とされています。
Many provisions of the Labor Standards Act are considered mandatory statutes.