Which of the following privacy frameworks are legally binding?

Binding Corporate Rules (BCRs) are a set of legally binding rules that allow multinational corporations or groups of companies to transfer personal data across borders within their organization in compliance with the EU data protection law1 BCRs are approved by the competent data protection authorities in the EU and are enforceable by data subjects and the authorities2 BCRs are one of the mechanisms recognized by the EU General Data Protection Regulation (GDPR) to ensure an adequate level of protection for personal data transferred outside the European Economic Area (EEA)3