Does CERN apply GDPR?

No. CERN does not apply the General Data Protection Regulation 2016/679 (GDPR), nor the Swiss Data Protection Act (FADP), nor any other national data protection law. CERN as an Intergovernmental Organisation applies solely its own internal data protection framework, the Operational Circular no. 11 “The Processing of Personal Data at CERN” (OC 11).