ACCS 1:2025 Certification Scheme for Age Assurance Systems and Components

The ACCS 1:2025 scheme for certifying age assurance systems and components against ISO/IEC 27566-1: how the client scopes the system or component with its boundaries, contexts of use, attack vectors, data dependencies and exclusions; the public practice statement and its configuration management and external evidence rules; Stage One readiness and Stage Two evidence audits; test plans, sample sizes and reduced-sample statistics for the Basic, Effective, Highly Effective and Strict levels; reporting of indicators of effectiveness with demographic parity; the independent evaluation review and decision; the certificate, schedule and public registry; and annual surveillance, continuous monitoring, change notification and recertification. It comprises 31 controls organised across 9 domains, and applies in the United Kingdom.