The Age Check Certification Scheme (ACCS) is an independent, not-for-profit UK company and UKAS-accredited conformity assessment body. Its auditors, certification specialists, and data protection experts independently test and certify systems that verify age and identity, helping organisations assess reliability and demonstrate regulatory compliance across online and offline services.

ACCS offers certifications covering age verification and estimation, identity verification, proof of age, UK GDPR, the Age Appropriate Design Code, and digital identity frameworks. Its portfolio also includes certifications aligned with international standards such as ISO/IEC 27566-1, IEEE 2089.1, and ISO 30107 for biometric presentation attack detection. The organisation provides technical evaluations and testing, including in-situ and comparative testing, liveness assessments, ambient lighting analysis, biometric subject behaviour reviews, and injection attack detection. Businesses can also commission customised testing and online test purchasing, which assesses age checks for sellers of age-restricted products and delivers tailored plans and reports. Through its services, learning resources, and certification guidance, ACCS helps organisations evaluate their systems, strengthen assurance, and support compliance with relevant standards and requirements.