IT service management certification is provided by certification bodies to organizations that demonstrated that they implemented an IT service management system.
ISO/IEC 20000-1 is an international quality management standard specifically focused on IT service management. ISO 20000 provides a set of standardized requirements for an IT Service Management System (SMS).
A certification body applying for ISO / IEC 20000-1 accreditation must comply with ISO / IEC 17021-1, ISO / IEC20000-6 and other additional international requirements detailed in the Specific Accreditation Requirements for the SMS scheme.