The ISO/IEC 17021 Certificate is issued by accreditation body, which is authorized to provide accreditation under the ISO/IEC 17021. The ISO 17021 certificate is issued for the specific period after successful completion of registration (Final) assessment. Surveillance audits are conducted by the Accreditation body after one year.
ISO/IEC 17021 is an accreditation, which is granted to the Certification bodies by approved accreditation body. It is an accreditation not certification like ISO 9001, ISO 14001 and other system certification.