Quality and Standard Certificates in Public Service Procurement Tenders

02 January 2026

The stage at which, the legal character in which, and the limits within which quality and standard certificates may be required in service procurement tenders are among the subjects most frequently giving rise to disputes in practice. Within the framework of Public Procurement Law No. 4734 and the secondary legislation, this study addresses the legal character of such certificates, the distinction between qualification criterion, non-price criterion and condition of contract performance, the limits within which ISO, TS, TSE, food business registration and accreditation certificates may be required, their submission in joint ventures and consortia, and errors in practice in the light of settled Public Procurement Board decisions.