Where stipulated in the tender documents, business volume is assessed based on the bidder's total turnover or revenue from similar work performed, depending on the nature of the contract. The documents must be submitted in the form of an income statement prepared in accordance with the relevant legislation and certified by a certified public accountant or sworn-in certified public accountant. The tender documents specify the years and the percentage to be used in calculating the required amount. In practice, the most common error is that the year to which the document relates or the form of certification differs from that required in the tender documents.
Legal basis: Law No. 4734, Article 10; Tender Implementing Regulations
