Government Procurement Act Article 46

Unless otherwise provided for in this Act, an entity shall set a government estimate for a procurement. The government estimate shall be itemized based upon the drawings, specifications, and contract requirements by taking into account the costs, market prices, and past award records of government entities, and be approved by the head of the entity or the personnel authorized by the head.The time for setting the government estimate referred to in the preceding paragraph shall be determined according to the following:1. in the case of open tendering procedures, prior to the opening of tenders.2. in the case of selective tendering procedures, prior to the opening of tenders for the step next to the qualification review.3. in the case of limited tendering procedures, prior to the conducting of price negotiation with one single supplier or price comparison among two or more suppliers.