Government Procurement Act Article 53

Where the lowest tender which meets the requirements set forth in the tender documentation exceeds the government estimate, the entity may request the tenderer to reduce the price once. If the reduced price still exceeds the government estimate, the entity may request all tenderers whose tenders meet the requirements set forth in the tender documentation to reduce their prices and then make a comparison. Such price reduction and comparison shall not be more than three times.If, after following the procedure set forth in the preceding paragraph, the lowest tender still exceeds the government estimate but not over the budget amount, and the entity needs to award the contract for emergency, then the award of contract shall be approved by the person who has approved the government estimate or the authorized personnel of such person, and the value of the winning award shall not exceed the government estimate by more than eight percent provided however that the award of contract shall in addition be approved by the superior entity in advance for cases where the value of procurement reaches the threshold for supervision and the value of the award exceeds the government estimate by more than four percent.