Government Procurement Act Article 58
Where a contract is to be awarded to the lowest tender, an entity may set a time-limit for the tenderer offering the lowest tender to provide an explanation or a security if the total or a part of the offered price is so low that it evidently appears to be unreasonable, and the quality of performance is likely to be impaired or the contract is not likely to be performed in good faith, or there is any other extraordinary situations. If such tenderer fails to submit a reasonable explanation or a security before the deadline set forth by the entity, the contract may not be awarded to the tenderer, and the tenderer offering the second lowest tender shall then be deemed as the tenderer offering the lowest tender.
中文原文 政府採購法第58條
機關辦理採購採最低標決標時，如認為最低標廠商之總標價或部分標價偏低，顯不合理，有降低品質、不能誠信履約之虞或其他特殊情形，得限期通知該廠商提出說明或擔保。
廠商未於機關通知期限內提出合理之說明或擔保者，得不決標予該廠商，並以次低標廠商為最低標廠商。
廠商未於機關通知期限內提出合理之說明或擔保者，得不決標予該廠商，並以次低標廠商為最低標廠商。