Government Procurement Act Article 35

An entity may provide in the tender documentation that a supplier is allowed to submit an alternative technology, construction methods, materials, or equipment to shorten construction duration, save expenditure, or increase the efficiency, provided that the original function requirement is not impaired. The implementing regulations shall be prescribed by the responsible entity.
中文原文 政府採購法第35條
機關得於招標文件中規定,允許廠商在不降低原有功能條件下,得就技術、工法、材料或設備,提出可縮減工期、減省經費或提高效率之替代方案。
其實施辦法,由主管機關定之。

English translation for reference only; the Chinese text prevails. Not legal advice.