Standards for Qualifications of Tenderers and Determination of Special or Large Procurement Article 13

In the event of prescribing any specific qualifications for the tenderers, an entity shall evaluate the number of potential qualified tenderers in advance, and review whether there exists any improper restriction on competition.
中文原文 投標廠商資格與特殊或巨額採購認定標準第13條
機關訂定投標廠商之特定資格時,應先評估可能符合特定資格之廠商家數,並檢討有無不當限制競爭之情形。

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