Enforcement Rules of Labor Union Act Article 4

The term “types and numbers of labor unions” referred to in Paragraph 2 to Article 8 of the Act denotes to those within the scope of the nation, the mount of those labor unions they are of the identical type of the established national confederated labor union organizations.If national confederated labor union organizations organized in accordance with Paragraph 3 to Article 8 of the Act cannot reach one / third of the identical types and numbers, or their administrative districts encompassed cannot reach one and half of total number of municipal, county (city) governments, the Central Competent Authority shall not allow them to register.
中文原文 工會法施行細則第4條
本法第八條第三項所稱工會種類數額,指在全國範圍內,與成立全國性工會聯合組織之種類相同之工會數額。
依本法第八條第三項發起之全國性工會聯合組織,其發起數額未達同種類數額三分之一,或所含行政區域未達全國直轄市、縣(市)總數二分之一者,中央主管機關不予登記。

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