Collective Agreement Act Article 3

Stipulations in a collective agreement which contravene with the compulsory or prohibitive provisions of laws shall be null and void; except nullity and voidance are not implied in the provisions.
中文原文 團體協約法第3條
團體協約違反法律強制或禁止之規定者,無效。
但其規定並不以之為無效者,不在此限。

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