Collective Agreement Act Article 33

From the date that the Act is amended and enforced, except for Paragraph 2 to Article 10, the amended provisions of the Act shall be applicable to the collective agreement concluded before the enforcement of the Act.
中文原文 團體協約法第33條
本法施行前已簽訂之團體協約,自本法修正施行之日起,除第十條第二項規定外,適用修正後之規定。

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