Enforcement Rules of the Implementation Act of Substitute Services Article 16

Draftees born in or before 1980 who are obligated to perform military service but has not been drafted into the camp may apply for taking substitute services, and the applications shall be processed individually by the competent authorities in collaboration with the MOD.
中文原文 替代役實施條例施行細則第16條
中華民國六十九年次以前出生有履行兵役義務尚未徵集入營之役男,申請服替代役者,由主管機關會商國防部專案辦理。

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