Armed Forces Uniforms Act Article 9

Paragraph 1The supply and distribution of uniforms, cockades, cap tassels, rank insignias, other emblems, clothes, underwear, underpants, army socks, army boots for active duty servicemen are stipulated by the Ministry of National Defense; those who are appointed to other agencies may be supplied and distributed via entrusting by the Ministry of National Defense.Paragraph 2the provisions of preceding paragraph shall apply mutatis mutandis to the supply and distribution for cadets.
中文原文 陸海空軍服制條例第9條
現役軍人穿著之制服、帽徽、帽飾、階級標識與其他標識、各種服裝、裡衣、裡褲、軍襪及軍鞋之籌補方式及對象,由國防部定之;其調國防部以外機關(構)任職者,得由該機關(構)委託國防部籌補。
軍事學校學生有關服裝之籌補,準用前項規定。

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