Enforcement Rules of the Atomic Energy Law Article 19

No nuclear fuel shall be loaded into a nuclear reactor unless an operating license has been granted by the Atomic Energy Council.
中文原文 原子能法施行細則第19條
核子反應器內,未經原子能委員會依法核發使用執照者,不得放置核子燃料。

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