Civil Aviation Act Article 83

Article 81 does not apply in cases where the aircraft maintenance needs of a ROC civil air transport enterprise or general aviation aircraft, or in cases where a government agency is of business purposes or legal persons, bodies entrusted to handle government agency’s business needs, provided the foreign registered aircraft is under a lease or loan approved by the MOTC for a term not to be exceed 6 months.
中文原文 民用航空法第83條
民用航空運輸業或普通航空業因自有航空器維修需要、政府機關因公務或法人、團體受託辦理公務需要,租賃或借用外籍航空器,其期間在六個月以下並經交通部核准者,得不受第八十一條之限制。

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