Regulations Governing Licences and Ratings for Airmen Article 109

Applicants of air traffic controller rating shall have passed the civil service special examination for civil aviation personnel, completed the academic and professional skills training programs approved by the CAA, and completed at least 3 months of on-the-job training conducted by the holder of air traffic controller certificate with the same rating.Except for the applicants for aerodrome control rating renewal at least 1 month of on-the-job training conducted by the holder of the air traffic controller certificate with the same category of rating, the applicants for the rest air traffic controller rating renewal shall have completed at least 3 months of on-the-job training conducted by the holder of air traffic controller certificate with the same category of rating. All applicants shall have completed the academic and professional skills training programs approve by the CAA.
中文原文 航空人員檢定給證管理規則第109條
申請飛航管制員檢定證者,應經公務人員特種考試民航人員考試飛航管制科別錄取,並在具有該類別檢定證資格之飛航管制員監視下完成至少三個月實際飛航管制訓練,且完成民航局核准之學、術科訓練課程。
申請飛航管制員檢定加簽者,除機場檢定類別應在具有該類別檢定證資格之飛航管制員監視下完成至少一個月實際飛航管制訓練外,應在具有該類別檢定證資格之飛航管制員監視下完成至少三個月實際飛航管制訓練,且完成民航局核准之學、術科訓練計畫之訓練課程。

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