Regulations Governing Licences and Ratings for Airmen Article 7
The period of validity of an airman certificate is 5 years, for flight instructor rating is 2 years, in compliance with the following rulings:(1) Periodical renewal of ratings: Unless the rating is either suspended or revoked, the rating holder may apply for renewal in 3 months before the current rating expires, attached with 2-inch photos taken within the last 6 months, and a copy of airman certificate in validity.(2) Renewal of overdue ratings: Airman with rating overdue for more than 12 months, shall successfully pass both knowledge and practical examinations before any re-application of the rating can be processed. Airman rating overdue for less than 12 months can be renewed and the validity period is effective from the re-issued date.(3) Added rating: For any additional rating of the same category, the applicant shall have demonstrated a degree of skill appropriate for which the rating is sought. For any additional rating of different categories the applicant shall have to demonstrate both knowledge and skill for which the rating is sought but exclude the written subjects for which the applicant has passed. When applying additional rating by Aircraft pilot and flight engineers shall provide training records and photocopies of valid certificates.The holder of airman certificate shall sign the certificate and comply with the following rulings:(1) Keeping the airman ratings valid and compliance with the privileges and limitations of ratings when working.(2) Shall not perform the work, authorized by the airman rating, when the airman rating become invalid.
中文原文 航空人員檢定給證管理規則第7條
航空人員檢定證自發證之日起有效期間為五年，飛航教師檢定證有效期間為二年。
並依下列各款規定辦理：
一、屆期重簽：檢定證持有人除經撤銷或廢止外，得於屆期前三個月內檢附六個月內之半身照片及有效檢定證影本辦理重簽。
二、逾期檢定：航空人員屆期重簽逾期十二個月以上，應經學、術科重新檢定合格後，始得辦理。
逾期未達十二個月者，以申請日為發證日。
三、檢定加簽：航空人員增加檢定項目時，應經民航局檢定合格；增加同類別之其他檢定項目，無需實施學科檢定。
增加不同類別之檢定項目，應實施學科檢定，但已檢定合格之學科檢定項目不須重新檢定。
駕駛員或飛航工程師之檢定加簽，應另送訓練紀錄及有效檢定證之影本。
檢定證應由持有人簽名並遵守下列規定：
一、確保檢定證之有效性並於檢定證授權之工作範圍內執行工作。
二、檢定證失效時，不得從事檢定證授權之工作。
並依下列各款規定辦理：
一、屆期重簽：檢定證持有人除經撤銷或廢止外，得於屆期前三個月內檢附六個月內之半身照片及有效檢定證影本辦理重簽。
二、逾期檢定：航空人員屆期重簽逾期十二個月以上，應經學、術科重新檢定合格後，始得辦理。
逾期未達十二個月者，以申請日為發證日。
三、檢定加簽：航空人員增加檢定項目時，應經民航局檢定合格；增加同類別之其他檢定項目，無需實施學科檢定。
增加不同類別之檢定項目，應實施學科檢定，但已檢定合格之學科檢定項目不須重新檢定。
駕駛員或飛航工程師之檢定加簽，應另送訓練紀錄及有效檢定證之影本。
檢定證應由持有人簽名並遵守下列規定：
一、確保檢定證之有效性並於檢定證授權之工作範圍內執行工作。
二、檢定證失效時，不得從事檢定證授權之工作。