The Law of Ships Article 86
The practicing certificate of a ship surveyor is valid for 5 years. Licensed ship surveyors shall apply for renewal of the practicing certificate one month before the expiry of the license, enclosing the original practicing certificate and supporting documents of the service experience.
中文原文 船舶法第86條
驗船師執業證書有效期間五年；領有該執業證書之驗船師，應於執業執照有效期間屆滿一個月前，檢具原領執業證書及服務經歷證明文件，申請換發執業證書。