Hearing Specialists Act Article 17

A hearing clinic shall be staffed with a responsible hearing specialist to oversee the business of the clinic. The responsible hearing specialist must have practiced at an institution designated by the central competent authority for at least two years. The years of practice mentioned in the preceding paragraph are recognized only if the responsible hearing specialist has a hearing specialist certificate and has registered his or her practice with the municipality or county (city) authority according to law. Notwithstanding the foregoing, the actual years of service rendered by a practicing hearing specialist before this Act is promulgated are also recognized.
中文原文 聽力師法第17條
聽力所應置負責聽力師,對該機構業務,負督導責任。
負責聽力師以在中央主管機關指定之機構執行業務二年以上者為限。
前項執行業務年資之採計,以領有聽力師證書,並依法向直轄市、縣(市)主管機關辦理執業登記者為限。
但於本法公布施行前已執行業務者,其實際服務年資得併予採計。

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