The Commodity Inspection Act Article 54

An on-site inspection fee shall be charged when personnel are dispatched to a location outside the BSMI or any other government agency, legal entity, or organization commissioned by the BSMI to conduct inspection-related activities requested by an obligatory inspection applicant.
中文原文 商品檢驗法第54條
凡應報驗義務人之請求,派員至標準檢驗局或受委託之其他政府機關、法人或團體以外之地點臨場執行檢驗相關業務者,應收取臨場費。

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