Regulations Governing the Outsourcing of Food and Related Product Examination and Registration Procedures Article 6

The service provider and competent Central Authority shall sign and execute a written service contract according to which the service provider provides services pertaining to the examination and registration of food and related products.
中文原文 食品與相關產品查驗登記業務委託辦法第6條
受託機構應與中央主管機關簽訂書面委託契約,辦理食品與相關產品查驗登記業務。

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