Regulations Governing the Use of Commodity Inspection Mark Article 6

The Roman letter "C" Mark labels printed by the BSMI shall be issued upon approval of the application for inspection by the applicant. The applicant shall apply the Mark labels onto commodities before they are sampled for inspection. However, commodities that have been granted prior release by the BSMI may be labeled after sampling.If the Mark labels have not been applied in accordance with requirements, the BSMI or its subsidiary branches (hereinafter referred to as the inspection authority) may send its personnel to supervise the method by which the Mark labels are applied.
中文原文 商品檢驗標識使用辦法(910109訂定)第6條
標準檢驗局印製之「C」字軌商品檢驗標識由報驗義務人於報驗時申請核發,在取樣前由報驗義務人自行黏貼、放置或繫掛完整。
但先行放行案件,得於取樣後標示。
前項商品檢驗標識之黏貼、放置或繫掛,曾有未依規定附加完整者,標準檢驗局或其所屬轄區分局(以下簡稱檢驗機關)得派員監督商品檢驗標識之黏貼、放置或繫掛。

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