Regulations Governing Needle-Syringe Services Article 7

Needle-syringe service sites shall display the identification sign issued by the local competent authorities. When performing duties, the needle-syringe service workers shall carry a credential sufficient to prove their identity.
中文原文 針具服務及替代治療實施辦法第7條
針具服務處所應張貼地方主管機關核發之識別標誌;針具服務人員於執行職務時,應配戴足資證明身分之證件。

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