Public Welfare Solicitation Act Article 15

In carrying out any Solicitation Campaign, personnel affiliated with the soliciting organization shall take the initiative to show the permit documents issued by the competent authority and the working badge issued by the relevant soliciting organization, whereas if the campaign is publicized through media, the specification or statement of the solicitation permit number shall suffice.
中文原文 公益勸募條例第15條
勸募團體所屬人員進行勸募活動時,應主動出示主管機關許可文件及該勸募團體製發之工作證。
但以媒體方式宣傳者,得僅載明或敘明勸募許可文號。

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