Regulations Governing Travel Agencies Article 29

A travel agency, having been approved and registered, shall commence business within one month after obtaining its operating license.The travel agency may put up its signboard only after it has obtained its operating license. In the event of a change in its address, the travel agency shall remove the signboard at the original address before changing its operating license.The stipulations of the preceding two paragraphs shall apply mutatis mutandis to the branch company of a travel agency.
中文原文 旅行業管理規則第29條
旅行業經核准註冊,應於領取旅行業執照後一個月內開始營業。
旅行業應於領取旅行業執照後始得懸掛市招。
旅行業營業地址變更時,應於換領旅行業執照前,拆除原址之全部市招。
前二項規定於分公司準用之。

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