Implementation Regulations of Real Estate Broking Management Act Article 21

(1)A broking agency shall display the following documents in an obvious place in the business office according to the articles 18 and 20.i.The permit document of broking agency.ii.The certified document of membership of business association.iii.The certificates of real estate brokers.iv.The broker's fees and the paying process .(2)The aforementioned (i)(ii)(iii) documents could be displayed the copies.(3)A broking agency for sale is excluded the aforementioned (vi) document.
中文原文 不動產經紀業管理條例施行細則第21條
經紀業應依本條例第十八條及第二十條規定,於營業處所明顯之處,揭示下列文件:
一、經紀業許可文件。
二、同業公會會員證書。
三、不動產經紀人證書。
四、報酬標準及收取方式。
前項第一款至第三款文件,得以影本為之。
第一項第四款規定,於代銷經紀業不適用之。

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