The Enforcement Rules of the Motion Picture Act Article 12

Motion picture screening establishments and motion pictures screeners may, in order to carry out the obligations stipulated in Paragraphs 1 and 2 of Article 15 of the Act, require that motion picture providers remit ratings documents which the central competent authority issued.
中文原文 電影法施行細則第12條
電影片映演業、映演人為履行本法第十五條第一項、第二項規定揭示義務,得要求電影片提供者提供中央主管機關發給之該電影片分級證明文件。

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