National Property Act Article 10

The competent authority of the public use property is in accordance with the Budget Act.IF the public-use property is utilized by two or more organizations and not administered by the same organization, the Executive Yuan shall appoint its competent authority.
中文原文 國有財產法第10條
公用財產之主管機關,依預算法之規定。
公用財產為二個以上機關共同使用,不屬於同一機關管理者,其主管機關由行政院指定之。

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