National Palace Museum Regulations for the Acquisition of Cultural Relics Article 4

The acquisition of cultural relics must be approved by committees formed for their preliminary, intermediate, and final appraisals. Cultural relics already designated as “national treasures” or “important cultural relics” (including those identified overseas) may be forwarded to the final appraisal directly. Members of the committees shall not appear in more than one appraisal. Expenses incurred by committee members not serving on the Museum staff shall be reimbursed in accordance with relevant regulations.
中文原文 國立故宮博物院藏品徵集辦法第4條
藏品之徵集,須經預審、初審及複審三級審查委員會審查通過。
若為國寶或重要古物(含國外審訂者),得逕行複審。
各審級評審委員,均不得重複。
院外委員並得依規定支給相關費用。

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