Regulations Governing the Handling of Mail Article 20
Mail items with postage stamps or other postage paid symbols that have been cut, pasted together, scratched, pasted over, or that were used and washed shall not be delivered.
中文原文 郵件處理規則第20條
郵件上之郵票或其他表示郵資已付之符誌，有剪割、拼集、塗刮、塗抹膠漿或已使用且經洗刷者，不為遞送。