Postal Remittances and Savings Act Article 21

Domestic remittances and international remittances are divided into the categories of demand transfers and wire transfers.Apart from wire transfers, postal remittances should all come in the form of postal money orders or postal gift coupons.Subject to approval by the MOTC, Chunghwa Post may write terms and conditions to be printed on the postal money orders or postal gift coupons.
中文原文 郵政儲金匯兌法第21條
國內匯兌及國際匯兌,分為票匯及電匯二種。
郵政匯兌除電匯外,應以郵政匯票或郵政禮券為憑。
郵政匯票及郵政禮券應記載事項,由中華郵政公司擬訂,報交通部核定。

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