Regulations For Management Of Central Government Bonds Article 14

Registered certificates shall be sold during the prescribed time period only by a bank branch appointed to make the payment of principal and interest. In addition, purchasers shall submit a completed seal specimen card for record and verification.
中文原文 中央公債經理辦法第14條
記名式債票,限由受託辦理還付本息業務之經辦行,於規定期間內經售,並應由承購人填具印鑑卡,留存備驗。

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