Regulations Governing Foreign Exchange Business of Banking Enterprises Article 20

(Application for Conducting Foreign Exchange Business during Non-standard Business)To engage in foreign exchange business during non-standard business hours, an authorized bank shall submit a description of the relevant operations (including the cut off time for including the relevant transactions in the same-day or next-day "Daily Transaction Report" and "Daily Foreign Exchange Position Report"; the preceding provision applies when there is a change to the services.Designated branches of an authorized bank that has been approved by the Bank according to the preceding paragraph are not required to apply for separate approval on a case-by-case basis to conduct the business, provided the branches engage in the foreign exchange business in the preceding paragraph in accordance with the authorized bank's description of operations.
中文原文 銀行業辦理外匯業務管理辦法第20條
指定銀行於非共同營業時間辦理外匯業務,應檢附相關作業說明(含劃分相關交易列報營業當日或次營業日「交易日報」及「外匯部位日報表」等報表之時點)向本行申請許可;業務項目若有變動時,亦同。
指定銀行經本行為前項許可後,所屬指定分行依其作業說明辦理前項外匯業務者,無須再逐案申請許可。

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