Regulations Governing Customs Measures in Protecting the Rights and Interests of Trademark Article 13

When filing an application or lodging a complaint in accordance with the Regulations, the proprietor of a registered trademark may submit by means of written documents or via electronic data transmission.If application/complaint submitted by written documents, the date of application or complaint shall be based on the time of receipt at Customs. The date of those via registered mail shall be deemed to have been duly filed on the day it is posted as shown by the postmark.If application/complaint submitted by electronic data transmission, the date of application or complaint shall be based on the time information is recorded on customs computer files.In order to check the identity or the qualification of the applicant, Customs may, as it deems necessary, notify the applicant to furnish with his/her identification card or relevant documents.
中文原文 海關執行商標權益保護措施實施辦法第13條
商標權人依本辦法所為之申請或檢舉,應以書面或電子資料傳輸方式提出。
書面提出者,以書面文件到達海關時間為準。
但以掛號郵寄者,以交郵當日之郵戳為準。
電子資料傳輸方式提出者,以經海關電腦記錄有案之時間為準。
海關為查核申請人之身分或資格,必要時,得通知申請人檢附身分證等相關證明文件。

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