Copyright Act Article 90-4

An Internet service provider shall be entitled to the application of Article 90-5 to Article 90-8 regarding the limitation on liability only if the service provider—1. by contract, electronic transmission, automatic detective system or other means, informs users of its copyright or plate right protection policy, and takes concrete action to implement it; and2. by contract, electronic transmission, automatic detective system or other means, informs users that in the event of repeat alleged infringements up to three times the service provider shall terminate the service in whole or in part; and3. publicly announces information regarding its contact window for receipt of notification documents.4. accommodate and implement the technical measure described in paragraph 3.A connection service provider that, after receiving notification by a copyright holder or plate rights holder of alleged infringement by a user, has forwarded the notification to that particular user by electronic mail is deemed to have met the requirement in the preceding paragraph, subparagraph 1.If a copyright holder or plate rights holder has provided technical measures which have been developed based on a broad consensus and are used to identify or protect copyrighted or plate-righted works, the Internet service provider shall accommodate and implement the measures if the technical measures has been ratified by the competent authority.
中文原文 著作權法第90-4條
符合下列規定之網路服務提供者,適用第九十條之五至第九十條之八之規定:
一、以契約、電子傳輸、自動偵測系統或其他方式,告知使用者其著作權或製版權保護措施,並確實履行該保護措施。
二、以契約、電子傳輸、自動偵測系統或其他方式,告知使用者若有三次涉有侵權情事,應終止全部或部分服務。
三、公告接收通知文件之聯繫窗口資訊。
四、執行第三項之通用辨識或保護技術措施。
連線服務提供者於接獲著作權人或製版權人就其使用者所為涉有侵權行為之通知後,將該通知以電子郵件轉送該使用者,視為符合前項第一款規定。
著作權人或製版權人已提供為保護著作權或製版權之通用辨識或保護技術措施,經主管機關核可者,網路服務提供者應配合執行之。

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