Regulations for Administration on Fixed Network Telecommunications Business Article 25
An operator shall commence its business operation within six months after the date of which a concession license is obtained. In the case of the lapse of the time limit, the competent authority shall abolish the concession, and forfeit the performance bond and its interest or the competent authority may notify the bank providing guarantee to honor its performance guarantee. In the case where the effective period of the approval for establishment has not expired, the approval for establishment shall forthwith be abolished accordingly.
中文原文 固定通信業務管理規則第25條
申請人應於取得特許執照之日起，六個月內開始營業，逾期主管機關應廢止其特許，並不予退還履行保證金或由主管機關通知保證銀行履行保證責任；其籌設同意書及網路建設許可證之有效期間尚未屆滿者，並廢止其籌設同意及網路建設許可。