Compulsory Automobile Liability Insurance Act Article 51-1

Where a party with the duty to insure fails to establish another contract for this insurance as provided herein within six months after the expiry of the original policy period, the competent authority may forward the case to highway supervisory authority to revoke the vehicle registration of party’s automobile.
中文原文 強制汽車責任保險法第51-1條
投保義務人於本保險期間屆滿逾六個月,仍未依本法規定再行訂立本保險契約者,主管機關得移請公路監理機關註銷其牌照。

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