Noise Control Act Article 28

When testing is not obtained pursuant to Article 13, or when testing results fail to comply with control standards, the owner or user of the motor vehicle shall be fined NT$3,600 to NT$36,000, and notified to make improvements within a prescribed period of time; those that have still failed to complete improvements by the deadline shall be fined per violation.
中文原文 噪音管制法第28條
不依第十三條規定檢驗,或經檢驗不符合管制標準者,處機動車輛所有人或使用人新臺幣三千六百元以上三萬六千元以下罰鍰,並通知限期改善;屆期仍未完成改善者,按次處罰。

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