Transportation Occurrences Investigation Act Article 9

When a transportation occurrence mentioned in Paragraph 1 of Article 6 arises, the owner of mode, the operator of mode, the ultra-light vehicle activity group and the authorities and/or organizations of traffic control, fire department or police authority shall notify the TTSB within two hours upon receipt of the information.When an alleged transportation occurrence likely to conform to the definition mentioned in Paragraph 1 of Article 6 arises, the owner of mode, the operator of mode, the ultra-light vehicle activity group, and the authorities and/or organizations of traffic control, fire department or police authority shall notify the TTSB within twenty-four hours upon receipt of the information.
中文原文 運輸事故調查法第9條
第六條第一項之運輸事故發生後,運具所有人、使用人、超輕型載具活動團體及運輸管制、消防或警察機關均應於得知消息後二小時內通報運安會。
疑似第六條第一項之運輸事故發生後,運具所有人、使用人、超輕型載具活動團體及運輸管制、消防或警察機關應於得知消息後二十四小時內通報運安會。

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