The Law of Ships Article 28-3

The shipping administration authority shall implement spot check for the matters of navigation safety to ships of the Republic of China and non-Republic of China that are shipping passengers and goods or engaged in the business of non-private yachts between ports of the R.O.C.Except for emergency rescue, a ship shall not carry member capacity more than the number approved by the shipping administration authority.
中文原文 船舶法第28-3條
航政機關對中華民國船舶及非中華民國船舶經特許於中華民國各港口間運送客貨或從事非自用遊艇業務之航行安全事項得施行抽查。
船舶除緊急救難外,不得載運超過航政機關核定之乘員人數。

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