Regulations for Administrating Vessel Carriers Article 17-5

A passenger may carry on his or her luggage either in person or request the vessel carrier to carry on board; however, under no circumstances shall a passenger carry a contraband either in person or through checked luggage.For number of pieces, weights, restriction on volume, criteria for complimentary carriage, rate for extra weight or volume of luggage carried by passengers either in person or through checked luggage, the vessel carriers shall propose the rules and criteria and submit to the Shipping Administration for filing and future reference.A passenger shall present his or her passenger ticket for luggage in checked carrier. The luggage shall be carried through the same vessel of passengers.
中文原文 船舶運送業管理規則第17-5條
乘客得將行李隨身攜帶或託交船舶運送業者隨船運送。
但違禁品不得隨身攜帶或託交運送。
乘客隨身攜帶及託交運送之行李,其件數、重量、體積限制、免費運送基準及超額行李收費費率或其他必要事項,由船舶運送業者擬訂送請航政機關備查。
乘客託交運送行李應憑客票,行李應與乘客同船運送。

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