Aircraft Flight Operation Regulations Article 285-10
An operator shall establish a procedure to ensure that each piece of carry-on baggage is adequately and securely stowed.
中文原文 航空器飛航作業管理規則第285-10條
航空器使用人應訂定程序，以確保乘員之行李及貨物均已牢固安置。
English translation for reference only; the Chinese text prevails. Not legal advice.