Since 1 November 2025, a child under eight must use a child restraint in a private car in Hong Kong unless the child is at least 1.35 metres tall. A passenger aged eight or above, or at least 1.35 metres tall, must use either a suitable restraint or an adult seat belt. The Transport Department also says height and weight—not age alone—should guide the choice of product.
A cross-border trip also enters Mainland China, so do not treat one sentence on a website as legal advice for the whole journey. Before paying, ask the operator to write down what restraint will be fitted and whether it is available on your travel date.
