However, travel abroad is flourishing, and in particular Chinese like to buy things. If there is no way to tell if something is controlled, the "Regulations" stipulates that one must provide a certificate of purchase as well as a permit for taking the item out of the country of origin, provided by the local government.
但國內出國旅遊風氣鼎盛，國人尤喜好購物，如果無法辨明而買回管制內的物品，規定必須要提出購買證明以及購買當地政府出具的許可證明。