跟據《預防及控制疾病條例》（第599章），所有參觀人士每次進場前必須登記基本資料，而所有資料亦會於31日後銷毀。
Under the Prevention and Control of Disease Ordinance (Cap. 599), all visitors need to register their information before entering the Expo each time. All information will be destroyed after 31 days.