Under this option, the ATB/BTA passengers and the driver in the bonded vehicle have not gone through the CIQ clearance before travelling on the public road network of Hong Kong. If the ATB/BTA passengers were to be exempted from the CIQ procedures of HKSAR, under the requirements set by HKSAR Security Bureau and the law enforcement agencies, the ATB/BTA passengers must remain in the “airside” after entering / before departing HKIA, as if they were air-air transit/transfer passengers exempted from the CIQ clearance requirements of HKSAR. However, public roads are not “airside” which is legally defined as the airport’s Restricted Area designated under the Airport Authority Ordinance (Cap 483) to restrict passenger / vehicle access, and impose aviation security features (e.g. passenger security checks before entry). This option is therefore legally not viable.