ACLP’s Import Customs Supervision Area, also known as the Import Secondary Supervision Warehouse. Its major functions include the storage and distribution service of imported freight. When the imported freights arrive at Beijing Capital International Airport, it will be processed by the Air Cargo Terminal. After that, the freight will enter special distribution channel and quickly be allocated to import supervision warehouse. ACLP's Export Customs Supervision Area, also known as the Export Secondary Supervision Warehouse, is approved by Beijing Customs to provide a wide range of facilities and services catering to export cargo. The services include independent assembly and loading operation area, storage warehouse, areas for cargo collection and security inspection. The Export Secondary Supervision Warehouse is also directly connected to the Air Cargo Terminals for better efficiency.