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To address ongoing aviation security threats, U.S. Customs and Border Protection (CBP) is amending its regulations pertaining to the Air Cargo Advance Screening (ACAS) program to require the transmission of additional data elements. The ACAS Program requires the inbound carrier or other eligible party to electronically transmit certain air cargo data (ACAS data) to CBP for air cargo transported on board U.S.-bound aircraft as early as practicable, but no later than prior to loading of the cargo onto the aircraft. The ACAS Program enhances the security of the aircraft and passengers on U.S.-bound flights by enabling CBP to perform targeted risk assessments on the air cargo prior to the aircraft’s departure for the United States. These risk assessments identify and prevent the loading of high-risk air cargo that could pose a risk to the aircraft during flight.