During the informed compliance period until June 4, 2021 (which is subject to zero-rated AMPS NPA – Notice of Penalty Assessment starting January 4, 2021), if an agent files the ACI S10 Supplementary data, the cargo will be loaded and the Customs Release Request can be made using the 9000 marine Cargo Control Number. However, if eHBL data is filed, the Customs Release Request will be on the 8000 CCN. eHBL data and Close Message are mandatory starting January 4, 2021.