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