Section 01 Live animals; animal products 03 Fish and crustaceans, molluscs and other aquatic invertebrates 03 03 Fish, frozen, excluding fish fillets and other fish meat of heading 03.04. 03 03 54 Mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus) Commodity Code Description 03 03 54 00 Mackerel (Scomber scombrus, Scomber australasicus, Scomber japonicus)