Section 01 LIVE ANIMALS; ANIMAL PRODUCTS. 03 Fish and crustaceans mulluscs and other aquatic invertebrates. 03 03 Fish, frozen, excluding fish fillets and other fish meat of heading 0304 03 03 91 LIVERS, ROES AND MILT: Commodity Code Description 03 03 91 10 LIVERS 03 03 91 20 ROES 03 03 91 30 MILT