Classification complete
0304 42 90
Fresh or chilled trout fillets, each weighing <= 400 g, of Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita or Oncorhynchus gilae
The spaces only make the code easier to read. Customs declarations normally use the unspaced form, 03044290.