Dried, Salted, or Brined Fish Fillets (Not Smoked), NESOI

Herring and mackerel fillets preserved by salting, drying, or brining dominate this residual heading, with dedicated lines for herring fillets in small retail containers (0305392000) and mackerel fillets in similar pack sizes (0305394000), alongside bulk herring (0305396110) and a broad residual line (0305396180). Iceland and the Faroe Islands together account for the leading share of US imports, reflecting the North Atlantic's role as the primary herring and mackerel harvesting region. The container-size threshold (at or below 6.8 kg for the retail lines) is a key classification determinant. FDA prior notice and seafood HACCP requirements apply; importers should consult a licensed customs broker or the relevant agency regarding admissibility.