Cold-water shrimp refers specifically to species such as Pandalus borealis harvested from North Atlantic and North Pacific waters, typically smaller and sold peeled. Warm-water or tropical species — including whiteleg shrimp (Litopenaeus vannamei) farmed in Ecuador, India, and Indonesia — classify under 030617. Species identification on the commercial invoice and packing list is essential, as the two subheadings can carry different duty treatment and antidumping exposure.

Antidumping duty orders on warm-water shrimp from several countries have been in place for many years and are among the most actively enforced in the seafood sector. Importers of frozen shrimp should check the current scope of each order with CBP and the Department of Commerce, as scope rulings can affect whether a particular product form or species is covered. Misclassification or incorrect country-of-origin declarations in this context carry significant penalty risk.