0302.22.00.00 - Plaice (Pleuronectes platessa)

This HTS category, 0302.22.00.00, specifically classifies fresh or chilled plaice, scientifically known as *Pleuronectes platessa*. Plaice are a type of flatfish characterized by their asymmetrical bodies and both eyes on one side. This classification pertains solely to the whole fish, in its unfrozen state, and excludes any processed forms such as fillets or other fish meat which would fall under heading 0304.

It is important to distinguish this category from its siblings within subheading 0302.2. Halibut and Greenland turbot are classified under 0302.21.00, while sole are found under 0302.23.00.00, and turbots under 0302.24.00.00. The key differentiator here is the specific species of flatfish. Any flatfish not explicitly listed under the preceding subheadings, including plaice, would be directed to the "Other" category, 0302.29.01.

As a leaf node, this classification does not have further subdivisions. The classification of fresh or chilled plaice is definitive at this level. Importers and exporters should ensure that the product being declared is indeed *Pleuronectes platessa* and meets the conditions of being fresh or chilled to correctly utilize this HTS code.