0302.89.50.70 - Atka mackerel (Atkafish) (Pleurogrammus monopterygius)

This HTS code, 0302.89.50.70, specifically classifies fresh or chilled Atka mackerel, also known as Atkafish (Pleurogrammus monopterygius). This category falls under "Other fish" within the broader heading for fish, fresh or chilled, excluding fillets and other fish meat of heading 0304. It captures this particular species of fish when presented in its raw, unprocessed state, without any freezing or further processing that would alter its physical form.

The distinction of this sub-classification lies in its precise identification of the Atka mackerel species. While sibling categories at this level encompass other types of "Other fish" such as smelts, cusk, shad, sturgeon, and sable fish, this code isolates Atka mackerel. This specificity is crucial for accurate tariff assessment and trade statistics, as different fish species may have varying duty rates or require specific import/export documentation.

As a leaf node, this classification does not contain further subcategories. Therefore, the focus remains on the definitive identification of the Atka mackerel. When classifying, it is essential to confirm the species through scientific nomenclature or verifiable documentation to ensure correct application of this code and avoid confusion with other "other fish" not explicitly listed.