The HTS schedule classifies Pacific salmon by species at the 10-digit level. Chinook (Oncorhynchus tshawytscha) falls under 0303120012, while sockeye, chum, pink, coho, and other Pacific species each have their own dedicated lines. The scientific name on the commercial invoice or catch certificate is the most reliable basis for correct species-level classification.

While sustainability certifications such as MSC (Marine Stewardship Council) do not affect US customs classification or duty rates, many major US retail and foodservice buyers require them as a procurement condition. Wild chinook fisheries vary in certification status by region and year, so importers should verify certification currency with their supplier before contracting.