Analysis
HTS 1605.56.30 covers clams: other under heading 1605 (crustaceans, molluscs and other aquatic invertebrates, prepared or preserved).
Within this group the rate runs from duty-free to 10%. Compared with 1605.56.15 (boiled clams, whether whole, minced or chopped, and whether or not…), which pays 10%, a misclassification either way moves the duty by 10 percentage points.
The normal trade relations rate here is zero, shared by about 46% of the 108 tariff lines in chapter 16, a useful check when a neighbouring dutiable line is a candidate. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
Census statistics map these goods to NAICS 311710 (Seafood Product Preparation and Packaging), an industry of 516 US establishments employing 29,132 people. That concordance is how imports of this line are compared with US output.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 1605.56.05 | Products containing fish meat; prepared meals | Free |
| 1605.56.10 | Razor clams (Siliqua patula) | Free |
| 1605.56.15 | Boiled clams, whether whole, minced or chopped, and whether or not salted, but not otherwise prepared or preserved, in immediate containers, the contents of each container not exceeding 680 grams gross weight | 10% |
| 1605.56.20 | Other: other | Free |
| 1605.56.60 | Other: other | Free |