IQF Frozen Herring
Individually Quick Frozen (IQF) whole herrings (Clupea pallasii), each fish frozen separately for easy portioning. HTS 0303.51.00.00 applies to all frozen whole herrings of these species, including IQF technology.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If anchovies instead of herring
Adjacent species like anchovies have separate subheading in same heading 0303.5.
If freeze-dried into vegetables-like form
Advanced dehydration beyond simple freezing moves to Chapter 07 frozen vegetables/legumes.
If made into pellets fit for human consumption
Chapter notes direct pellets fit for humans to 0309, excluding from 0303.
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Import Tips & Compliance
• IQF requires proof of individual freezing process in entry docs to distinguish from block-frozen under same code
• Test for histamine levels mandatory for scombroid species relatives; herrings prone to issues
• Avoid partial thawing in shipping; CBP may reject if not demonstrably frozen whole fish
Related Products under HTS 0303.51.00.00
Frozen Atlantic Herring Whole
Whole frozen Atlantic herring (Clupea harengus) caught in the North Atlantic, preserved by freezing to below -18°C. This product falls under HTS 0303.51.00.00 as it is specifically frozen herrings of the named species, excluding fillets or meat of heading 0304.
Frozen Pacific Herring Whole
Whole frozen Pacific herring (Clupea pallasii) from Alaskan waters, deep-frozen for long-term storage. Classified under HTS 0303.51.00.00 for frozen herrings of this exact species, in whole form without filleting.
Frozen Herring for Bait
Frozen whole herrings (Clupea harengus membras subspecies) packaged specifically for use as fishing bait. Remains under HTS 0303.51.00.00 as the HTS classification is by species and frozen state, regardless of end use.
Frozen Norwegian Herring
Frozen whole Norwegian spring-spawning herring (Clupea harengus), a premium stock from the Norwegian Sea. Specifically covered by HTS 0303.51.00.00 for frozen Clupea harengus herrings.
Block Frozen Herring
Herring (Clupea spp.) frozen in large blocks of multiple whole fish, typically 20-40kg for industrial use. HTS 0303.51.00.00 for frozen whole herrings, form of freezing irrelevant.
Frozen Alaskan Herring Roe-on
Whole frozen Pacific herring (Clupea pallasii) with roe intact, from Alaskan fisheries. Still classified as whole fish under HTS 0303.51.00.00; roe not separated as offal.