Harmonized System
U.S. exports of Clams, Cockles, and Ark Shells, Live, Fresh, or Chilled (HS 030771) totaled $9.3M in August 2026.
Importers of Clams, Cockles, and Ark Shells, Live, Fresh, or Chilled paid $14K in duties in August 2026, an average duty rate of 0.93% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Clams, Cockles, and Ark Shells, Live, Fresh, or Chilled imports of $1.5M in August 2026 ran 51% above the year-to-date monthly average of $1.0M.
Last updated: August 2026 dataCanada and Mexico are the primary suppliers of live, fresh, and chilled clams to the US, benefiting from geographic proximity and established shellfish aquaculture industries on both coasts. The US tariff schedule makes a commercially significant distinction between geoduck clams (0307710050) — a high-value species exported primarily to Asian markets — and all other live or fresh clams (0307710070), with cockles and ark shells in a separate line (0307710090). Geoduck, harvested mainly from Pacific Northwest waters and British Columbia, commands premium pricing and is subject to strict size and harvest regulations. All shellfish imports are subject to FDA admissibility review and must comply with National Shellfish Sanitation Program (NSSP) requirements; importers should verify that the source country has a current NSSP-equivalent agreement recognized by the US.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
238 import shipments a month
Geoduck (Panopea generosa) is one of the highest-value bivalves in international trade, with most US and Canadian harvest destined for live export to China and other Asian markets. CBP tracks it separately (0307710050) because of its distinct commercial significance, pricing, and trade-flow patterns compared to other clam species. Misclassifying geoduck as 'other clams' under 0307710070 could result in data discrepancies and potential entry issues.
The National Shellfish Sanitation Program (NSSP) is a federal-state cooperative framework that sets sanitation standards for shellfish harvesting and processing. For imports, FDA requires that the source country have a shellfish safety program equivalent to NSSP standards, typically formalized through a memorandum of understanding. Shipments from countries without such an agreement may be refused entry. Importers should confirm their supplier's country is on FDA's list of approved shellfish-exporting nations before contracting for live or fresh clam shipments.
Subheading 2 of 28 in heading 0307
Subheading 030771 · $9.3M of $42.9M
ImportsExports
Imports
$1.5MYoY · free account
Exports
$9.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $11.8M of Clams, Cockles, and Ark Shells, Live, Fresh, or Chilled and exported $107.2M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 030771 — Clams, Cockles, and Ark Shells, Live, Fresh, or Chilled, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 0307710070 | Clams, Live, Fresh or Chilled, Except Geoduck Clam | $1.5M | 0.98% | 7.85% | $14K |
| 0307710090 | Cockles and Ark Shells, Live, Fresh or Chilled | $45K | 0.00% | 0.00% | -- |
| 0307710050 | Geoduck Clams, Live, Fresh or Chilled | $42K | 0.00% | 0.00% | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 0307710050 | Geoduck Clams, Live, Fresh or Chilled | $8.7M |
| 0307710070 | Clams, Live, Fresh or Chilled, Except Geoduck Clam | $418K |
| 0307710090 | Cockles and Ark Shells, Live, Fresh or Chilled | $98K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · August 2026
destination
Hong Kong and China together take 94% of it.
customs district
origin
entry
rate provision · imports
92.6% enters free of duty; duty collected equals 0.93% of imports for consumption.