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HSChapter 38
U.S. imports of certified reference materials as defined in note 2 to chapter 38 (HS 3822900000) totaled $9.8M in June 2026, traded with 45 countries.
Importers of Certified Reference Materials As Defined in Note 2 to Chapter 38 paid $753K in duties in June 2026 — an effective duty rate of 10% on $7.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
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Monthly import values over time
No geographic breakdown available
U.S. trade for this product is not broken down by state or port in the latest Census Bureau release.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $2.3M | $8.4M | +$6.2M |
| CHINA | $531K | $4.0M | +$3.4M |
| UNITED KINGDOM | $1.8M | $2.7M | +$919K |
| GERMANY | $1.2M | $2.6M | +$1.5M |
| MEXICO | $21K | $2.5M | +$2.5M |