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April 2026, question 79
Valuation, Appraisement and Duty Assessment · Duties, MPF, HMF and calculations
If the commercial invoice is in a foreign currency, the foreign currency shall be converted to U.S. dollars using the proclaimed rate or certified rate or rates effective on the _____.
- Date of import
- Date of entry
- Date of export
- Date of lading

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CBP's answer: C. C: Date of export
Section 159.32 says the date of exportation for currency conversion is fixed under 152.1(c), which defines it as the actual date the merchandise finally leaves the country of exportation for the United States. Foreign currency on the invoice is converted at the rate effective on the date of export, so C is right. The date of import, entry or lading is not the conversion date.
The date of exportation for currency conversion shall be fixed in accordance with § 152.1(c) of this chapter. 19 CFR 159.32
means the actual date the merchandise finally leaves the country of exportation for the United States 19 CFR 152.1(c)
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CBP's key cites: 19 CFR 159.32
Question and key from CBP's April 2026 exam and answer key. The walk-through is ours; quotes are from the pinned editions in the reference viewer (HTSUS 2026 Basic, 19 CFR 2025 edition).