The following are general definitions for the purposes of part 152:

(a)-(b) [Reserved]

(c) Date of exportation. “Date of exportation,” or the “time of exportation” referred to in section 402, Tariff Act of 1930, as amended (19 U.S.C. 1401a), means the actual date the merchandise finally leaves the country of exportation for the United States. If no positive evidence is at hand as to the actual date of exportation, the Center director shall ascertain or estimate the date of exportation by all reasonable ways and means in his power, and in so doing may consider dates on bills of lading, invoices, and other information available to him.

(d) Fair retail value. “Fair retail value” or “fair market value” as used in Section XXII, Harmonized Tariff Schedule of the United States, and part 148 of this chapter means the price actually paid or payable for all imported merchandise, or if not purchased, the value as otherwise ascertained under 19 CFR 152.100 et seq.

If the Center director believes that the entered rate or value of any merchandise is too low, or if he finds that the quantity imported exceeds the entered quantity, and the estimated aggregate of the increase in duties on that entry exceeds $15, he shall promptly notify the importer on Customs Form 29, or its electronic equivalent specifying the nature of the difference on the notice. Liquidation shall be made promptly and shall not be withheld for a period of more than 20 days from the date of mailing of such notice unless in the judgment of the Center director there are compelling reasons that would warrant such action.

When any merchandise not corresponding with the description given in the invoice is found by the examining officer, duties shall be assessed on the merchandise actually found. If the discrepancy appears conclusively to be the result of a mistake and not of any intent to defraud, no proceedings for forfeiture shall be taken. When the entire shipment does not agree with the invoice and there is no evidence of any intent to defraud, a new entry shall be required and the estimated duty paid on the original entry shall be refunded on liquidation as in the case of a nonimportation. (Sec. 499, 46 Stat. 728, as amended; 19 U.S.C. 1499)