Goods imported from Mexico on Monday, February 1, 2027 qualified as originating, but no USMCA claim was made at entry. Under 19 CFR 182.31, by when may the importer file a post-importation claim for a refund?
19 CFR 182.31 lets the importer file a post-importation claim for a refund of excess duties at any time within one year after the date of importation, under 19 U.S.C. 1520(d) and the procedures in 182.32 (declaration, copy of the certification of origin, statement about copies of the entry summary). Four years is the certification's validity period; 180 days is the protest period. Source: 19 CFR 182.31-182.32 (eCFR, as at 7 Oct 2026).
Using the protest period for a USMCA post-importation claim.
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