7 C.F.R. § 322.34 – Inspection; refusal of entry.

(a) You must present shipments of restricted articles to the inspector at the port of entry in the United States. Shipments of restricted articles must remain at the port of entry until released by the inspector.
(b) The inspector at the port will confirm that all shipments of restricted articles have proper documentation (see § 322.30) and that you provided notice of arrival for all shipments of restricted articles (see § 322.32).
(c) If, upon inspection, any shipment fails to meet the requirements of this part, that shipment will be refused entry into the United States. In accordance with § 322.2(c), the inspector will offer you, or in your absence the shipper, the opportunity to immediately export any refused shipments, or confiscate and destroy the refused shipments.
(Approved by the Office of Management and Budget under control number 0579-0207)