9 CFR § 327.5 - Import inspection application.
(a) Applicants must submit an import inspection application, to apply for the inspection of any product offered for entry. Applicants may apply for inspection using a paper or electronic application form.
(b) Import inspection applications for each consignment must be submitted (electronically or on paper) to FSIS in advance of the shipment's arrival at the official import establishment where the product will be reinspected, but no later than when the entry is filed with U.S. Customs and Border Protection.
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