19 CFR § 12.101 - Seizure of prohibited switchblade knives.
(b) Notice of seizure. Notice of Customs seizure shall be sent or given to the importer or consignee, which shall inform him of his right to file a petition under section 618, Tariff Act of 1930, as amended (19 U.S.C. 1618), for remission of the forfeiture and permission to export the seized switchblade knives. (See part 171 of this chapter.)