If one wishes to postpone release of the goods, they may be placed in a CBP bonded warehouse under a warehouse entry. The goods may remain in the bonded warehouse up to five years from the date of importation. At any time during that period, warehoused goods may be re-exported without paying duty or they may be withdrawn for consumption upon paying duty at the duty rate in effect on the date of withdrawal. If the goods are destroyed under CBP supervision, no duty is payable.

While the goods are in the bonded warehouse, they may, under CBP supervision, be manipulated by cleaning, sorting, repacking, or otherwise changing their condition by processes that do not amount to manufacturing. After manipulation, and within the warehousing period, the goods may be exported without the payment of duty, or they may be withdrawn for consumption upon payment of duty at the rate applicable to the goods in their manipulated condition at the time of withdrawal. Perishable goods, explosive substances, or prohibited importations may not be placed in a bonded warehouse.  Information regarding bonded manufacturing warehouses is contained in section 311 of the Tariff Act (19 U.S.C. 1311).