Warehousing under customs law defers duty until clearance, enabling supply to export-oriented units and attracting later interest. The Customs Act permits importers to remove landed goods to warehousingwithout payment of duty, deferring duty payment until clearance; the scheme covers commercial, production and duty-free shop needs and supply to export-oriented units. Warehousing is subject to prescribed time limits and non-compliance beyond those periods attracts interest liability, linking temporary duty deferment to statutory temporal and compliance constraints.