The Collaborative International Dictionary of English v.0.48:

Warehousing \Ware"hous`ing\, n.
   The act of placing goods in a warehouse, or in a customhouse
   store.
   [1913 Webster]

   Warehousing system, an arrangement for lodging imported
      articles in the customhouse stores, without payment of
      duties until they are taken out for home consumption. If
      reexported, they are not charged with a duty. See Bonded
      warehouse, under Bonded, a.
      [1913 Webster]