Waiver   Document used to allow cargo carriage by different flag vessels other than original destination country vessels. Also for government cargo where vessels under certain flags cannot carry the shipments.
War Risk   Surcharge for covering additional insurance premium incurred by a vessel entering a war zone.
WayBill  See also Sea WayBill.
Weights   (1) Gross/Long Ton: 2,240 lbs. (1016 kg.)
(2) Net/Short Ton: 2,000 lbs.(907.19 kg.)
(3) Metric/Kilo Ton: 2,204.6 lbs.(1,000 kg.)
Wharf   A structure built along a shore, and often into the water, at which boats can be docked and loaded, or unloaded; (Also known as pier or quay0
Wharfage  Charge for handling traffic on the wharf, or for docking vessels at the wharf.