Duties are generally based on the value of the goods (ad valorem duties); some other factor such as weight or quantity (specific duties); or a combination of value and other factors (compound duties)DWC DWC Dead-weight Capacity (of vessel to carry cargo) E&oe E&oe Errors and omissions excepted EAPE EAPE Exchange as per Endorsement EAR EAR Export After Repair EC EC European Community ECA ECA Econom