The rules of origin, which determine which goods can benefit from the lower rates of customs duty under the preferential trade arrangements, are currently too complicated, as well as being susceptible to abuse.
Päritolureeglid, millega määratakse kindlaks kaubad, mille suhtes võib sooduskaubanduse kokkulepete alusel kohaldada madalamaid tollimaksumäärasid, on praegu liiga keerulised ning võimaldavad väärtarvitust.