the customs authorities are able to exercise customs supervision without having to introduce administrative arrangements disproportionate to the economic needs involved;
i gcás ina mbeidh na húdaráis chustaim in ann maoirseacht chustaim a fheidhmiú gan ghá le socruithe riaracháin a bheadh neamhchomhréireach leis na riachtanais eacnamúla lena mbaineann;