(a) in the case of tariff headings in respect of which the basic duties do not differ by more than 15% in either direction from the duties in the Common Customs Tariff, these latter duties shall be applied;
(a) i gcás na gceannteideal taraife nach bhfuil na bundleachtanna dóibh thar 15% nios mó ná níos lü ná na dleachtanna faoin gComhtharaif Chustam, is iad na dleachtanna deiridh sin a chuirfear chun feidhme;