gressively reduced under the same conditions as apply to the elimination of customs duties, subject to the provisions of this Treaty concern ing common commercial policy towards third countries;
a laghdú go comhleanúnach ar na coinníollacha céanna a bhaineann le dleachtanna custaim a dhichur, faoi réir fhorálacha an Chonartha seo maidir le comhbheartas tráchtála i leith tríú tíortha;