Article 6
1. The provisions of Articles 1 to 5 above shall apply only in so far as the rules regulating trade in the context of this Regulation between each of the countries hereinbefore specified are identical to the provisions laid down in the basic Regulation and in this Regulation. 2. In addition, each CACM country undertakes to the Commission of the European Communities that it will, through the Permanent Secretariat of the Central American Common Market (hereinafter referred to as SIECA), comply or ensure compliance with the rules concerning the preparation and issue of certificates of origin Form A and with those relative to administrative cooperation contained in Articles 7 and 8 below.