The customs authorities of El Salvador shall take the necessary steps to carry out quantitative checks on exports of the products referred to in Article 1.

Box 4 of certificates of origin Form A issued by the competent authorities of El Salvador pursuant to this Regulation shall bear one of the following endorsements:

• ‘Derogation — Commission Implementing Regulation (EU) No …/2012’,

• ‘Excepción — Reglamento de Ejecución (UE) n^o …/2012 de la Comisión’.

The competent authorities of El Salvador shall forward to the Commission, by the end of the month following each civil quarter, a quarterly statement of the quantities in respect of which certificates of origin Form A have been issued pursuant to this Regulation and the serial numbers of those certificates.