The operational certification procedures are explained in Annex 4.

For the purposes of claiming preferential tariff treatment, the following shall be submitted to the customs authority of the importing Party by the importer:

(a)	a valid certificate of origin (CO); and
(b)	other documents as required in accordance with the laws and regulations of the importing Party (e.g. invoices, including third country invoices, and a through bill of lading issued in the exporting Party).

A CO shall be submitted to the customs authority of the importing Party within one year from the date of issuance. The exporter or producer shall keep these records for three years after the date on which the CO was issued. Such record includes all supporting documents presented to prove the qualification as an originating good of the exporting Party.