Domestic institutions are those who direct deal with the issuance and verification of rules of origin. It differs from country to country and depends also on the specific agreement under which a shipment is classified. For instance, for goods shipped from the exporting country to the importing country under non-preferential regime, the certificate of origin may be certified by the Chamber of Commerce but for if those goods are traded under a free trade agreement, the issuing authority may be one agency of the Ministry of Trade.