<ul><li>It is certificate which specifies the country of production of good.
It traditionally states from what country the shipped goods originate, but "originate" in a CO does not mean the country the goods are shipped from, but the country where their goods are actually made.</li></li></ul><li><ul><li>This certificate is necessary where a country offers a prefferential tariff to certain country.
The document may be issued by the exporter or be confirmed by another party in the exporting country, such as a notary, a chamber of commerce,Export promotion councils or a local consulate of the destination country.</li></li></ul><li>A Certificate of Origin(COO) is required when goods of a particular type from certain countries are banned<br />An often used practice is that if more than 50% of the cost of producing the goods originate from one country, that country is acceptable as the country of origin (then the "national content" is more than 50%)<br />
Some importing countries insist that the invoice should be signed by the importing country’s consul located in exporters country.<br />Such invoices signed by the consul is known as consular invoice.<br />The main purpose of a consular certificate is to enable the authorities of the importing country to collect accurate information about value,quality,grade,source etc of the imports<br />
It is for the purpose of assessing import duties.<br />