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Exporting to Syria and Iran
Exports to some countries have additional licensing requirements. General control of these licenses is with the US Department of Commerce's Bureau of Industry and Security.
Access to their website provides information on exporting to these markets.
http://www.bis.doc.gov/about/index.htm
A direct like to the licensing links is:
http://www.bis.doc.gov/licensing/index.htm
In addition here is information from the USDA on exporting to Syria and Iran
Exporting to Syria