This brief You Tube video from John Scanlon, Secretary General of CITES explains what the Convention of International Trade of Endangered Species is.
As a pet shipper, I frequently deal with CITES permits for birds, zoo animals. Inspections of something as simple as the export of a guinea pig are required. Even a guinea pig, which is not a CITES species, still needs to be inspected by US Fish and Wildlife prior to export.
John Scanlon on CITES