China implements an import and export license management system for the import and export of protected wild animals or their products. Passengers carrying wild animals or their products into the country shall go through the import formalities at the customs at the place of entry on the strength of the import and export license issued by the China Endangered Species Import and Export Administration Office or its offices. Ivory and its products are protected wildlife products. Passengers should go through the relevant formalities when bringing them into the country.