Provides information on any manufacturing sectors or services where only citizens or a sub-set of the population in that country are allowed to own or sell.
There are special customs procedures and/or documentation requirements in certain cases, for example, certain food products, textiles, and motor vehicles.  Some of these products, such as oils, vehicles, sugar, textile products, and printing paper, are also subject to import licenses.  Certain imports such as firearms, radioactive materials, fertilizers, vegetable products, and frozen animal embryos require special licenses and customs documents.  Vegetable and animal products require prior authorization from a government authority according to sanitary or phytosanitary regulations.  Other products, such as oil, can only be imported by the government.

Prepared by the International Trade Administration. With its network of more than 100 offices across the United States and in more than 75 markets, the International Trade Administration of the U.S. Department of Commerce utilizes its global presence and international marketing expertise to help U.S. companies sell their products and services worldwide. Locate the trade specialist in the U.S. nearest you by visiting http://export.gov/usoffices.