Another part of the practice relates to matters involving the export from and import into the U.S. of products for investigational or commercial use. These products include drugs, controlled substances, medical devices, foods, pesticides, chemicals, and plant and animal products. They are often subject to different requirements, depending upon their approval, clearance, registration, or other status in the country of origin and country of import. Assistance is provided in conducting this regulatory status evaluation , and counsel is given on related Export Administration Act matters, among other regulatory areas pertaining to trade with foreign nations.