First, travelers should know that all fruits, vegetables, seeds, meat and animal products must be declared on the CBP (Customs and Border Protection) Declaration Form, whether they are packed on a carry-on bag, in checked luggage or in a vehicle. Failure to do so may result in fines ranging from $1,000 to $50,000 (as of 2010).
Any type of canned or fresh meat is specifically forbidden when crossing into the United States. These limitations also extend to other untreated animal products, such as unpasteurized cheese and hunting trophies, such as deer heads. Products containing ingredients from animal parts are also forbidden. (For example, soup containing broth from foreign livestock may not be allowed.)
Laws about importing fruits and vegetables vary depending on the type of vegetation and the country of origin. However, even plants that are legal must be inspected and declared to be free of pests.
Any plants being imported for the purpose of farming or gardening must receive a phytosanitary certificate in advance. If you would like to contact the U.S. Department of Agriculture regarding one of these certificates, call 301-734-8645. You may also write to the following address:
U.S. Department of Agriculture
Animal and Plant Health Inspection Service
Attention: Permit Unit
Plant Protection and Quarantine
4700 River Road, Unit 136
Riverdale, MD 20737-1236.
Regulations concerning the importation of live birds and other animals vary greatly, depending on the species. Contact the USDA with any questions, as guidelines may be subject to frequent change.
For a list of items that are allowed over the U.S. border, see the link in Resources. However, be aware that this list may change frequently.
Remember, declare all souvenirs and food you bring over from a foreign country, even if you are confident the item is legal. You may still receive a fine if you do not mention it. Be prepared to have carry-on and checked bags, or your vehicle searched for anything illegal. Things that may not be legally imported will be confiscated and disposed of by a customs worker.