Home > Regional > North America > United States > Government > Executive Branch > Department of Homeland Security > Border and Transportation Security Directorate
http://www.aphis.usda.gov/
Information on animal and plant health/disease topics, USDA regulations, control of invasive species, agricultural chemicals, and related public health issues.
http://www.tsa.gov/
Charged with providing effective and efficient security for passenger and freight transportation in the United States. Mission, press releases, employment, milestones and contact information.
http://www.cbp.gov/
Includes the former Border Patrol and Customs Service. Missions include detecting and preventing the illegal entry of persons and goods into the country.
Home > Regional > North America > United States > Government > Executive Branch > Department of Homeland Security > Border and Transportation Security Directorate
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