Transportation Security Administration
（重定向自TSA lock）
![Seal when under the Department of Transportation](/Images/godic/202502/18/US-TransportationSecurityAdmin-DOTSeal.svg2148.png")
![TSA headquarters located in Pentagon City, Arlington County, Virginia.](/Images/godic/202502/18/Office_buildings_in_Pentagon_City2148.JPG")
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![VIPR team working cars waiting to board a ferry in Portland, Maine](/Images/godic/202502/18/Tsa_viper_csg12148.jpg")
The Transportation Security Administration (TSA) is an agency of the U.S. Department of Homeland Security that has authority over the security of the traveling public in the United States.
The TSA was created as part of the Aviation and Transportation Security Act, sponsored by Don Young in the United States House of Representatives and Ernest Hollings in the Senate, passed by the 107th U.S. Congress, and signed into law by President George W. Bush on November 19, 2001. Originally part of the United States Department of Transportation, the TSA was moved to the Department of Homeland Security on March 9, 2003.